Current Conditions

Collinsville, Illinois

67°F20°C

Light Rain

Wind

E 4 mph6 km/h

Humidity

70%

Cloud Cover

48%

As of Friday, July 24, 2026 at 3:08 AM CDT

Today's Outlook

Day

Overcast and warm, with a high of 75°F24°C and morning low of 68°F20°C. Light wind from the SSE around 3 mph6 km/h. 85% chance of light rain throughout the day.

Night

Mostly cloudy, with a low around 67°F20°C. Light wind from the ESE around 4 mph7 km/h. 65% chance of light rain in the evening.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
FridayJul 24	Light Rain	High 75°F24°C	Low 67°F20°C	Precip 0.17 in4.4 mm85%	Cloud 84%	Wind SE 4 mph6 km/h	Friday: Overcast and warm, with a high of 75°F24°C and morning low of 68°F20°C. Light wind from the SSE around 3 mph6 km/h. 85% chance of light rain throughout the day. Friday Night: Mostly cloudy, with a low around 67°F20°C. Light wind from the ESE around 4 mph7 km/h. 65% chance of light rain in the evening.
SaturdayJul 25	Showers	High 90°F32°CFeels 101°F38°C	Low 69°F21°C	Precip 0.15 in3.9 mm69%	Cloud 57%	Wind S 5 mph7 km/h	Saturday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 70°F21°C — feels like 100°F38°C. Light wind from the SSW around 4 mph7 km/h. 69% chance of showers throughout the day. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 69°F21°C. Light wind from the SSE around 5 mph8 km/h. 56% chance of showers overnight.
SundayJul 26	Drizzle	High 99°F37°CFeels 113°F45°C	Low 78°F25°C	Precip 0.02 in0.5 mm13%	Cloud 47%	Wind SSW 4 mph7 km/h	Sunday: Mostly cloudy and hot, with a high of 99°F37°C and morning low of 78°F26°C — feels like 113°F45°C. Light wind from the WSW around 4 mph6 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 78°F25°C. Light wind from the S around 4 mph7 km/h. 13% chance of drizzle in the evening.
MondayJul 27	Drizzle	High 99°F37°CFeels 108°F42°C	Low 80°F27°C	Precip 0.03 in0.8 mm11%	Cloud 48%	Wind SW 6 mph10 km/h	Monday: Mostly cloudy and hot, with a high of 99°F37°C and morning low of 80°F27°C — feels like 108°F42°C. Breezy from the SW at 6 to 7 mph10 to 12 km/h. 11% chance of drizzle in the morning. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 82°F28°C. Light wind from the SSW around 6 mph10 km/h.
TuesdayJul 28	Drizzle	High 97°F36°CFeels 105°F40°C	Low 80°F27°C	Precip 0.03 in0.8 mm13%	Cloud 33%	Wind NNW 7 mph11 km/h	Tuesday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 80°F27°C — feels like 104°F40°C. Breezy from the NNW at 7 to 8 mph11 to 13 km/h. 12% chance of drizzle in the afternoon. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the NNW at 7 mph11 km/h. 13% chance of drizzle throughout the night.
WednesdayJul 29	Clear	High 94°F34°C	Low 75°F24°C	Precip 0.02 in0.5 mm5%	Cloud 17%	Wind NE 6 mph9 km/h	Wednesday: Mostly clear and hot, with a high of 94°F34°C and morning low of 75°F24°C. Light wind from the NNE around 5 mph9 km/h. Humid. Wednesday Night: Mostly clear, with a low around 77°F25°C. Light wind from the NE around 6 mph9 km/h.
ThursdayJul 30	Clear	High 94°F35°C	Low 73°F23°C	Precip 0.02 in0.5 mm7%	Cloud 23%	Wind E 5 mph8 km/h	Thursday: Partly cloudy and hot, with a high of 94°F35°C and morning low of 73°F23°C. Light wind from the E around 4 mph7 km/h. Thursday Night: Mostly clear, with a low around 75°F24°C. Light wind from the ENE around 5 mph8 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	FridayJul 24	75°F24°C	67°F20°C	0.17 in4.4 mm· 85%	84%	Light Rain	SE 4 mph6 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 68°F20°C. Light wind from the SSE around 3 mph6 km/h. 85% chance of light rain throughout the day. NightMostly cloudy, with a low around 67°F20°C. Light wind from the ESE around 4 mph7 km/h. 65% chance of light rain in the evening.
	SaturdayJul 25	90°F32°C Feels 101°F38°C	69°F21°C	0.15 in3.9 mm· 69%	57%	Showers	S 5 mph7 km/h
DayMostly cloudy and hot, with a high of 90°F32°C and morning low of 70°F21°C — feels like 100°F38°C. Light wind from the SSW around 4 mph7 km/h. 69% chance of showers throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 69°F21°C. Light wind from the SSE around 5 mph8 km/h. 56% chance of showers overnight.
	SundayJul 26	99°F37°C Feels 113°F45°C	78°F25°C	0.02 in0.5 mm· 13%	47%	Drizzle	SSW 4 mph7 km/h
DayMostly cloudy and hot, with a high of 99°F37°C and morning low of 78°F26°C — feels like 113°F45°C. Light wind from the WSW around 4 mph6 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F25°C. Light wind from the S around 4 mph7 km/h. 13% chance of drizzle in the evening.
