Current Conditions

O'Fallon, Illinois

60°F16°C

Medium chance of drizzle

There is a medium chance of drizzle. Temperatures will hold near 60°F. Cloudy, with a breeze from the SW at 10 mph.There is a medium chance of drizzle. Temperatures will hold near 16°C. Cloudy, with a breeze from the SW at 16 km/h.

Wind

SW 10 mph15 km/h

Humidity

100%

Cloud Cover

61%

As of Wednesday, November 4, 2026 at 2:11 AM CST

Today's Outlook

Day

Cloudy. Temperatures will hold near 58°F. A breeze from the WSW at 9–10 mph.Cloudy. Temperatures will hold near 14°C. A breeze from the WSW at 14–16 km/h.

Night

A breeze from the SW at 8 mph. Temperatures will range from 45°F to 57°F. Clear.A breeze from the SW at 13 km/h. Temperatures will range from 7°C to 14°C. Clear.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Medium chance of drizzle	High 63°F17°C	Low 51°F11°C	Precip 0.13 in3.3 mm98%	Cloud 80%	Wind WSW 9 mph14 km/h	Cloudy. Temperatures will hold near 58°F. A breeze from the WSW at 9–10 mph.Cloudy. Temperatures will hold near 14°C. A breeze from the WSW at 14–16 km/h.A breeze from the SW at 8 mph. Temperatures will range from 45°F to 57°F. Clear.A breeze from the SW at 13 km/h. Temperatures will range from 7°C to 14°C. Clear.
Breeze	High 61°F16°C	Low 45°F7°CFeels 41°F5°C	Precip 0 in0 mm—	Cloud 24%	Wind W 8 mph13 km/h	A breeze from the WSW at 9–10 mph. Temperatures will range from 45°F to 61°F. Clear.A breeze from the WSW at 14–16 km/h. Temperatures will range from 7°C to 16°C. Clear.A breeze from the NW at 8–9 mph. Temperatures will range from 50°F to 58°F. Mostly cloudy.A breeze from the NW at 13–14 km/h. Temperatures will range from 10°C to 14°C. Mostly cloudy.
Cloudy	High 52°F11°C	Low 42°F5°CFeels 37°F3°C	Precip 0 in0 mm—	Cloud 91%	Wind NNW 9 mph14 km/h	Cloudy. Temperatures will hold near 50°F. A breeze from the NNW at 9–10 mph.Cloudy. Temperatures will hold near 10°C. A breeze from the NNW at 14–16 km/h.Cloudy. Temperatures will range from 35°F to 48°F. A breeze from the N at 8 mph.Cloudy. Temperatures will range from 2°C to 9°C. A breeze from the N at 13 km/h.
Partly cloudy	High 49°F9°C	Low 35°F2°CFeels 31°F-1°C	Precip 0 in0 mm—	Cloud 49%	Wind NNW 5 mph8 km/h	Partly cloudy. Temperatures will range from 35°F to 49°F.Partly cloudy. Temperatures will range from 2°C to 9°C.Mostly clear. Temperatures will range from 33°F to 46°F, feeling as cold as 27°F.Mostly clear. Temperatures will range from 1°C to 8°C, feeling as cold as -3°C.
Clear	High 55°F13°C	Low 33°F0°CFeels 27°F-3°C	Precip 0 in0 mm—	Cloud 8%	Wind WSW 6 mph10 km/h	Clear. Temperatures will range from 33°F to 55°F, feeling as cold as 27°F.Clear. Temperatures will range from 1°C to 13°C, feeling as cold as -3°C.Clear. Temperatures will range from 35°F to 52°F.Clear. Temperatures will range from 2°C to 11°C.
Breeze	High 62°F17°C	Low 35°F2°CFeels 31°F-1°C	Precip 0 in0 mm—	Cloud 3%	Wind SW 6 mph10 km/h	Clear. Temperatures will range from 35°F to 62°F.Clear. Temperatures will range from 2°C to 17°C.A breeze from the WSW at 8 mph. Temperatures will range from 41°F to 58°F, feeling as cold as 36°F. Clear.A breeze from the WSW at 13 km/h. Temperatures will range from 5°C to 14°C, feeling as cold as 2°C. Clear.
Breeze	High 63°F17°C	Low 41°F5°CFeels 36°F2°C	Precip 0 in0 mm—	Cloud 14%	Wind W 6 mph10 km/h	Mostly clear. Temperatures will range from 41°F to 63°F, feeling as cold as 36°F.Mostly clear. Temperatures will range from 5°C to 17°C, feeling as cold as 2°C.Mostly clear. Temperatures will range from 40°F to 59°F.Mostly clear. Temperatures will range from 4°C to 15°C.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdayNov 4	63°F17°C	51°F11°C	0.13 in3.3 mm· 98%	80%	Medium chance of drizzle	WSW 9 mph14 km/h
