Hourly Weather Forecast - Altamont, IL

11 AM
35°F
10%
15mph
WNW
Mostly Cloudy
Humidity
92%
Feels like
25°F
Dew Point
33°F
12 PM
33°F
10%
16mph
WNW
Cloudy
Humidity
90%
Feels like
23°F
Dew Point
31°F
1 PM
33°F
10%
15mph
WNW
Cloudy
Humidity
92%
Feels like
22°F
Dew Point
30°F
2 PM
32°F
0%
14mph
NW
Cloudy
Humidity
94%
Feels like
22°F
Dew Point
30°F
3 PM
31°F
0%
13mph
NW
Cloudy
Humidity
93%
Feels like
21°F
Dew Point
30°F
4 PM
31°F
0%
12mph
NW
Cloudy
Humidity
91%
Feels like
21°F
Dew Point
28°F
4:32 PM
5 PM
30°F
0%
11mph
NW
Cloudy
Humidity
90%
Feels like
21°F
Dew Point
28°F
6 PM
30°F
0%
10mph
NW
Cloudy
Humidity
88%
Feels like
22°F
Dew Point
27°F
7 PM
30°F
0%
9mph
NW
Mostly Cloudy
Humidity
87%
Feels like
22°F
Dew Point
27°F
8 PM
29°F
0%
8mph
NW
Cloudy
Humidity
86%
Feels like
22°F
Dew Point
26°F
9 PM
29°F
0%
7mph
NW
Cloudy
Humidity
86%
Feels like
22°F
Dew Point
25°F
10 PM
28°F
0%
7mph
NW
Cloudy
Humidity
88%
Feels like
21°F
Dew Point
25°F
11 PM
28°F
0%
6mph
NW
Cloudy
Humidity
89%
Feels like
21°F
Dew Point
25°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide