Hourly Weather Forecast - Altamont, IL

12 AM
23°F
10%
5mph
SSW
Cloudy
Humidity
66%
Feels like
16°F
Dew Point
13°F
1 AM
23°F
10%
5mph
SSW
Cloudy
Humidity
68%
Feels like
16°F
Dew Point
14°F
2 AM
23°F
10%
5mph
SSW
Cloudy
Humidity
70%
Feels like
16°F
Dew Point
14°F
3 AM
22°F
10%
4mph
SSW
Cloudy
Humidity
72%
Feels like
16°F
Dew Point
15°F
4 AM
23°F
10%
4mph
SSW
Cloudy
Humidity
74%
Feels like
17°F
Dew Point
16°F
5 AM
22°F
10%
4mph
SSW
Cloudy
Humidity
77%
Feels like
17°F
Dew Point
16°F
6 AM
22°F
10%
4mph
S
Mostly Cloudy
Humidity
79%
Feels like
17°F
Dew Point
17°F
7 AM
23°F
10%
4mph
S
Mostly Cloudy
Humidity
83%
Feels like
17°F
Dew Point
18°F
7:07 AM
8 AM
25°F
10%
4mph
S
Mostly Cloudy
Humidity
82%
Feels like
19°F
Dew Point
20°F
9 AM
27°F
10%
4mph
S
Mostly Cloudy
Humidity
79%
Feels like
21°F
Dew Point
21°F
10 AM
29°F
10%
5mph
S
Mostly Cloudy
Humidity
78%
Feels like
24°F
Dew Point
23°F
11 AM
31°F
10%
5mph
S
Cloudy
Humidity
75%
Feels like
26°F
Dew Point
24°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

Thursday's Weather Outlook

Thursday'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