Hourly Weather Forecast - O'Fallon, MO

12 AM
31°F
30%
22mph
NW
30% Chance of Flurries
Humidity
67%
Feels like
18°F
Dew Point
21°F
1 AM
29°F
30%
22mph
NW
30% Chance of Flurries
Humidity
67%
Feels like
16°F
Dew Point
20°F
2 AM
28°F
20%
21mph
NW
Windy
Humidity
67%
Feels like
14°F
Dew Point
18°F
3 AM
27°F
10%
21mph
NW
Windy
Humidity
65%
Feels like
13°F
Dew Point
17°F
4 AM
26°F
10%
21mph
NW
Windy
Humidity
63%
Feels like
11°F
Dew Point
15°F
5 AM
24°F
10%
20mph
NW
Mostly Clear
Humidity
60%
Feels like
10°F
Dew Point
13°F
6 AM
23°F
10%
19mph
NW
Clear
Humidity
59%
Feels like
8°F
Dew Point
11°F
7 AM
22°F
10%
19mph
NW
Clear
Humidity
56%
Feels like
7°F
Dew Point
8°F
7:13 AM
8 AM
22°F
10%
19mph
NW
Sunny
Humidity
54%
Feels like
7°F
Dew Point
8°F
9 AM
23°F
10%
19mph
WNW
Sunny
Humidity
50%
Feels like
9°F
Dew Point
7°F
10 AM
25°F
10%
18mph
WNW
Sunny
Humidity
44%
Feels like
11°F
Dew Point
6°F
11 AM
26°F
10%
18mph
WNW
Sunny
Humidity
40%
Feels like
13°F
Dew Point
5°F
12 PM
28°F
10%
17mph
WNW
Sunny
Humidity
36%
Feels like
16°F
Dew Point
4°F
1 PM
29°F
10%
16mph
WNW
Sunny
Humidity
33%
Feels like
18°F
Dew Point
4°F
2 PM
31°F
10%
16mph
WNW
Sunny
Humidity
30%
Feels like
20°F
Dew Point
4°F
3 PM
32°F
10%
16mph
WNW
Sunny
Humidity
28%
Feels like
22°F
Dew Point
3°F
4 PM
33°F
10%
15mph
WNW
Sunny
Humidity
28%
Feels like
22°F
Dew Point
3°F
5 PM
32°F
10%
14mph
WNW
Sunny
Humidity
29%
Feels like
22°F
Dew Point
3°F
6 PM
31°F
0%
12mph
NW
Sunny
Humidity
31%
Feels like
21°F
Dew Point
3°F
7 PM
29°F
0%
11mph
NW
Sunny
Humidity
33%
Feels like
19°F
Dew Point
3°F
7:10 PM
8 PM
27°F
0%
9mph
NW
Clear
Humidity
36%
Feels like
18°F
Dew Point
3°F
9 PM
26°F
0%
8mph
NW
Clear
Humidity
39%
Feels like
17°F
Dew Point
4°F
10 PM
25°F
0%
7mph
NW
Clear
Humidity
41%
Feels like
16°F
Dew Point
4°F
11 PM
24°F
10%
7mph
NW
Clear
Humidity
43%
Feels like
16°F
Dew Point
4°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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