O'Fallon, MO Weather Forecast

Today's Weather

Fri, Jun 26

Cloudy and not as warm but humid with showers and thunderstorms, some heavy; thunderstorms can bring flooding downpours, hail and damaging wind gusts Hi: 77°

Tonight: An evening thunderstorm; otherwise, cloudy and humid Lo: 69°

Current Weather

3:56 PM

MINUTECAST®

Rain starting in 33 min

Now

4:56 PM

Looking Ahead

Rounds of heavy rain and thunderstorms through Friday can cause flooding, which could be significant in some areas

O'Fallon Weather Radar

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Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Today

6/26

77° 69°

Heavy t-storms; not as warm

Night: Humid; a t-storm this evening

99%

Sat

6/27

82° 73°

Humid with a thunderstorm

Humid with a t-storm in spots

55%

Sun

6/28

95° 74°

Partly sunny and humid

Clear and humid

Mon

6/29

95° 74°

Sunshine and hot

Mainly clear and humid

Tue

6/30

97° 73°

Hazy sun and sweltering heat

Clear and humid

13%

Wed

7/1

96° 73°

Hazy sun and hot

A crystal-clear sky and humid

14%

Thu

7/2

96° 72°

A stray t-storm; hot, humid

Mainly clear and humid

55%

Fri

7/3

95° 75°

Hot; a p.m. t-storm or two

A thunderstorm around early

65%

Sat

7/4

92° 71°

A shower possible; hot, humid

Mainly clear and humid

30%

Sun

7/5

90° 72°

Humid with a stray t-storm

Rain and a thunderstorm late

55%

Sun & Moon

14 hrs 53 mins

Rise 5:39 AM

Set 8:32 PM

Waxing Gibbous

Rise 6:10 PM

Set 3:22 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.