Hourly Weather Forecast - Lanark, IL

11 AM
28°F
0%
9mph
WSW
Mostly Cloudy
Humidity
93%
Feels like
20°F
Dew Point
26°F
12 PM
29°F
0%
9mph
WSW
Cloudy
Humidity
93%
Feels like
21°F
Dew Point
27°F
1 PM
30°F
0%
8mph
SW
Cloudy
Humidity
93%
Feels like
23°F
Dew Point
28°F
2 PM
31°F
10%
8mph
SSW
Cloudy
Humidity
93%
Feels like
23°F
Dew Point
29°F
3 PM
31°F
10%
8mph
S
Cloudy
Humidity
94%
Feels like
24°F
Dew Point
30°F
4 PM
32°F
10%
9mph
S
Cloudy
Humidity
95%
Feels like
24°F
Dew Point
31°F
4:27 PM
5 PM
32°F
20%
11mph
S
Cloudy
Humidity
96%
Feels like
24°F
Dew Point
31°F
6 PM
33°F
30%
12mph
S
30% Chance of Light Rain
Humidity
97%
Feels like
24°F
Dew Point
32°F
7 PM
34°F
50%
13mph
S
50% Chance of Light Rain
Humidity
97%
Feels like
25°F
Dew Point
33°F
8 PM
35°F
60%
14mph
SSW
60% Chance of Light Rain
Humidity
98%
Feels like
25°F
Dew Point
34°F
9 PM
36°F
50%
15mph
SW
50% Chance of Light Rain
Humidity
99%
Feels like
26°F
Dew Point
35°F
10 PM
36°F
30%
15mph
SW
30% Chance of Light Rain
Humidity
99%
Feels like
27°F
Dew Point
36°F
11 PM
37°F
30%
16mph
WSW
30% Chance of Light Rain
Humidity
99%
Feels like
27°F
Dew Point
36°F

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

A fast-moving series of atmospheric rivers continue to drench the Pacific Northwest today through Thursday.

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

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

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Traffic Cameras

Weather Cameras

Outdoor Sports Guide