O'Fallon, IL Weather Forecast

Today's Weather

Wed, Mar 4

Periods of rain, some heavy, and a thunderstorm; breezy this afternoon; thunderstorms can bring localized damaging wind gusts, hail and flooding downpours Hi: 58°

Tonight: Cloudy with a couple of showers and a heavy thunderstorm; storms can bring flooding downpours, hail, damaging wind gusts, and tornadoes Lo: 56°

Current Weather

1:46 PM

MINUTECAST®

Heavy rain and a thunderstorm for at least 60 min

Now

2:46 PM

Looking Ahead

Rain, some heavy, and thunderstorms to affect the area from this afternoon into late tonight

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

3/4

58° 56°

Heavy rain and a thunderstorm

Night: Showers and a heavier t-storm

98%

Thu

3/5

68° 56°

A t-storm around in the a.m.

Some clouds, a t-storm late

55%

Fri

3/6

79° 62°

A t-storm around in the a.m.

Cloudy, heavy t-storms late

55%

Sat

3/7

64° 36°

Cooler; a shower in the a.m.

Some clouds; cooler

55%

Sun

3/8

68° 48°

Times of clouds and sun

Partly cloudy

12%

Mon

3/9

80° 62°

Breezy in the afternoon

Partly cloudy and warm

24%

Tue

3/10

76° 52°

Mostly cloudy and warm

Cloudy, heavy t-storms; windy

25%

Wed

3/11

58° 31°

Cooler; morning showers

Clear and much colder

80%

Thu

3/12

49° 39°

Clouds and sun

Clear

Fri

3/13

57° 35°

A little afternoon rain

Mainly clear

55%

Sun & Moon

11 hrs 28 mins

Rise 6:28 AM

Set 5:56 PM

Waning Gibbous

Rise 7:30 PM

Set 7:17 AM

Air Quality

Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.