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O'Fallon, IL

37°F
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O'Fallon

Illinois

37°
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O'Fallon, IL Weather
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Winter Center

Today

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

Today's Weather

Fri, Feb 27

Warmer with plenty of sun Hi: 74°

Tonight: Clear Lo: 37°

Current Weather

2:50 AM

37°F
RealFeel® 40°
Clear More Details
Wind WNW 2 mph
Wind Gusts 4 mph
Air Quality Poor

Looking Ahead

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

WinterCast®

Sunday Evening - Late Sunday Night

Snow

Lasting 12 hours

Ice

Lasting 12 hours

O'Fallon Weather Radar

O'Fallon Weather Radar
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Clouds
Temperature

Hourly Weather

3 AM 37°
rain drop 0%
4 AM 36°
rain drop 0%
5 AM 34°
rain drop 0%
6 AM 33°
rain drop 0%
7 AM 38°
rain drop 0%
8 AM 41°
rain drop 0%
9 AM 49°
rain drop 0%
10 AM 57°
rain drop 0%
11 AM 63°
rain drop 0%
12 PM 68°
rain drop 0%
1 PM 71°
rain drop 0%
2 PM 74°
rain drop 0%

10-Day Weather Forecast

Today

2/27

74° 37°

Warmer with plenty of sun

Night: Clear
0%

Sat

2/28

66° 26°

A p.m. shower in places

Mostly cloudy
49%

Sun

3/1

47° 34°

Cloudy and cooler; p.m. rain

Rain, snow, sleet, 1-3"
70%

Mon

3/2

46° 41°

Cloudy

Rain and drizzle early
25%

Tue

3/3

53° 38°

A couple of morning showers

Cloudy
82%

Wed

3/4

60° 52°

Cloudy, a shower and t-storm

Cloudy with showers
60%

Thu

3/5

67° 55°

Cloudy, a shower and t-storm

Cloudy, a shower and t-storm
66%

Fri

3/6

75° 56°

Cloudy, a couple of t-storms

An evening shower
64%

Sat

3/7

68° 57°

Continued cloudy and windy

Early rain; otherwise, cloudy
25%

Sun

3/8

74° 59°

An afternoon shower in spots

Cloudy with a shower late
49%

Sun & Moon

11 hrs 15 mins
Rise 6:35 AM
Set 5:50 PM
Waxing Gibbous
Rise 1:42 PM
Set 5:03 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 Illinois O'Fallon

Weather Near O'Fallon:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
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