Hourly Weather Forecast - Cortland, IL

7 PM
34°F
70%
13mph
S
70% Chance of Light Rain
Humidity
97%
Feels like
25°F
Dew Point
33°F
8 PM
35°F
70%
15mph
S
70% Chance of Light Rain
Humidity
96%
Feels like
25°F
Dew Point
34°F
9 PM
36°F
70%
17mph
S
70% Chance of Light Rain
Humidity
95%
Feels like
26°F
Dew Point
34°F
10 PM
36°F
70%
18mph
SSW
70% Chance of Light Rain
Humidity
93%
Feels like
26°F
Dew Point
35°F
11 PM
37°F
40%
19mph
SW
40% Chance of Light Rain
Humidity
94%
Feels like
27°F
Dew Point
35°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday'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

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Weather Cameras

Outdoor Sports Guide