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O'Fallon, MO

79°F
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O'Fallon

Missouri

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O'Fallon, MO Weather
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Winter Center

Today

 Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Today's Weather

Thu, Jul 16

Humid with partial sunshine; a heavy thunderstorm in the afternoon; there can be ponding on roadways Hi: 86°

Tonight: A thunderstorm in spots early in the evening; otherwise, mostly cloudy and humid Lo: 72°

Current Weather

12:41 AM

79°F
RealFeel® 88°
Mostly clear More Details
Wind N 1 mph
Wind Gusts 1 mph
Air Quality Poor

Looking Ahead

Watch for a heavy thunderstorm this afternoon

O'Fallon Weather Radar

O'Fallon Weather Radar
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Clouds
Temperature

Hourly Weather

1 AM 76°
rain drop 1%
2 AM 75°
rain drop 2%
3 AM 74°
rain drop 2%
4 AM 73°
rain drop 2%
5 AM 72°
rain drop 2%
6 AM 73°
rain drop 2%
7 AM 73°
rain drop 3%
8 AM 76°
rain drop 5%
9 AM 78°
rain drop 5%
10 AM 81°
rain drop 6%
11 AM 83°
rain drop 7%
12 PM 84°
rain drop 7%

10-Day Weather Forecast

Today

7/16

86° 72°

A heavy t-storm in the p.m.

Night: Humid; a t-storm around early
55%

Fri

7/17

86° 72°

A shower and t-storm; humid

Humid with a t-storm or two
88%

Sat

7/18

91° 75°

Mostly sunny and humid

Mainly clear and humid
25%

Sun

7/19

90° 73°

Humid; a stray p.m. t-storm

A crystal-clear sky and humid
55%

Mon

7/20

94° 73°

Partly sunny, hot and humid

Mainly clear and humid
16%

Tue

7/21

87° 67°

Partly sunny

Mainly clear
5%

Wed

7/22

85° 65°

Abundant sunshine

Partly cloudy
3%

Thu

7/23

86° 66°

Cloudy, a shower in the p.m.

A thunderstorm around early
59%

Fri

7/24

88° 66°

Sunny

Mainly clear and humid
5%

Sat

7/25

89° 67°

Sun through high clouds

Becoming cloudy
0%

Sun & Moon

14 hrs 36 mins
Rise 5:51 AM
Set 8:27 PM
Waxing Crescent
Rise 8:23 AM
Set 10:12 PM

Air Quality

See More
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.

Allergy Outlook

See All
Tree Pollen Low Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander Extreme Data is not supported in this location

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World North America United States Missouri O'Fallon

Weather Near O'Fallon:

  • St. Charles, MO
  • St. Louis, MO
  • St. Peters, MO
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