Hourly Weather Forecast - O'Fallon, IL

12 AM
29°F
0%
9mph
SE
Cloudy
Humidity
60%
Feels like
21°F
Dew Point
17°F
1 AM
29°F
0%
9mph
SSE
Cloudy
Humidity
61%
Feels like
20°F
Dew Point
17°F
2 AM
28°F
0%
9mph
SSE
Cloudy
Humidity
62%
Feels like
20°F
Dew Point
17°F
3 AM
28°F
0%
9mph
SSE
Mostly Cloudy
Humidity
63%
Feels like
19°F
Dew Point
17°F
4 AM
28°F
0%
9mph
SSE
Mostly Cloudy
Humidity
64%
Feels like
19°F
Dew Point
17°F
5 AM
28°F
0%
9mph
SSE
Mostly Cloudy
Humidity
66%
Feels like
19°F
Dew Point
18°F
6 AM
28°F
0%
10mph
SSE
Mostly Cloudy
Humidity
67%
Feels like
19°F
Dew Point
19°F
6:58 AM
7 AM
30°F
0%
10mph
SSE
Partly Cloudy
Humidity
65%
Feels like
21°F
Dew Point
20°F
8 AM
32°F
0%
10mph
SSE
Partly Cloudy
Humidity
62%
Feels like
24°F
Dew Point
21°F
9 AM
36°F
0%
10mph
S
Partly Cloudy
Humidity
57%
Feels like
29°F
Dew Point
22°F
10 AM
39°F
0%
10mph
S
Partly Cloudy
Humidity
53%
Feels like
33°F
Dew Point
24°F
11 AM
43°F
0%
9mph
S
Partly Cloudy
Humidity
50%
Feels like
37°F
Dew Point
25°F
12 PM
45°F
0%
9mph
S
Mostly Sunny
Humidity
48%
Feels like
41°F
Dew Point
27°F
1 PM
47°F
0%
8mph
S
Mostly Sunny
Humidity
48%
Feels like
44°F
Dew Point
29°F
2 PM
49°F
0%
7mph
S
Partly Cloudy
Humidity
48%
Feels like
46°F
Dew Point
30°F
3 PM
49°F
0%
6mph
S
Partly Cloudy
Humidity
50%
Feels like
46°F
Dew Point
31°F
4 PM
47°F
0%
6mph
S
Partly Cloudy
Humidity
54%
Feels like
44°F
Dew Point
31°F
5 PM
44°F
0%
6mph
SSE
Partly Cloudy
Humidity
61%
Feels like
40°F
Dew Point
31°F
5:29 PM
6 PM
42°F
0%
6mph
SSE
Mostly Cloudy
Humidity
66%
Feels like
38°F
Dew Point
31°F
7 PM
40°F
0%
7mph
SSE
Mostly Cloudy
Humidity
70%
Feels like
35°F
Dew Point
31°F
8 PM
39°F
0%
7mph
SSE
Mostly Cloudy
Humidity
72%
Feels like
34°F
Dew Point
31°F
9 PM
38°F
0%
7mph
S
Mostly Cloudy
Humidity
73%
Feels like
33°F
Dew Point
31°F
10 PM
37°F
0%
7mph
S
Mostly Cloudy
Humidity
74%
Feels like
32°F
Dew Point
30°F
11 PM
36°F
0%
7mph
SSW
Mostly Cloudy
Humidity
76%
Feels like
31°F
Dew Point
29°F

Friday's Weather Outlook

Friday's Weather Outlook

A snow-filled clipper system is set to sweep through the Great Lakes, Ohio Valley, and Mid-Atlantic.

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for February 5, 2026

Scarce Precipitation Leads to Widespread Drought Degradation

Image courtesy of Pixabay.com

All About Snow Squalls

A person in a pink coat and red mittens holding a snowball. (Image by Dmitriy Gutarev from Pixabay)

Cold Weather and Worsening Health Conditions

Windchill chart

Dangers of Wind Chills

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