Hourly Weather Forecast - O'Fallon, MO

7 AM
54°F
0%
5mph
WSW
Mostly Clear
Humidity
75%
Feels like
54°F
Dew Point
46°F
7:06 AM
8 AM
58°F
0%
6mph
WSW
Mostly Sunny
Humidity
68%
Feels like
58°F
Dew Point
47°F
9 AM
63°F
0%
6mph
WSW
Sunny
Humidity
59%
Feels like
63°F
Dew Point
49°F
10 AM
69°F
0%
7mph
WSW
Sunny
Humidity
51%
Feels like
69°F
Dew Point
50°F
11 AM
74°F
0%
8mph
WSW
Sunny
Humidity
45%
Feels like
74°F
Dew Point
51°F
12 PM
79°F
0%
9mph
W
Sunny
Humidity
39%
Feels like
79°F
Dew Point
52°F
1 PM
83°F
0%
10mph
W
Sunny
Humidity
35%
Feels like
81°F
Dew Point
53°F
2 PM
85°F
0%
11mph
W
Sunny
Humidity
32%
Feels like
83°F
Dew Point
52°F
3 PM
86°F
0%
11mph
W
Mostly Sunny
Humidity
31%
Feels like
84°F
Dew Point
51°F
4 PM
85°F
0%
10mph
WNW
Mostly Sunny
Humidity
30%
Feels like
83°F
Dew Point
50°F
5 PM
83°F
0%
9mph
WNW
Mostly Sunny
Humidity
32%
Feels like
81°F
Dew Point
50°F
6 PM
80°F
0%
7mph
NW
Mostly Sunny
Humidity
35%
Feels like
80°F
Dew Point
50°F
7 PM
77°F
0%
6mph
NW
Mostly Sunny
Humidity
39%
Feels like
77°F
Dew Point
51°F
7:14 PM
8 PM
74°F
0%
5mph
NNW
Mostly Clear
Humidity
43%
Feels like
74°F
Dew Point
50°F
9 PM
71°F
0%
4mph
NNW
Partly Cloudy
Humidity
48%
Feels like
71°F
Dew Point
50°F
10 PM
68°F
0%
4mph
N
Mostly Clear
Humidity
53%
Feels like
68°F
Dew Point
51°F
11 PM
65°F
0%
3mph
N
Partly Cloudy
Humidity
57%
Feels like
65°F
Dew Point
50°F

Today's High Temperature Outlook

Dangerous Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

Today's Weather Outlook

Today's Weather Outlook

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Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

(Image provided by Pixabay.com)

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