DayCloudy. Temperatures will hold near 58°F. A breeze from the WSW at 9–10 mph.Cloudy. Temperatures will hold near 14°C. A breeze from the WSW at 14–16 km/h. NightA breeze from the SW at 8 mph. Temperatures will range from 45°F to 57°F. Clear.A breeze from the SW at 13 km/h. Temperatures will range from 7°C to 14°C. Clear.
	ThursdayNov 5	61°F16°C	45°F7°C Feels 41°F5°C	0 in0 mm· —	24%	Breeze	W 8 mph13 km/h
DayA breeze from the WSW at 9–10 mph. Temperatures will range from 45°F to 61°F. Clear.A breeze from the WSW at 14–16 km/h. Temperatures will range from 7°C to 16°C. Clear. NightA breeze from the NW at 8–9 mph. Temperatures will range from 50°F to 58°F. Mostly cloudy.A breeze from the NW at 13–14 km/h. Temperatures will range from 10°C to 14°C. Mostly cloudy.
	FridayNov 6	52°F11°C	42°F5°C Feels 37°F3°C	0 in0 mm· —	91%	Cloudy	NNW 9 mph14 km/h
DayCloudy. Temperatures will hold near 50°F. A breeze from the NNW at 9–10 mph.Cloudy. Temperatures will hold near 10°C. A breeze from the NNW at 14–16 km/h. NightCloudy. Temperatures will range from 35°F to 48°F. A breeze from the N at 8 mph.Cloudy. Temperatures will range from 2°C to 9°C. A breeze from the N at 13 km/h.
	SaturdayNov 7	49°F9°C	35°F2°C Feels 31°F-1°C	0 in0 mm· —	49%	Partly cloudy	NNW 5 mph8 km/h
DayPartly cloudy. Temperatures will range from 35°F to 49°F.Partly cloudy. Temperatures will range from 2°C to 9°C. NightMostly clear. Temperatures will range from 33°F to 46°F, feeling as cold as 27°F.Mostly clear. Temperatures will range from 1°C to 8°C, feeling as cold as -3°C.
	SundayNov 8	55°F13°C	33°F0°C Feels 27°F-3°C	0 in0 mm· —	8%	Clear	WSW 6 mph10 km/h
DayClear. Temperatures will range from 33°F to 55°F, feeling as cold as 27°F.Clear. Temperatures will range from 1°C to 13°C, feeling as cold as -3°C. NightClear. Temperatures will range from 35°F to 52°F.Clear. Temperatures will range from 2°C to 11°C.
	MondayNov 9	62°F17°C	35°F2°C Feels 31°F-1°C	0 in0 mm· —	3%	Breeze	SW 6 mph10 km/h
DayClear. Temperatures will range from 35°F to 62°F.Clear. Temperatures will range from 2°C to 17°C. NightA breeze from the WSW at 8 mph. Temperatures will range from 41°F to 58°F, feeling as cold as 36°F. Clear.A breeze from the WSW at 13 km/h. Temperatures will range from 5°C to 14°C, feeling as cold as 2°C. Clear.
	TuesdayNov 10	63°F17°C	41°F5°C Feels 36°F2°C	0 in0 mm· —	14%	Breeze	W 6 mph10 km/h
DayMostly clear. Temperatures will range from 41°F to 63°F, feeling as cold as 36°F.Mostly clear. Temperatures will range from 5°C to 17°C, feeling as cold as 2°C. NightMostly clear. Temperatures will range from 40°F to 59°F.Mostly clear. Temperatures will range from 4°C to 15°C.
	WednesdayNov 11	62°F17°C	40°F5°C Feels 36°F2°C	0.01 in0.2 mm· 3%	24%	Mostly clear	NNW 6 mph10 km/h
DayMostly clear. Temperatures will range from 40°F to 62°F.Mostly clear. Temperatures will range from 4°C to 17°C. NightA breeze from the N at 7 mph. Temperatures will range from 40°F to 58°F. Mostly clear.A breeze from the N at 11 km/h. Temperatures will range from 4°C to 14°C. Mostly clear.
	ThursdayNov 12	59°F15°C	40°F5°C Feels 36°F2°C	0.02 in0.4 mm· 4%	30%	Breeze	N 7 mph11 km/h
DayMostly clear. Temperatures will range from 40°F to 59°F.Mostly clear. Temperatures will range from 4°C to 15°C. NightA breeze from the NNE at 7–8 mph, and there is a marginal chance of drizzle before dawn. Temperatures will range from 39°F to 55°F, feeling as cold as 34°F. Mostly clear.A breeze from the NNE at 11–13 km/h, and there is a marginal chance of drizzle before dawn. Temperatures will range from 4°C to 13°C, feeling as cold as 1°C. Mostly clear.
	FridayNov 13	59°F15°C	39°F4°C Feels 34°F1°C	0.02 in0.4 mm· 5%	33%	Breeze	NNW 7 mph11 km/h
DayMostly clear. Temperatures will range from 39°F to 59°F. There is a marginal chance of drizzle around midday.Mostly clear. Temperatures will range from 4°C to 15°C. There is a marginal chance of drizzle around midday. NightA breeze from the SSW at 7–8 mph, and there is a marginal chance of showers overnight. Temperatures will range from 40°F to 55°F. Mostly clear.A breeze from the SSW at 11–13 km/h, and there is a marginal chance of showers overnight. Temperatures will range from 4°C to 13°C. Mostly clear.
