Hourly Weather Forecast - O'Fallon, MO

12 AM
24°F
0%
9mph
NNW
Clear
Humidity
51%
Feels like
14°F
Dew Point
8°F
1 AM
23°F
0%
9mph
NW
Clear
Humidity
53%
Feels like
13°F
Dew Point
8°F
2 AM
22°F
0%
9mph
NW
Clear
Humidity
54%
Feels like
12°F
Dew Point
8°F
3 AM
21°F
0%
8mph
NW
Clear
Humidity
56%
Feels like
12°F
Dew Point
8°F
4 AM
21°F
0%
8mph
NW
Clear
Humidity
57%
Feels like
11°F
Dew Point
8°F
5 AM
20°F
0%
7mph
NW
Clear
Humidity
58%
Feels like
11°F
Dew Point
8°F
6 AM
20°F
0%
6mph
NW
Clear
Humidity
59%
Feels like
12°F
Dew Point
8°F
7 AM
21°F
0%
6mph
NW
Clear
Humidity
57%
Feels like
13°F
Dew Point
8°F
7:20 AM
8 AM
22°F
0%
5mph
NW
Sunny
Humidity
56%
Feels like
15°F
Dew Point
9°F
9 AM
25°F
0%
5mph
WNW
Sunny
Humidity
53%
Feels like
18°F
Dew Point
10°F
10 AM
28°F
0%
5mph
WNW
Sunny
Humidity
48%
Feels like
22°F
Dew Point
11°F
11 AM
30°F
0%
5mph
W
Sunny
Humidity
44%
Feels like
24°F
Dew Point
10°F
12 PM
32°F
0%
5mph
W
Mostly Sunny
Humidity
40%
Feels like
27°F
Dew Point
10°F
1 PM
34°F
0%
6mph
WSW
Mostly Sunny
Humidity
36%
Feels like
29°F
Dew Point
10°F
2 PM
35°F
0%
6mph
WSW
Mostly Sunny
Humidity
33%
Feels like
30°F
Dew Point
9°F
3 PM
36°F
0%
7mph
SW
Mostly Sunny
Humidity
33%
Feels like
30°F
Dew Point
9°F
4 PM
35°F
0%
6mph
SW
Partly Cloudy
Humidity
34%
Feels like
29°F
Dew Point
10°F
5 PM
33°F
0%
5mph
SSW
Partly Cloudy
Humidity
39%
Feels like
28°F
Dew Point
10°F
5:05 PM
6 PM
31°F
0%
6mph
S
Partly Cloudy
Humidity
42%
Feels like
25°F
Dew Point
11°F
7 PM
30°F
0%
6mph
S
Mostly Cloudy
Humidity
45%
Feels like
23°F
Dew Point
11°F
8 PM
31°F
0%
8mph
S
Cloudy
Humidity
43%
Feels like
24°F
Dew Point
11°F
9 PM
32°F
20%
9mph
SSW
Cloudy
Humidity
43%
Feels like
25°F
Dew Point
12°F
10 PM
33°F
40%
9mph
SSW
40% Chance of Flurries
Humidity
46%
Feels like
25°F
Dew Point
15°F
11 PM
33°F
60%
10mph
SSW
60% Chance of Flurries
Humidity
52%
Feels like
26°F
Dew Point
18°F

Wednesday's Weather Outlook

Wednesday's Weather Outlook

It will be a tale of two seasons on Wednesday, with cold, wintry weather in the East and dry, spring-like weather in the West.

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

(Image provided by Pixabay.com)

Before a High Wind Event

Windchill chart

Dangers of Wind Chills

A snow-covered trail in Sparkill, N.Y. (H. Martinez, WeatherBug user)

Top Winter Hiking Destinations

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