Hourly Weather Forecast - O'Fallon, IL

12 AM
35°F
0%
10mph
NNW
Clear
Humidity
72%
Feels like
27°F
Dew Point
27°F
1 AM
33°F
0%
9mph
NNW
Clear
Humidity
73%
Feels like
26°F
Dew Point
26°F
2 AM
32°F
0%
9mph
NNW
Clear
Humidity
74%
Feels like
25°F
Dew Point
25°F
3 AM
31°F
0%
8mph
N
Clear
Humidity
76%
Feels like
24°F
Dew Point
24°F
4 AM
30°F
0%
7mph
N
Clear
Humidity
77%
Feels like
23°F
Dew Point
24°F
5 AM
28°F
0%
7mph
N
Clear
Humidity
79%
Feels like
21°F
Dew Point
22°F
6 AM
27°F
0%
7mph
NNE
Clear
Humidity
78%
Feels like
20°F
Dew Point
21°F
6:59 AM
7 AM
28°F
0%
6mph
NNE
Sunny
Humidity
73%
Feels like
20°F
Dew Point
20°F
8 AM
29°F
0%
7mph
NE
Sunny
Humidity
65%
Feels like
22°F
Dew Point
19°F
9 AM
31°F
0%
7mph
NE
Mostly Sunny
Humidity
57%
Feels like
24°F
Dew Point
18°F
10 AM
33°F
0%
6mph
ENE
Sunny
Humidity
51%
Feels like
27°F
Dew Point
17°F
11 AM
34°F
0%
6mph
ENE
Mostly Sunny
Humidity
47%
Feels like
29°F
Dew Point
16°F
12 PM
35°F
0%
5mph
E
Mostly Sunny
Humidity
46%
Feels like
30°F
Dew Point
16°F
1 PM
35°F
0%
5mph
ESE
Mostly Sunny
Humidity
44%
Feels like
31°F
Dew Point
16°F
2 PM
36°F
0%
6mph
ESE
Mostly Sunny
Humidity
44%
Feels like
31°F
Dew Point
16°F
3 PM
35°F
0%
6mph
ESE
Mostly Sunny
Humidity
45%
Feels like
30°F
Dew Point
16°F
4 PM
34°F
0%
6mph
SE
Mostly Sunny
Humidity
48%
Feels like
28°F
Dew Point
16°F
5 PM
32°F
0%
6mph
SE
Partly Cloudy
Humidity
52%
Feels like
26°F
Dew Point
17°F
5:28 PM
6 PM
31°F
0%
7mph
SE
Partly Cloudy
Humidity
55%
Feels like
25°F
Dew Point
17°F
7 PM
31°F
0%
8mph
SE
Mostly Cloudy
Humidity
56%
Feels like
23°F
Dew Point
17°F
8 PM
30°F
0%
9mph
SE
Mostly Cloudy
Humidity
57%
Feels like
22°F
Dew Point
17°F
9 PM
30°F
0%
9mph
SE
Cloudy
Humidity
58%
Feels like
22°F
Dew Point
17°F
10 PM
30°F
0%
9mph
SE
Cloudy
Humidity
59%
Feels like
22°F
Dew Point
17°F
11 PM
29°F
0%
9mph
SE
Cloudy
Humidity
60%
Feels like
21°F
Dew Point
17°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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