	MondayJul 27	99°F37°C Feels 108°F42°C	80°F27°C	0.03 in0.8 mm· 11%	48%	Drizzle	SW 6 mph10 km/h
DayMostly cloudy and hot, with a high of 99°F37°C and morning low of 80°F27°C — feels like 108°F42°C. Breezy from the SW at 6 to 7 mph10 to 12 km/h. 11% chance of drizzle in the morning. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Light wind from the SSW around 6 mph10 km/h.
	TuesdayJul 28	97°F36°C Feels 105°F40°C	80°F27°C	0.03 in0.8 mm· 13%	33%	Drizzle	NNW 7 mph11 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 80°F27°C — feels like 104°F40°C. Breezy from the NNW at 7 to 8 mph11 to 13 km/h. 12% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Breezy from the NNW at 7 mph11 km/h. 13% chance of drizzle throughout the night.
	WednesdayJul 29	94°F34°C	75°F24°C	0.02 in0.5 mm· 5%	17%	Clear	NE 6 mph9 km/h
DayMostly clear and hot, with a high of 94°F34°C and morning low of 75°F24°C. Light wind from the NNE around 5 mph9 km/h. Humid. NightMostly clear, with a low around 77°F25°C. Light wind from the NE around 6 mph9 km/h.
	ThursdayJul 30	94°F35°C	73°F23°C	0.02 in0.5 mm· 7%	23%	Clear	E 5 mph8 km/h
DayPartly cloudy and hot, with a high of 94°F35°C and morning low of 73°F23°C. Light wind from the E around 4 mph7 km/h. NightMostly clear, with a low around 75°F24°C. Light wind from the ENE around 5 mph8 km/h.
	FridayJul 31	92°F33°C	74°F24°C	0.11 in2.8 mm· 19%	46%	Drizzle	SSE 5 mph8 km/h
DayMostly cloudy and hot, with a high of 92°F33°C and morning low of 74°F24°C. Light wind from the S around 5 mph8 km/h. 19% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 76°F24°C. Light wind from the SE around 5 mph8 km/h. 18% chance of drizzle throughout the night.
	SaturdayAug 1	92°F33°C	74°F23°C	0.13 in3.2 mm· 20%	42%	Showers	NNW 5 mph8 km/h
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 74°F23°C. Light wind from the NNW around 5 mph9 km/h. 14% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Light wind from the N around 5 mph8 km/h. 20% chance of showers throughout the night.
	SundayAug 2	92°F33°C	72°F22°C	0.04 in1.1 mm· 12%	34%	Drizzle	N 5 mph8 km/h
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 72°F22°C. Light wind from the NNW around 5 mph8 km/h. 11% chance of drizzle in the afternoon. Humid. NightPartly cloudy, with a low around 74°F23°C. Light wind from the NNE around 5 mph8 km/h. 12% chance of drizzle throughout the night.
	MondayAug 3	92°F33°C	72°F22°C	0.04 in1.1 mm· 12%	39%	Drizzle	SSE 6 mph9 km/h
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 72°F22°C. Light wind from the S around 5 mph9 km/h. Humid. NightPartly cloudy, with a low around 73°F23°C. Light wind from the SSE around 6 mph9 km/h. 12% chance of drizzle throughout the night.
	TuesdayAug 4	91°F33°C	74°F23°C	0.09 in2.4 mm· 21%	50%	Showers	SSW 6 mph10 km/h
DayMostly cloudy and hot, with a high of 91°F33°C and morning low of 74°F23°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 16% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Light wind from the S around 6 mph10 km/h. 21% chance of drizzle throughout the night.
	WednesdayAug 5	89°F32°C	73°F23°C	0.14 in3.6 mm· 20%	49%	Showers	SW 6 mph10 km/h
DayMostly cloudy and hot, with a high of 89°F32°C and morning low of 73°F23°C. Light wind from the WSW around 6 mph10 km/h. 20% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 74°F23°C. Light wind from the SSW around 6 mph9 km/h. 20% chance of showers throughout the night.
	ThursdayAug 6	90°F32°C	72°F22°C	0.1 in2.6 mm· 20%	45%	Drizzle	SSW 6 mph9 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 72°F22°C. Light wind from the SW around 6 mph9 km/h. 13% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 72°F22°C. Light wind from the S around 6 mph9 km/h. 20% chance of drizzle throughout the night.
	FridayAug 7	90°F32°C	71°F22°C	0.12 in3 mm· 16%	43%	Showers	SSW 6 mph9 km/h
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 71°F22°C. Light wind from the SW around 6 mph9 km/h. 16% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 73°F23°C. Light wind from the S around 6 mph9 km/h. 15% chance of drizzle throughout the night.

Nearby Cities

Fairview Heights6 mi9 km O'Fallon7 mi11 km Granite City9 mi15 km East Saint Louis10 mi15 km Edwardsville10 mi16 km Belleville10 mi17 km

About This Forecast

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Coordinates: 38.6703°N, 89.9845°W·Elevation: 171m·Timezone: America/Chicago·Population: 24,754