Hourly Weather Forecast - O'Fallon, IL

12 AM
21°F
0%
9mph
NW
Clear
Humidity
47%
Feels like
12°F
Dew Point
4°F
1 AM
20°F
0%
9mph
NW
Clear
Humidity
50%
Feels like
10°F
Dew Point
5°F
2 AM
19°F
0%
9mph
NNW
Mostly Clear
Humidity
52%
Feels like
9°F
Dew Point
4°F
3 AM
18°F
0%
8mph
NNW
Mostly Clear
Humidity
52%
Feels like
8°F
Dew Point
4°F
4 AM
17°F
0%
8mph
NNW
Mostly Clear
Humidity
53%
Feels like
7°F
Dew Point
3°F
5 AM
17°F
0%
8mph
NNW
Mostly Clear
Humidity
54%
Feels like
7°F
Dew Point
3°F
6 AM
17°F
0%
7mph
NNW
Partly Cloudy
Humidity
54%
Feels like
7°F
Dew Point
3°F
7 AM
18°F
0%
7mph
NNW
Partly Cloudy
Humidity
52%
Feels like
9°F
Dew Point
4°F
7:08 AM
8 AM
21°F
10%
8mph
NW
Mostly Cloudy
Humidity
53%
Feels like
11°F
Dew Point
6°F
9 AM
24°F
10%
9mph
WNW
Mostly Cloudy
Humidity
47%
Feels like
15°F
Dew Point
7°F
10 AM
28°F
10%
9mph
W
Mostly Cloudy
Humidity
41%
Feels like
19°F
Dew Point
7°F
11 AM
31°F
10%
9mph
W
Mostly Cloudy
Humidity
36%
Feels like
23°F
Dew Point
7°F
12 PM
34°F
10%
9mph
WSW
Cloudy
Humidity
32%
Feels like
26°F
Dew Point
7°F
1 PM
36°F
10%
9mph
SW
Cloudy
Humidity
30%
Feels like
28°F
Dew Point
8°F
2 PM
37°F
10%
9mph
SSW
Cloudy
Humidity
32%
Feels like
30°F
Dew Point
10°F
3 PM
37°F
10%
9mph
SSW
Cloudy
Humidity
34%
Feels like
31°F
Dew Point
12°F
4 PM
37°F
10%
9mph
S
Mostly Cloudy
Humidity
38%
Feels like
31°F
Dew Point
14°F
5 PM
37°F
10%
9mph
S
Cloudy
Humidity
41%
Feels like
31°F
Dew Point
16°F
6 PM
37°F
10%
9mph
SE
Cloudy
Humidity
45%
Feels like
30°F
Dew Point
17°F
7 PM
36°F
10%
8mph
SE
Cloudy
Humidity
48%
Feels like
30°F
Dew Point
18°F
7:08 PM
8 PM
35°F
10%
8mph
ESE
Cloudy
Humidity
49%
Feels like
29°F
Dew Point
18°F
9 PM
35°F
10%
8mph
SE
Cloudy
Humidity
50%
Feels like
29°F
Dew Point
19°F
10 PM
35°F
10%
8mph
SE
Cloudy
Humidity
51%
Feels like
28°F
Dew Point
19°F

Today's Severe Weather Outlook

Severe Storms Continue To Wreak Havoc on East, Gulf Coasts

Multiple rounds of severe storms will form today from the Gulf Coast to the Mid-Atlantic.

Thursday's Weather Outlook

Thursday's Weather Outlook

Weekly Drought Map for March 5, 2026

Drought Worsens Nationwide Despite Multiple Disturbances

A tornado on the ground in Hildreth, Neb., on June 14, 2014 (NOAA Photo Library/Ken Engquist).

Tornadoes and Road Safety -- Do's and Don't's

A pothole big enough to hold a traffic cone and garbage. (David Shankbone, Wikimedia Common)

Potholes: A Springtime Driving Menace

This John Deere riding mower continues to hum along. (Wikimedia Commons)

Spring Mower and Power Tool Seasonal Checklist

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