Hourly Weather Forecast - O'Fallon, IL

3 AM
31°F
0%
6mph
SSW
Clear
Humidity
61%
Feels like
25°F
Dew Point
19°F
4 AM
31°F
0%
7mph
SSW
Clear
Humidity
60%
Feels like
25°F
Dew Point
19°F
5 AM
32°F
0%
7mph
SSW
Clear
Humidity
59%
Feels like
25°F
Dew Point
19°F
6 AM
33°F
0%
7mph
SSW
Clear
Humidity
58%
Feels like
26°F
Dew Point
20°F
7 AM
35°F
0%
8mph
SSW
Clear
Humidity
56%
Feels like
29°F
Dew Point
21°F
7:17 AM
8 AM
37°F
0%
8mph
SSW
Sunny
Humidity
52%
Feels like
32°F
Dew Point
21°F
9 AM
41°F
0%
8mph
SW
Sunny
Humidity
48%
Feels like
35°F
Dew Point
22°F
10 AM
44°F
0%
9mph
SW
Sunny
Humidity
43%
Feels like
39°F
Dew Point
23°F
11 AM
48°F
0%
9mph
SW
Sunny
Humidity
39%
Feels like
44°F
Dew Point
24°F
12 PM
51°F
0%
10mph
SW
Sunny
Humidity
37%
Feels like
51°F
Dew Point
25°F
1 PM
53°F
0%
9mph
SW
Sunny
Humidity
36%
Feels like
53°F
Dew Point
26°F
2 PM
53°F
0%
9mph
SW
Sunny
Humidity
36%
Feels like
53°F
Dew Point
27°F
3 PM
52°F
0%
8mph
WSW
Mostly Sunny
Humidity
39%
Feels like
52°F
Dew Point
28°F
4 PM
49°F
0%
7mph
SW
Mostly Sunny
Humidity
44%
Feels like
46°F
Dew Point
28°F
4:59 PM
5 PM
47°F
0%
6mph
SW
Partly Cloudy
Humidity
48%
Feels like
44°F
Dew Point
28°F
6 PM
44°F
0%
5mph
SW
Partly Cloudy
Humidity
54%
Feels like
41°F
Dew Point
29°F
7 PM
42°F
0%
6mph
SSW
Mostly Clear
Humidity
59%
Feels like
38°F
Dew Point
29°F
8 PM
40°F
0%
6mph
SSW
Mostly Clear
Humidity
64%
Feels like
35°F
Dew Point
29°F
9 PM
38°F
0%
6mph
SW
Mostly Clear
Humidity
67%
Feels like
33°F
Dew Point
28°F
10 PM
37°F
0%
6mph
SW
Mostly Clear
Humidity
68%
Feels like
32°F
Dew Point
28°F
11 PM
37°F
0%
6mph
SW
Mostly Clear
Humidity
69%
Feels like
31°F
Dew Point
28°F

Monday's Weather Outlook

Today's Weather Outlook

An active pattern comes to an end as high pressure will bring quiet weather nationally.

(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