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March to start with snow in parts of the U.S. See the forecast. Chevron right
Severe weather risk to increase as weather pattern shifts in March. Get the forecast details. Chevron right

O'Fallon, IL

34°F
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O'Fallon

Illinois

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O'Fallon, IL Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center

Today

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

Today's Weather

Mon, Mar 2

Periods of rain and drizzle early this morning; cloudy and chilly Hi: 46°

Tonight: Cloudy with a couple of showers late Lo: 40°

Current Weather

1:22 AM

34°F
RealFeel® 29°
Light rain More Details
Wind ENE 5 mph
Wind Gusts 12 mph
Air Quality Fair

MINUTECAST®

Rain for at least 60 min

Now
2:22 AM

Looking Ahead

Rounds of thunderstorms beginning toward midweek will bring an increased risk of flash flooding

WinterCast®

Started
Late Sunday Night

Snow

Ending in 2 hours

Ice

Lasting 1 hour

O'Fallon Weather Radar

O'Fallon Weather Radar
Static Radar Temporarily Unavailable
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Clouds
Temperature

Hourly Weather

2 AM 35°
rain drop 63%
3 AM 35°
rain drop 73%
4 AM 35°
rain drop 40%
5 AM 36°
rain drop 34%
6 AM 36°
rain drop 34%
7 AM 36°
rain drop 45%
8 AM 36°
rain drop 49%
9 AM 37°
rain drop 49%
10 AM 39°
rain drop 40%
11 AM 40°
rain drop 34%
12 PM 42°
rain drop 29%
1 PM 43°
rain drop 20%

10-Day Weather Forecast

Today

3/2

46° 40°

Rain and drizzle this morning

Night: Cloudy, showers around late
60%

Tue

3/3

68° 54°

Some rain and a thunderstorm

Occasional rain and a t-storm
60%

Wed

3/4

65° 57°

A shower and t-storm; breezy

Showers and a heavier t-storm
88%

Thu

3/5

73° 56°

Cloudy, a shower and t-storm

Considerable cloudiness
88%

Fri

3/6

80° 57°

A shower and t-storm; warm

Some clouds with rain late
88%

Sat

3/7

66° 45°

Cooler; morning rain

Clear to partly cloudy
75%

Sun

3/8

70° 55°

Mostly cloudy and warm

Partly cloudy
0%

Mon

3/9

75° 56°

Mostly cloudy, p.m. showers

Partly cloudy
75%

Tue

3/10

75° 53°

A couple of thunderstorms

Rain
64%

Wed

3/11

61° 36°

Cooler with rain

Clearing and cooler
76%

Sun & Moon

11 hrs 23 mins
Rise 6:31 AM
Set 5:54 PM
Waxing Gibbous
Rise 5:18 PM
Set 6:31 AM

Air Quality

See More
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.

Allergy Outlook

See All
Tree Pollen Moderate 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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Weather Near O'Fallon:

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