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O'Fallon, MO

45°F
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O'Fallon

Missouri

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O'Fallon, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center

Today

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

Tonight's Weather

Sat, May 2

Clear and chilly Lo: 41°

Tomorrow: Breezy in the morning; mostly sunny and warmer with a thunderstorm in spots late in the afternoon Hi: 76°

Current Weather

11:33 PM

45°F
RealFeel® 48°
Clear More Details
Wind NW 1 mph
Wind Gusts 2 mph
Air Quality Fair

Looking Ahead

Watch for rounds of thunderstorms, some severe, early this week

O'Fallon Weather Radar

O'Fallon Weather Radar
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Clouds
Temperature

Hourly Weather

12 AM 45°
rain drop 0%
1 AM 44°
rain drop 0%
2 AM 43°
rain drop 0%
3 AM 42°
rain drop 0%
4 AM 41°
rain drop 0%
5 AM 41°
rain drop 0%
6 AM 42°
rain drop 0%
7 AM 43°
rain drop 0%
8 AM 47°
rain drop 0%
9 AM 54°
rain drop 0%
10 AM 60°
rain drop 0%
11 AM 63°
rain drop 0%

10-Day Weather Forecast

Tonight

5/2

41° Lo

Clear and chilly

1%

Sun

5/3

76° 53°

A t-storm around in the p.m.

Night: A stray evening thunderstorm
55%

Mon

5/4

76° 58°

A stray afternoon t-storm

Cloudy, a shower and t-storm
55%

Tue

5/5

62° 47°

Rain and a t-storm; cooler

Cloudy with occasional rain
94%

Wed

5/6

59° 42°

Chance of a little p.m. rain

Cloudy and chilly
30%

Thu

5/7

60° 42°

A morning shower; breezy

Partly cloudy and chilly
55%

Fri

5/8

66° 49°

Mostly cloudy, a few showers

Cloudy most of the time
56%

Sat

5/9

73° 48°

Partly sunny and warmer

Clear to partly cloudy
1%

Sun

5/10

74° 50°

A couple of showers

Early rain, then a shower
59%

Mon

5/11

69° 50°

Clouds yielding to sun

Mainly clear
4%

Sun & Moon

13 hrs 52 mins
Rise 6:04 AM
Set 7:56 PM
Waning Gibbous
Rise 9:24 PM
Set 6:43 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 Very High Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Moderate Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander Moderate 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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