Hourly Weather Forecast - O'Fallon, IL

12 AM
53°F
50%
11mph
W
50% Chance of Light Rain
Humidity
76%
Feels like
53°F
Dew Point
45°F
1 AM
52°F
60%
11mph
W
60% Chance of Light Rain
Humidity
77%
Feels like
52°F
Dew Point
45°F
2 AM
51°F
60%
11mph
W
60% Chance of Light Rain
Humidity
78%
Feels like
51°F
Dew Point
44°F
3 AM
50°F
60%
10mph
W
60% Chance of Light Rain
Humidity
79%
Feels like
45°F
Dew Point
43°F
4 AM
49°F
50%
10mph
W
50% Chance Rain Showers
Humidity
80%
Feels like
44°F
Dew Point
43°F
5 AM
47°F
40%
9mph
WNW
40% Chance Rain Showers
Humidity
81%
Feels like
43°F
Dew Point
42°F
6 AM
47°F
40%
9mph
WNW
40% Chance Rain Showers
Humidity
82%
Feels like
42°F
Dew Point
42°F
6:55 AM
7 AM
47°F
30%
9mph
WNW
30% Chance Rain Showers
Humidity
81%
Feels like
42°F
Dew Point
41°F
8 AM
48°F
30%
10mph
WNW
30% Chance Rain Showers
Humidity
77%
Feels like
44°F
Dew Point
41°F
9 AM
50°F
30%
10mph
NW
30% Chance Rain Showers
Humidity
72%
Feels like
50°F
Dew Point
42°F
10 AM
53°F
40%
10mph
WNW
40% Chance Rain Showers
Humidity
67%
Feels like
53°F
Dew Point
42°F
11 AM
55°F
40%
10mph
WNW
40% Chance Rain Showers
Humidity
62%
Feels like
55°F
Dew Point
42°F
12 PM
56°F
40%
10mph
WNW
40% Chance Rain Showers
Humidity
59%
Feels like
56°F
Dew Point
42°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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