Hourly Weather Forecast - O'Fallon, MO

6 AM
28°F
0%
9mph
NNE
Mostly Clear
Humidity
80%
Feels like
19°F
Dew Point
22°F
6:35 AM
7 AM
29°F
0%
9mph
NE
Partly Cloudy
Humidity
78%
Feels like
20°F
Dew Point
23°F
8 AM
32°F
0%
10mph
NE
Mostly Cloudy
Humidity
73%
Feels like
24°F
Dew Point
24°F
9 AM
35°F
0%
10mph
NE
Partly Cloudy
Humidity
66%
Feels like
28°F
Dew Point
25°F
10 AM
38°F
0%
10mph
ENE
Mostly Cloudy
Humidity
61%
Feels like
31°F
Dew Point
26°F
11 AM
41°F
0%
10mph
ENE
Partly Cloudy
Humidity
57%
Feels like
35°F
Dew Point
27°F
12 PM
43°F
0%
9mph
ENE
Mostly Cloudy
Humidity
52%
Feels like
38°F
Dew Point
27°F
1 PM
45°F
0%
9mph
ENE
Mostly Cloudy
Humidity
49%
Feels like
40°F
Dew Point
27°F
2 PM
46°F
0%
10mph
ENE
Mostly Cloudy
Humidity
47%
Feels like
41°F
Dew Point
27°F
3 PM
47°F
0%
10mph
ENE
Mostly Cloudy
Humidity
45%
Feels like
42°F
Dew Point
27°F
4 PM
46°F
10%
9mph
ENE
Cloudy
Humidity
46%
Feels like
42°F
Dew Point
26°F
5 PM
45°F
10%
9mph
ENE
Cloudy
Humidity
47%
Feels like
41°F
Dew Point
26°F
5:55 PM
6 PM
44°F
20%
8mph
ENE
Cloudy
Humidity
49%
Feels like
39°F
Dew Point
26°F
7 PM
43°F
30%
8mph
ENE
30% Chance of Light Rain
Humidity
52%
Feels like
38°F
Dew Point
26°F
8 PM
42°F
40%
9mph
ENE
40% Chance of Light Rain
Humidity
55%
Feels like
37°F
Dew Point
27°F
9 PM
41°F
70%
9mph
ENE
70% Chance of Light Rain
Humidity
58%
Feels like
36°F
Dew Point
28°F
10 PM
40°F
80%
9mph
ENE
80% Chance of Rain
Humidity
63%
Feels like
34°F
Dew Point
29°F
11 PM
38°F
90%
9mph
ENE
Frozen Mix
Humidity
73%
Feels like
32°F
Dew Point
31°F

Snow and Ice Accumulations through Tuesday AM

Wintry Disturbance Bisects U.S. Mid-Latitudes

A wintry disturbance will bring icing and light snow from the central Plains today through the Northeast on Tuesday.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

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