Hourly Weather Forecast - O'Fallon, MO

12 AM
24°F
10%
6mph
NW
Clear
Humidity
43%
Feels like
16°F
Dew Point
4°F
1 AM
22°F
10%
6mph
NNW
Mostly Clear
Humidity
46%
Feels like
15°F
Dew Point
4°F
2 AM
21°F
10%
5mph
NNW
Mostly Clear
Humidity
48%
Feels like
14°F
Dew Point
5°F
3 AM
20°F
10%
5mph
NNW
Mostly Clear
Humidity
51%
Feels like
13°F
Dew Point
5°F
4 AM
19°F
10%
5mph
NNW
Mostly Clear
Humidity
53%
Feels like
12°F
Dew Point
4°F
5 AM
18°F
10%
4mph
NNW
Mostly Clear
Humidity
54%
Feels like
11°F
Dew Point
4°F
6 AM
18°F
10%
4mph
NNW
Partly Cloudy
Humidity
54%
Feels like
12°F
Dew Point
5°F
7 AM
20°F
10%
3mph
NNW
Partly Cloudy
Humidity
51%
Feels like
15°F
Dew Point
5°F
7:11 AM
8 AM
23°F
10%
3mph
WNW
Partly Cloudy
Humidity
48%
Feels like
23°F
Dew Point
6°F
9 AM
26°F
10%
3mph
WSW
Mostly Cloudy
Humidity
42%
Feels like
22°F
Dew Point
6°F
10 AM
29°F
10%
5mph
SW
Cloudy
Humidity
38%
Feels like
24°F
Dew Point
7°F
11 AM
32°F
10%
6mph
SSW
Cloudy
Humidity
34%
Feels like
27°F
Dew Point
8°F
12 PM
35°F
10%
7mph
SSW
Cloudy
Humidity
31%
Feels like
30°F
Dew Point
8°F
1 PM
38°F
10%
7mph
S
Cloudy
Humidity
30%
Feels like
32°F
Dew Point
9°F
2 PM
40°F
10%
8mph
S
Cloudy
Humidity
29%
Feels like
35°F
Dew Point
11°F
3 PM
42°F
10%
8mph
S
Cloudy
Humidity
30%
Feels like
37°F
Dew Point
13°F

Today's Severe Weather Outlook

Severe Storms Rally from Gulf Coast to Mid-Atlantic

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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Today's National Outlook

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