Yes, Muhammad shows in his Koran that his Allah is the rain god of the Quraysh polytheistic pantheon, and continues that function into Islam. First the story of the prophets of Baal in the Bible in NIV 1 Kings 18:16-40:
16 So Obadiah went to meet Ahab and told him, and Ahab went to meet Elijah. 17 When he saw Elijah, he said to him, “Is that you, you troubler of Israel?”
18 “I have not made trouble for Israel,” Elijah replied. “But you and your father’s family have. You have abandoned the Lord’s commands and have followed the Baals. 19 Now summon the people from all over Israel to meet me on Mount Carmel. And bring the four hundred and fifty prophets of Baal and the four hundred prophets of Asherah, who eat at Jezebel’s table.”
20 So Ahab sent word throughout all Israel and assembled the prophets on Mount Carmel. 21 Elijah went before the people and said, “How long will you waver between two opinions? If the Lord is God, follow him; but if Baal is God, follow him.”
But the people said nothing.
22 Then Elijah said to them, “I am the only one of the Lord’s prophets left, but Baal has four hundred and fifty prophets. 23 Get two bulls for us. Let Baal’s prophets choose one for themselves, and let them cut it into pieces and put it on the wood but not set fire to it. I will prepare the other bull and put it on the wood but not set fire to it. 24 Then you call on the name of your god, and I will call on the name of the Lord. The god who answers by fire—he is God.”
Then all the people said, “What you say is good.”
25 Elijah said to the prophets of Baal, “Choose one of the bulls and prepare it first, since there are so many of you. Call on the name of your god, but do not light the fire.” 26 So they took the bull given them and prepared it.
Then they called on the name of Baal from morning till noon. “Baal, answer us!” they shouted. But there was no response; no one answered. And they danced around the altar they had made.
27 At noon Elijah began to taunt them. “Shout louder!” he said. “Surely he is a god! Perhaps he is deep in thought, or busy, or traveling. Maybe he is sleeping and must be awakened.” 28 So they shouted louder and slashed themselves with swords and spears, as was their custom, until their blood flowed. 29 Midday passed, and they continued their frantic prophesying until the time for the evening sacrifice. But there was no response, no one answered, no one paid attention.
30 Then Elijah said to all the people, “Come here to me.” They came to him, and he repaired the altar of the Lord, which had been torn down. 31 Elijah took twelve stones, one for each of the tribes descended from Jacob, to whom the word of the Lord had come, saying, “Your name shall be Israel.” 32 With the stones he built an altar in the name of the Lord, and he dug a trench around it large enough to hold two seahs of seed. 33 He arranged the wood, cut the bull into pieces and laid it on the wood. Then he said to them, “Fill four large jars with water and pour it on the offering and on the wood.”
34 “Do it again,” he said, and they did it again.
“Do it a third time,” he ordered, and they did it the third time. 35 The water ran down around the altar and even filled the trench.
36 At the time of sacrifice, the prophet Elijah stepped forward and prayed: “Lord, the God of Abraham, Isaac and Israel, let it be known today that you are God in Israel and that I am your servant and have done all these things at your command. 37 Answer me, Lord, answer me, so these people will know that you, Lord, are God, and that you are turning their hearts back again.”
38 Then the fire of the Lord fell and burned up the sacrifice, the wood, the stones and the soil, and also licked up the water in the trench.
39 When all the people saw this, they fell prostrate and cried, “The Lord—he is God! The Lord—he is God!”
40 Then Elijah commanded them, “Seize the prophets of Baal. Don’t let anyone get away!” They seized them, and Elijah had them brought down to the Kishon Valley and slaughtered there.
NIV 1 Kings 18:16-40

