O'Fallon, MO Weather Forecast

Tonight's Weather

Tue, Jun 16

Partly cloudy Lo: 59°

Tomorrow: Partly sunny and windy; a severe thunderstorm late in the afternoon; storms can bring flash flooding, hail, damaging winds, and even a tornado Hi: 91°

Current Weather

8:18 PM

Looking Ahead

Thunderstorms, some severe, late tomorrow afternoon through tomorrow evening

O'Fallon Weather Radar

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Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Tonight

6/16

59° Lo

Partly cloudy

10%

Wed

6/17

91° 65°

A severe p.m. t-storm; windy

Night: Heavy evening t-storms; humid

56%

Thu

6/18

78° 58°

Partly sunny and less humid

Partly cloudy with a shower

23%

Fri

6/19

85° 63°

Mostly sunny

Partly cloudy

Sat

6/20

85° 68°

Times of clouds and sun

Strong late-night t-storms

25%

Sun

6/21

81° 67°

Cloudy, heavy t-storms; humid

Strong late-night t-storms

96%

Mon

6/22

78° 62°

Some rain and a thunderstorm

Partly cloudy

60%

Tue

6/23

79° 65°

Sunshine

A crystal-clear sky

Wed

6/24

80° 63°

A blend of sun and clouds

A thundershower in spots late

Thu

6/25

82° 65°

A couple of thunderstorms

A thunderstorm in spots late

58%

Sun & Moon

14 hrs 53 mins

Rise 5:37 AM

Set 8:30 PM

Waxing Crescent

Rise 6:58 AM

Set 10:34 PM

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.