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O'Fallon, MO

8°F
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O'Fallon

Missouri

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O'Fallon, MO Weather
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Winter Center

Today

 Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Cold Weather Advisory

Today's Weather

Sun, Dec 14

Frigid with plenty of sunshine; coldest day since last winter Hi: 17°

Tonight: Clear and cold Lo: 12°

Current Weather

5:43 AM

8°F
RealFeel® -5°
Clear More Details
Wind NW 9 mph
Wind Gusts 23 mph
Air Quality Excellent

Looking Ahead

Warmer weather on the way next week

O'Fallon Weather Radar

O'Fallon Weather Radar
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Clouds
Temperature

Hourly Weather

6 AM 6°
rain drop 0%
7 AM 5°
rain drop 0%
8 AM 5°
rain drop 0%
9 AM 5°
rain drop 0%
10 AM 7°
rain drop 0%
11 AM 10°
rain drop 0%
12 PM 12°
rain drop 0%
1 PM 14°
rain drop 0%
2 PM 15°
rain drop 0%
3 PM 17°
rain drop 0%
4 PM 16°
rain drop 0%
5 PM 15°
rain drop 0%

10-Day Weather Forecast

Today

12/14

17° 12°

Sunny, but frigid

Night: Clear and cold
0%

Mon

12/15

47° 27°

Breezy and not as cold

Mainly clear
0%

Tue

12/16

55° 34°

Brilliant sunshine

Partly cloudy
2%

Wed

12/17

54° 43°

Times of clouds and sun

Windy; a few showers late
12%

Thu

12/18

55° 21°

Rain; cooler in the morning

Mainly clear and much colder
91%

Fri

12/19

42° 37°

Times of clouds and sun

Partly cloudy
6%

Sat

12/20

59° 34°

Sun through high clouds

Partly cloudy
0%

Sun

12/21

48° 35°

High clouds and cooler

Partly cloudy
1%

Mon

12/22

54° 37°

Cloudy, a shower in the p.m.

Cloudy with a little rain
40%

Tue

12/23

56° 39°

Rain and drizzle possible

Low clouds
30%

Sun & Moon

9 hrs 29 mins
Rise 7:13 AM
Set 4:42 PM
Waning Crescent
Rise 2:15 AM
Set 1:14 PM

Air Quality

See More
Air Quality Excellent

The air quality is ideal for most individuals; enjoy your normal outdoor activities.

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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