Koran 3:183
Now for Muhammad’s account, the anonymous “They” are the Jews of Muhammad’s time, who tell Muhammad the summary of the above story with:
3:183 [They are] those who said, “Indeed,
AllahGod has taken our promise not to believe any messenger until he brings us an offering which fire [from heaven] will consume.”Say, “There have already come to you messengers before me with clear proofs and [even] that of which you speak. So why did you kill them, if you should be truthful?”
Koran 3:183
Note that Muhammad is here complaining about the rightful executions of the false prophets of Baal by Elijah. Thus this shows that Muhammad is, like his fellow false prophets, a prophet not of God, but of Baal, which Muhammad tries to pass off as God, by referring to him as “Allah”. Thus Muhammad inadvertently reveals that Allah is a false god, and that Islamic doctrine and Islam are false.
This story of Elijah is further confirmed in Koran later with Muhammad’s corrupted version of the story in Koran 37:123-132:
37:123 And indeed, Elias (Elijah) was from among the messengers, 124 When he said to his people, “Will you not fear Allah? 125 Do you call upon Ba’l (Baal) and leave the best of creators – 126 Allah, your Lord and the Lord of your first forefathers?”
127 And they denied him, so indeed, they will be brought [for punishment], 128 Except the chosen servants of Allah.
129 And We left for him [favorable mention] among later generations: 130 “Peace upon Elias (Elijah).”
131 Indeed, We thus reward the doers of good.
132 Indeed, he was of Our believing servants.
Koran 37:123-132
Note that in Muhammad’s corrupted story, the “people” who choose to follow Baal and denied Elijah, are the priests of Baal. They were the ones who were executed long ago by the people that followed Elijah. the Israelites, which isn’t mentioned by Muhammad here. These are the people that Muhammad complained about Koran 37:123-132 above, showing that Muhammad is a priest of Baal, and Muhammad is also very confused.
Muhammad continues the worship of Baal as Allah in Islam, in Koran. See for yourself, what Muhammad recited about his idol, Allah AKA Baal.
Koran 2:19-20

19 Or [it is] like a rainstorm from the sky within which is darkness, thunder and lightning. They put their fingers in their ears against the thunderclaps in dread of death. But Allah is encompassing of the disbelievers. 20 The lightning almost snatches away their sight. Every time it lights [the way] for them, they walk therein; but when darkness comes over them, they stand [still].
Koran 2:19-20
Koran 2:21-22

…sent down from the sky, rain…
Koran 2:21-22
Koran 2:25

…beneath which rivers flow.
Koran 2:25
Koran 2:164

…what Allah has sent down from the heavens of rain, giving life thereby to the earth…
Koran 2:164
Koran 2:210

…that Allah should come to them in covers of clouds…
Koran 2:210
Koran 2:265

…like a garden on high ground which is hit by a downpour – so it yields its fruits in double. And [even] if it is not hit by a downpour, then a drizzle [is sufficient].
Koran 2:265
Koran 3:113-117

…a wind containing frost which strikes the harvest…
Koran 3:113-117
Koran 6:4-6

And We sent [rain from] the sky upon them in showers and made rivers flow beneath them;
Koran 6:4-6
Koran 6:99

And it is He who sends down rain from the sky,…
Koran 6:99
Koran 7:57-58

And it is He who sends the winds as good tidings before His mercy until, when they have carried heavy rainclouds, We drive them to a dead land and We send down rain therein and bring forth thereby [some] of all the fruits.
Koran 7:57-58
Koran 8:11-14

…sent down upon you from the sky, rain by which to purify you…
Koran 8:11-14
Koran 10:24-25

…like rain which We have sent down from the sky that the plants of the earth absorb…
Koran 10:24-25
Koran 11:52

And O my people, ask forgiveness of your Lord and then repent to Him.
He will send [rain from] the sky upon you in showers and increase you in strength [added] to your strength.
And do not turn away, [being] criminals.”
Koran 11:52
Koran 13:12

It is He who shows you lightening, [causing] fear and aspiration, and generates the heavy clouds.
Koran 13:12
Koran 13:17

He sends down from the sky, rain, and valleys flow according to their capacity, and the torrent carries a rising foam.
Koran 13:17
Koran 14:32

It is Allāh who created the heavens and the earth and sent down rain from the sky and produced thereby some fruits as provision for you and subjected for you1 the ships to sail through the sea by His command and subjected for you the rivers.
Koran 14:32
Koran 15:22

And We have sent the fertilizing winds and sent down water from the sky and given you drink from it. And you are not its retainers.
Koran 15:22
Koran 16:10

It is He who sends down rain from the sky; from it is drink and from it is foliage in which you pasture [animals].
Koran 16:10
Koran 16:65

And Allah has sent down rain from the sky and given life thereby to the earth after its lifelessness. Indeed in that is a sign for a people who listen.
Koran 16:65
Koran 17:66

It is your Lord who drives the ship for you through the sea that you may seek of His bounty.
Koran 17:66
Koran 18:45

And present to them the example of the life of this world, [its being] like rain which We send down from the sky, and the vegetation of the earth mingles with it and [then] it becomes dry remnants, scattered by the winds. And Allah is ever, over all things, Perfect in Ability.
Koran 18:45
Koran 20:53

