O'Fallon, MO Weather Forecast

Today's Weather

Mon, Apr 27

A t-shower in spots in the a.m., windy, humid; a few p.m. t-storms, some severe; there is a significant risk for damaging wind gusts, tornadoes and large hail Hi: 83°

Tonight: A severe thunderstorm early; breezy early; otherwise, turning clear; storms can bring flooding downpours, hail, damaging wind gusts, and an isolated tornado Lo: 51°

Current Weather

1:36 AM

MINUTECAST®

Heavy rain and a thunderstorm for at least 60 min

Now

2:36 AM

Looking Ahead

A tornado outbreak along with large hail and damaging winds can occur Monday and Monday night

O'Fallon Weather Radar

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Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Today

4/27

83° 51°

A few t-storms, some severe

Night: A severe evening thunderstorm

90%

Tue

4/28

68° 49°

Cooler; a stray p.m. t-shower

A couple of evening showers

55%

Wed

4/29

67° 43°

Mostly sunny

Mainly clear and chilly

18%

Thu

4/30

67° 44°

Times of clouds and sun

Mostly cloudy and chilly

16%

Fri

5/1

62° 39°

Mostly cloudy and cool

Partly cloudy and chilly

25%

Sat

5/2

64° 45°

Partly sunny

Partly cloudy and chilly

Sun

5/3

73° 48°

Clouds and sunshine

Mainly clear

Mon

5/4

78° 53°

Sun and clouds with a shower

Partly cloudy

55%

Tue

5/5

69° 48°

Cloudy with a stray shower

Rain

55%

Wed

5/6

67° 50°

An a.m. shower; partly sunny

Mainly clear

49%

Sun & Moon

13 hrs 41 mins

Rise 6:10 AM

Set 7:51 PM

Waxing Gibbous

Rise 4:11 PM

Set 4:28 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.