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O'Fallon, MO

41°F
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O'Fallon

Missouri

41°
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O'Fallon, MO Weather
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Winter Center

Today

 WinterCast Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Red Flag Warning

Today's Weather

Fri, Feb 27

Very warm with plenty of sun Hi: 73°

Tonight: Clear Lo: 34°

Current Weather

12:44 AM

41°F
RealFeel® 44°
Clear More Details
Wind NNW 1 mph
Wind Gusts 2 mph
Air Quality Poor

Looking Ahead

Rain Sunday afternoon will change to snow and accumulate 1-3 inches

WinterCast®

Sunday Evening - Late Sunday Night

Snow

Lasting 10 hours

Ice

Lasting 10 hours

O'Fallon Weather Radar

O'Fallon Weather Radar
Static Radar Temporarily Unavailable
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Clouds
Temperature

Hourly Weather

1 AM 39°
rain drop 0%
2 AM 37°
rain drop 0%
3 AM 35°
rain drop 0%
4 AM 34°
rain drop 0%
5 AM 33°
rain drop 0%
6 AM 31°
rain drop 0%
7 AM 34°
rain drop 0%
8 AM 38°
rain drop 0%
9 AM 43°
rain drop 0%
10 AM 51°
rain drop 0%
11 AM 60°
rain drop 0%
12 PM 66°
rain drop 0%

10-Day Weather Forecast

Today

2/27

73° 34°

Very warm with plenty of sun

Night: Clear
1%

Sat

2/28

63° 26°

A stray afternoon shower

Breezy early; partly cloudy
55%

Sun

3/1

47° 30°

Cloudy and cooler; p.m. rain

Wintry mix, 1-3"
76%

Mon

3/2

48° 39°

Mostly cloudy

Cloudy, rain and drizzle late
25%

Tue

3/3

50° 34°

Cloudy with showers

Cloudy
91%

Wed

3/4

57° 48°

Cloudy, a shower and t-storm

Rain and a thunderstorm late
60%

Thu

3/5

67° 54°

Cloudy, a shower and t-storm

Cloudy with a stray t-storm
61%

Fri

3/6

73° 55°

Cloudy, a couple of t-storms

A thunderstorm around early
65%

Sat

3/7

66° 55°

Cloudy with a few showers

Early rain; mostly cloudy
72%

Sun

3/8

66° 48°

Cloudy with rain tapering off

Clear to partly cloudy
81%

Sun & Moon

11 hrs 15 mins
Rise 6:38 AM
Set 5:53 PM
Waxing Gibbous
Rise 1:44 PM
Set 5:07 AM

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 High 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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