[It is He] who has made for you the earth as a bed [spread out] and inserted therein for you roadways and sent down from the sky, rain and produced thereby categories of various plants.
Koran 20:53
Koran 21:30

Have those who disbelieved not considered that the heavens and the earth were a joined entity, and We separated them and made from water every living thing? Then will they not believe?
Koran 21:30
Koran 21:79
And We subjected the mountains to exalt [Us], along with David and [also] the birds. And We were doing [that].
Koran 21:79
Koran 22:5

…And you see the earth barren, but when We send down upon it rain, it quivers and swells and grows [something] of every beautiful kind.
Koran 22:5
Koran 22:31
…it is as though he had fallen from the sky and was snatched by the birds or the wind carried him down into a remote place.
Koran 22:31
Koran 22:63

Do you not see that Allah has sent down rain from the sky and the earth becomes green? Indeed, Allah is Subtle and Acquainted.
Koran 22:63
Koran 22:65

Do you not see that Allah has subjected to you whatever is on the earth and the ships which run through the sea by His command?…
Koran 22:65
Koran 22:65

…And He restrains the sky from falling upon the earth, unless by His permission.
Koran 22:65
Koran 23:18

And We have sent down rain from the sky in a measured amount and settled it in the earth. And indeed, We are Able to take it away.
Koran 23:18
Koran 24:40

Or [they are] like darknesses within an unfathomable sea which is covered by waves, upon which are waves, over which are clouds – darknesses, some of them upon others. When one puts out his hand [therein], he can hardly see it.
Koran 24:40
Koran 24:43

Do you not see that Allah drives clouds? Then He brings them together, then He makes them into a mass, and you see the rain emerge from within it. And He sends down from the sky, mountains [of clouds] within which is hail, and He strikes with it whom He wills and averts it from whom He wills. The flash of its lightening almost takes away the eyesight.
Koran 24:43
Koran 24:45

Allah has created every [living] creature from water.
Koran 24:45
Koran 25:48

And it is He who sends the winds as good tidings before His mercy, and We send down from the sky pure water
Koran 25:48
Koran 25:53

And it is He who has released [simultaneously] the two seas, one fresh and sweet and one salty and bitter, and He placed between them a barrier and prohibiting partition.
Koran 25:53
Koran 25:54

And it is He who has created from water a human being and made him [a relative by] lineage and marriage. And ever is your Lord competent [concerning creation].
Koran 25:54
Koran 27:60

[More precisely], is He [not best] who created the heavens and the earth and sent down for you rain from the sky, causing to grow thereby gardens of joyful beauty which you could not [otherwise] have grown the trees thereof? Is there a deity with Allah ? [No], but they are a people who ascribe equals [to Him].
Koran 27:60
Koran 29:63

And if you asked them, “Who sends down rain from the sky and gives life thereby to the earth after its lifelessness?” they would surely say ” Allah.” Say, “Praise to Allah”; but most of them do not reason.
Koran 29:63
Koran 30:24

And of His signs is [that] He shows you the lightening [causing] fear and aspiration, and He sends down rain from the sky by which He brings to life the earth after its lifelessness. Indeed in that are signs for a people who use reason.
Koran 30:24
Koran 30:46

And of His signs is that He sends the winds as bringers of good tidings and to let you taste His mercy and so the ships may sail at His command and so you may seek of His bounty, and perhaps you will be grateful.
Koran 30:46
Koran 30:48

It is Allah who sends the winds, and they stir the clouds and spread them in the sky however He wills, and He makes them fragments so you see the rain emerge from within them. And when He causes it to fall upon whom He wills of His servants, immediately they rejoice
Koran 30:48
Koran 31:10

He created the heavens without pillars that you see and has cast into the earth firmly set mountains, lest it should shift with you, and dispersed therein from every creature. And We sent down rain from the sky and made grow therein [plants] of every noble kind.
Koran 31:10
Koran 31:34

Indeed, Allah [alone] has knowledge of the Hour and sends down the rain and knows what is in the wombs.
Koran 31:34
Koran 32:27

Have they not seen that We drive the water [in clouds] to barren land and bring forth thereby crops from which their livestock eat and [they] themselves? Then do they not see?
Koran 32:27
Koran 33:9

O you who have believed, remember the favor of Allah upon you when armies came to [attack] you and We sent upon them a wind and armies [of angels] you did not see. And ever is Allah, of what you do, Seeing.
Koran 33:9
Koran 35:27

Do you not see that Allah sends down rain from the sky, and We produce thereby fruits of varying colors? And in the mountains are tracts, white and red of varying shades and [some] extremely black.
Koran 35:27
Koran 38:42

[So he was told], “Strike [the ground] with your foot; this is a [spring for] a cool bath and drink.”
Koran 38:42
Koran 39:21

Do you not see that Allah sends down rain from the sky and makes it flow as springs [and rivers] in the earth; then He produces thereby crops of varying colors; then they dry and you see them turned yellow; then He makes them [scattered] debris. Indeed in that is a reminder for those of understanding.
Koran 39:21
Koran 41:16

So We sent upon them a screaming wind during days of misfortune to make them taste the punishment of disgrace in the worldly life; but the punishment of the Hereafter is more disgracing, and they will not be helped.
Koran 41:16
Koran 41:39
And of His signs is that you see the earth stilled, but when We send down upon it rain, it quivers and grows. Indeed, He who has given it life is the Giver of Life to the dead. Indeed, He is over all things competent.
Koran 41:39
Koran 42:28

And it is He who sends down the rain after they had despaired and spreads His mercy. And He is the Protector, the Praiseworthy.
Koran 42:28
Koran 42:32-34

42:32 And of His signs are the ships in the sea, like mountains. 33 If He willed, He could still the wind, and they would remain motionless on its surface. Indeed in that are signs for everyone patient and grateful. 34 Or He could destroy them for what they earned; but He pardons much.
Koran 42:32-34
Koran 43:11
And who sends down rain from the sky in measured amounts, and We revive thereby a dead land – thus will you be brought forth –
Koran 43:11
Koran 50:9

And We have sent down blessed rain from the sky and made grow thereby gardens and grain from the harvest
Koran 50:9
Koran 51:20-23

51:20 And on the earth are signs for the certain [in faith] 21 And in yourselves. Then will you not see?
22 And in the heaven is your provision and whatever you are promised.
23 Then by the Lord of the heaven and earth, indeed, it is truth – just as [sure as] it is that you are speaking.
Koran 51:20-23
What is in the “heaven” or rather sky, is the freshwater ocean that the Sun and Moon swim in, according to Muhammad. This falls to the ground as rain, providing water to crops, cattle and humans “your provision”.
Koran 51:41

And in ‘Aad [was a sign], when We sent against them the barren wind.
Koran 51:41
Koran 54:11

54:11 Then We opened the gates of the heaven with rain pouring down 12 And caused the earth to burst with springs, and the waters met for a matter already predestined.
Koran 54:11
Koran 54:19-20

54:19 Indeed, We sent upon them a screaming wind on a day of continuous misfortune, 20 Extracting the people as if they were trunks of palm trees uprooted.
Koran 54:19-20
Koran 56:68-70

56:68 And have you seen the water that you drink? 69 Is it you who brought it down from the clouds, or is it We who bring it down? 70 If We willed, We could make it bitter, so why are you not grateful?
Koran 56:68-70
Koran 67:30

Say, “Have you considered: if your water was to become sunken [into the earth], then who could bring you flowing water?”
Koran 67:30
Koran 69:6-7

69:6 And as for ‘Aad, they were destroyed by a screaming, violent wind 7 Which Allah imposed upon them for seven nights and eight days in succession, so you would see the people therein fallen as if they were hollow trunks of palm trees.
Koran 69:6-7
Koran 69:11

Indeed, when the water overflowed, We carried your ancestors in the sailing ship…
Koran 69:11
Koran 72:16

And [ Allah revealed] that if they had remained straight on the way, We would have given them abundant provision
Or: plenty water to drink.
Koran 72:16
Koran 77:27

And We placed therein lofty, firmly set mountains and have given you to drink sweet water.
Koran 77:27
Koran 78:14

And sent down, from the rain clouds, pouring water
Koran 78:14
Koran 79:31

He extracted from it its water and its pasture,…
Koran 79:31
Koran 80:25

How We poured down water in torrents,…
Koran 80:25
Koran 86:11-12

11 By the sky which returns [rain] 12 And [by] the earth which cracks open,…
Koran 86:11-12
Baal Worship
This article: The Religion of Islam – the Re-emergence of Baal Worship, confirms that Allah is Hubal or Baal, the ancient pagan rain god.
Rain, Rain

Rain, rain, go away, come again, another day.
