Hourly Weather Forecast - O'Fallon, MO

12 AM
49°F
70%
9mph
W
70% Chance of Light Rain
Humidity
78%
Feels like
46°F
Dew Point
43°F
1 AM
48°F
10%
8mph
WNW
Mostly Cloudy
Humidity
81%
Feels like
44°F
Dew Point
42°F
2 AM
47°F
10%
8mph
WNW
Mostly Cloudy
Humidity
82%
Feels like
42°F
Dew Point
41°F
3 AM
45°F
10%
9mph
NW
Mostly Cloudy
Humidity
82%
Feels like
40°F
Dew Point
40°F
4 AM
44°F
10%
11mph
NW
Partly Cloudy
Humidity
81%
Feels like
38°F
Dew Point
38°F
5 AM
42°F
10%
12mph
NW
Partly Cloudy
Humidity
79%
Feels like
35°F
Dew Point
36°F
6 AM
41°F
10%
14mph
NNW
Partly Cloudy
Humidity
75%
Feels like
33°F
Dew Point
33°F
7 AM
40°F
10%
15mph
NNW
Mostly Cloudy
Humidity
72%
Feels like
31°F
Dew Point
31°F
7:20 AM
8 AM
39°F
10%
16mph
NNW
Mostly Cloudy
Humidity
70%
Feels like
31°F
Dew Point
30°F
9 AM
39°F
10%
18mph
NNW
Mostly Cloudy
Humidity
66%
Feels like
30°F
Dew Point
29°F
10 AM
38°F
10%
18mph
NNW
Mostly Cloudy
Humidity
61%
Feels like
29°F
Dew Point
26°F
11 AM
37°F
10%
19mph
NNW
Mostly Cloudy
Humidity
56%
Feels like
27°F
Dew Point
23°F
12 PM
36°F
10%
19mph
NNW
Partly Cloudy
Humidity
51%
Feels like
26°F
Dew Point
20°F
1 PM
36°F
10%
18mph
NNW
Partly Cloudy
Humidity
48%
Feels like
25°F
Dew Point
18°F
2 PM
35°F
10%
18mph
NNW
Mostly Sunny
Humidity
45%
Feels like
25°F
Dew Point
16°F
3 PM
34°F
10%
17mph
NNW
Sunny
Humidity
44%
Feels like
23°F
Dew Point
14°F
4 PM
31°F
10%
16mph
NNW
Sunny
Humidity
45%
Feels like
21°F
Dew Point
13°F
5 PM
30°F
10%
13mph
NNW
Sunny
Humidity
46%
Feels like
20°F
Dew Point
12°F
5:04 PM
6 PM
29°F
10%
12mph
NNW
Clear
Humidity
46%
Feels like
19°F
Dew Point
11°F
7 PM
28°F
10%
11mph
NNW
Clear
Humidity
47%
Feels like
19°F
Dew Point
11°F
8 PM
28°F
10%
11mph
NNW
Clear
Humidity
46%
Feels like
18°F
Dew Point
10°F
9 PM
27°F
10%
11mph
NNW
Clear
Humidity
48%
Feels like
17°F
Dew Point
9°F
10 PM
26°F
10%
10mph
NNW
Clear
Humidity
48%
Feels like
16°F
Dew Point
8°F
11 PM
25°F
10%
9mph
NNW
Clear
Humidity
49%
Feels like
15°F
Dew Point
8°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide