Hourly Weather Forecast - O'Fallon, MO

12 AM
31°F
0%
9mph
WNW
Clear
Humidity
46%
Feels like
23°F
Dew Point
13°F
1 AM
31°F
0%
9mph
WNW
Clear
Humidity
46%
Feels like
23°F
Dew Point
12°F
2 AM
30°F
0%
8mph
WNW
Clear
Humidity
45%
Feels like
23°F
Dew Point
12°F
3 AM
30°F
0%
8mph
WNW
Clear
Humidity
45%
Feels like
23°F
Dew Point
11°F
4 AM
30°F
0%
7mph
WNW
Clear
Humidity
43%
Feels like
23°F
Dew Point
11°F
5 AM
28°F
0%
6mph
WNW
Clear
Humidity
47%
Feels like
21°F
Dew Point
10°F
6 AM
26°F
10%
6mph
WNW
Clear
Humidity
51%
Feels like
19°F
Dew Point
10°F
7 AM
24°F
10%
5mph
NW
Clear
Humidity
56%
Feels like
17°F
Dew Point
10°F
7:16 AM
8 AM
24°F
10%
5mph
NNW
Sunny
Humidity
55%
Feels like
18°F
Dew Point
11°F
9 AM
25°F
10%
5mph
N
Sunny
Humidity
53%
Feels like
19°F
Dew Point
11°F
10 AM
27°F
10%
2mph
NNE
Mostly Sunny
Humidity
51%
Feels like
27°F
Dew Point
11°F
11 AM
28°F
10%
1mph
SE
Mostly Sunny
Humidity
49%
Feels like
28°F
Dew Point
12°F

Snowfall forecast through Sunday A.M.

Snow Spreads Across the Midwest into the Mid-Atlantic

A fast moving disturbance will bring snow to the Midwest and Mid-Atlantic this weekend.

Weekend Weather Outlook

Weekend Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

Story Image via pixabay.com

Winter Precipitation

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