	SaturdayNov 14	60°F16°C	40°F5°C Feels 36°F2°C	0.04 in1.1 mm· 7%	37%	Breeze	WSW 7 mph11 km/h
DayA breeze from the WSW at 7 mph, and there is a marginal chance of showers around midday. Temperatures will range from 41°F to 60°F. Mostly clear.A breeze from the WSW at 11 km/h, and there is a marginal chance of showers around midday. Temperatures will range from 5°C to 16°C. Mostly clear. NightA breeze from the SW at 7–8 mph, and there is a marginal chance of showers for much of the night. Temperatures will range from 42°F to 57°F. Mostly clear.A breeze from the SW at 11–13 km/h, and there is a marginal chance of showers for much of the night. Temperatures will range from 6°C to 14°C. Mostly clear.
	SundayNov 15	61°F16°C	42°F6°C Feels 38°F4°C	0.03 in0.7 mm· 8%	39%	Breeze	SW 7 mph11 km/h
DayA breeze from the SSW at 7 mph. Temperatures will range from 43°F to 61°F. Partly cloudy.A breeze from the SSW at 11 km/h. Temperatures will range from 6°C to 16°C. Partly cloudy. NightA breeze from the S at 7–8 mph, and there is a marginal chance of showers before dawn. Temperatures will range from 45°F to 58°F. Partly cloudy.A breeze from the S at 11–13 km/h, and there is a marginal chance of showers before dawn. Temperatures will range from 7°C to 14°C. Partly cloudy.
	MondayNov 16	61°F16°C	45°F7°C Feels 41°F5°C	0.04 in1.1 mm· 8%	45%	Breeze	S 8 mph12 km/h
DayA breeze from the S at 8 mph, and there is a marginal chance of showers throughout the day. Temperatures will range from 45°F to 61°F. Partly cloudy.A breeze from the S at 13 km/h, and there is a marginal chance of showers throughout the day. Temperatures will range from 7°C to 16°C. Partly cloudy. NightA breeze from the SSE at 8 mph, and there is a marginal chance of showers throughout the night. Temperatures will range from 45°F to 58°F. Partly cloudy.A breeze from the SSE at 13 km/h, and there is a marginal chance of showers throughout the night. Temperatures will range from 7°C to 14°C. Partly cloudy.
	TuesdayNov 17	60°F16°C	45°F7°C Feels 41°F5°C	0.09 in2.4 mm· 15%	52%	Low chance of showers	S 8 mph13 km/h
DayThere is a low chance of showers in the morning. Temperatures will range from 46°F to 60°F. Partly cloudy, with a breeze from the S at 8 mph.There is a low chance of showers in the morning. Temperatures will range from 8°C to 16°C. Partly cloudy, with a breeze from the S at 13 km/h. NightThere is a low chance of showers before dawn. Temperatures will range from 47°F to 58°F. Partly cloudy, with a breeze from the S at 8 mph.There is a low chance of showers before dawn. Temperatures will range from 8°C to 14°C. Partly cloudy, with a breeze from the S at 13 km/h.
	WednesdayNov 18	60°F15°C	47°F8°C Feels 43°F6°C	0.13 in3.3 mm· 17%	61%	Low chance of showers	SSW 8 mph13 km/h
DayThere is a low chance of showers throughout the day. Temperatures will range from 47°F to 60°F. Partly cloudy, with a breeze from the SSW at 8 mph.There is a low chance of showers throughout the day. Temperatures will range from 8°C to 16°C. Partly cloudy, with a breeze from the SSW at 13 km/h. NightThere is a low chance of showers throughout the night. Temperatures will hold near 59°F. Mostly cloudy, with a breeze from the SSW at 8 mph.There is a low chance of showers throughout the night. Temperatures will hold near 15°C. Mostly cloudy, with a breeze from the SSW at 13 km/h.

Nearby Cities

Fairview Heights4 mi7 km Belleville6 mi10 km Collinsville7 mi11 km East Saint Louis13 mi21 km Granite City15 mi24 km Edwardsville15 mi25 km

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Coordinates: 38.5923°N, 89.9112°W·Elevation: 167m·Timezone: America/Chicago·Population: 29,002