O'Fallon, IL Weather Forecast

Today's Weather

Thu, Apr 2

Cloudy, becoming windier and warmer with a couple of showers and a heavy thunderstorm, especially late; thunderstorms can bring hail and damaging winds Hi: 75°

Tonight: An evening thunderstorm in spots; otherwise, mostly cloudy and warm Lo: 63°

Current Weather

3:06 AM

55°F

RealFeel® 55°

Mostly cloudy More Details

Wind ESE 4 mph

Wind Gusts 8 mph

Air Quality Fair

Looking Ahead

Thunderstorms, some strong, late this morning through this afternoon; storms can bring hail and damaging winds

O'Fallon Weather Radar

Static Radar Temporarily Unavailable

Thank you for your patience as we work to get everything up and running again.

Refresh Page

Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Today

4/2

75° 63°

Thunderstorms

Night: A stray t-storm this evening

88%

Fri

4/3

80° 57°

A thunderstorm in spots

Periods of rain and a t-storm

55%

Sat

4/4

65° 40°

Heavy rain and a thunderstorm

Becoming clear and cooler

80%

Sun

4/5

60° 39°

Plenty of sun

Clear

Mon

4/6

67° 42°

Mostly sunny

Rain and drizzle late

18%

Tue

4/7

64° 41°

Considerable cloudiness

Cloudy most of the time

25%

Wed

4/8

75° 51°

Decreasing clouds

Clear

Thu

4/9

78° 50°

Sunny and very warm

Mainly clear

Fri

4/10

72° 55°

Some sun with a shower

A bit of late-night rain

55%

Sat

4/11

72° 57°

Cloudy with a bit of rain

Periods of rain

55%

Sun & Moon

12 hrs 41 mins

Rise 6:43 AM

Set 7:24 PM

Waning Gibbous

Rise 8:22 PM

Set 7:07 AM

Air Quality

Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.