Hourly Weather Forecast - Mendon, IL

12 AM
9°F
0%
7mph
SSE
Clear
Humidity
69%
Feels like
-3°F
Dew Point
1°F
1 AM
9°F
0%
8mph
SSE
Clear
Humidity
68%
Feels like
-3°F
Dew Point
1°F
2 AM
10°F
0%
9mph
SSE
Clear
Humidity
67%
Feels like
-3°F
Dew Point
1°F
3 AM
11°F
0%
9mph
SSE
Clear
Humidity
66%
Feels like
-2°F
Dew Point
2°F
4 AM
11°F
10%
10mph
SSE
Clear
Humidity
66%
Feels like
-2°F
Dew Point
2°F
5 AM
12°F
10%
10mph
S
Mostly Clear
Humidity
65%
Feels like
-1°F
Dew Point
3°F
6 AM
13°F
10%
11mph
S
Partly Cloudy
Humidity
65%
Feels like
0°F
Dew Point
4°F
7 AM
15°F
10%
11mph
S
Partly Cloudy
Humidity
65%
Feels like
2°F
Dew Point
6°F
7:19 AM
8 AM
17°F
10%
12mph
S
Mostly Cloudy
Humidity
65%
Feels like
5°F
Dew Point
8°F
9 AM
20°F
10%
12mph
S
Cloudy
Humidity
65%
Feels like
8°F
Dew Point
10°F
10 AM
24°F
10%
12mph
S
Cloudy
Humidity
63%
Feels like
12°F
Dew Point
13°F
11 AM
27°F
10%
11mph
SSW
Cloudy
Humidity
61%
Feels like
17°F
Dew Point
16°F
12 PM
31°F
10%
11mph
SSW
Cloudy
Humidity
60%
Feels like
21°F
Dew Point
18°F
1 PM
33°F
10%
11mph
SSW
Cloudy
Humidity
59%
Feels like
24°F
Dew Point
20°F
2 PM
34°F
10%
11mph
SSW
Cloudy
Humidity
59%
Feels like
26°F
Dew Point
21°F
3 PM
35°F
10%
10mph
SSW
Cloudy
Humidity
59%
Feels like
27°F
Dew Point
22°F
4 PM
34°F
10%
9mph
SSW
Mostly Cloudy
Humidity
62%
Feels like
27°F
Dew Point
23°F
4:40 PM
5 PM
33°F
10%
8mph
SSW
Partly Cloudy
Humidity
67%
Feels like
26°F
Dew Point
23°F
6 PM
31°F
10%
7mph
SSW
Partly Cloudy
Humidity
70%
Feels like
25°F
Dew Point
23°F
7 PM
30°F
10%
6mph
SSW
Partly Cloudy
Humidity
73%
Feels like
24°F
Dew Point
23°F
8 PM
29°F
10%
6mph
S
Mostly Cloudy
Humidity
75%
Feels like
23°F
Dew Point
22°F
9 PM
28°F
10%
6mph
S
Cloudy
Humidity
77%
Feels like
22°F
Dew Point
22°F
10 PM
28°F
10%
5mph
SSW
Cloudy
Humidity
78%
Feels like
22°F
Dew Point
22°F
11 PM
28°F
10%
5mph
SSW
Cloudy
Humidity
77%
Feels like
23°F
Dew Point
22°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