O'Fallon, MO Weather Forecast

Today's Weather

Wed, Aug 5

Intervals of clouds and sunshine with a heavy thunderstorm late this afternoon; thunderstorms can bring localized damaging wind gusts Hi: 89°

Tonight: Partly cloudy with a couple of showers and a heavy thunderstorm; storms can bring flooding downpours and localized damaging wind gusts Lo: 71°

Current Weather

7:00 AM

71°F

RealFeel® 77°

Partly sunny More Details

Looking Ahead

Thunderstorms, some heavy, late this afternoon through tomorrow morning

O'Fallon Weather Radar

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Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Today

8/5

89° 71°

A heavy t-storm in the p.m.

Night: Showers and a heavier t-storm

55%

Thu

8/6

81° 69°

Rain and a thunderstorm

Some clouds, a stray t-storm

93%

Fri

8/7

84° 70°

Humid with a t-storm in spots

An evening t-storm in spots

55%

Sat

8/8

89° 71°

Mostly sunny and humid

Mainly clear and humid

10%

Sun

8/9

93° 70°

Partly sunny and humid

Clear and humid

25%

Mon

8/10

96° 71°

Partly sunny; hot and humid

Mainly clear and humid

12%

Tue

8/11

93° 72°

Sunny; hot and humid

Humid; a strong t-storm late

25%

Wed

8/12

89° 69°

A thunderstorm in spots

Humid with thunderstorms late

55%

Thu

8/13

88° 68°

A couple of morning showers

Mainly clear and humid

69%

Fri

8/14

88° 67°

Showers around in the morning

Periods of rain

55%

Sun & Moon

14 hrs 03 mins

Rise 6:07 AM

Set 8:10 PM

Last Quarter

Rise 11:36 PM

Set 2:44 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.