Hourly Weather Forecast - Lanark, IL

12 AM
10°F
0%
2mph
SSE
Mostly Clear
Humidity
88%
Feels like
10°F
Dew Point
8°F
1 AM
10°F
0%
2mph
SSE
Mostly Clear
Humidity
88%
Feels like
10°F
Dew Point
8°F
2 AM
10°F
10%
3mph
SSE
Mostly Clear
Humidity
88%
Feels like
4°F
Dew Point
8°F
3 AM
11°F
10%
4mph
SSE
Mostly Clear
Humidity
89%
Feels like
4°F
Dew Point
8°F
4 AM
11°F
10%
4mph
SSE
Partly Cloudy
Humidity
89%
Feels like
4°F
Dew Point
9°F
5 AM
12°F
10%
4mph
S
Partly Cloudy
Humidity
90%
Feels like
5°F
Dew Point
10°F
6 AM
14°F
10%
5mph
S
Partly Cloudy
Humidity
91%
Feels like
5°F
Dew Point
11°F
7 AM
16°F
10%
6mph
S
Partly Cloudy
Humidity
92%
Feels like
6°F
Dew Point
14°F
7:21 AM
8 AM
18°F
10%
7mph
SSW
Partly Cloudy
Humidity
94%
Feels like
9°F
Dew Point
17°F
9 AM
21°F
10%
8mph
SSW
Partly Cloudy
Humidity
95%
Feels like
12°F
Dew Point
20°F
10 AM
24°F
10%
9mph
SSW
Hazy
Humidity
95%
Feels like
15°F
Dew Point
23°F
11 AM
27°F
10%
10mph
SSW
Hazy
Humidity
93%
Feels like
18°F
Dew Point
26°F
12 PM
30°F
10%
11mph
SSW
Hazy
Humidity
93%
Feels like
21°F
Dew Point
28°F
1 PM
32°F
10%
11mph
SSW
Partly Cloudy
Humidity
93%
Feels like
23°F
Dew Point
30°F
2 PM
33°F
10%
11mph
SSW
Partly Cloudy
Humidity
93%
Feels like
24°F
Dew Point
31°F
3 PM
34°F
10%
12mph
SSW
Partly Cloudy
Humidity
94%
Feels like
25°F
Dew Point
32°F
4 PM
33°F
10%
12mph
SSW
Partly Cloudy
Humidity
94%
Feels like
25°F
Dew Point
32°F
4:28 PM
5 PM
33°F
10%
12mph
SW
Mostly Cloudy
Humidity
95%
Feels like
24°F
Dew Point
32°F
6 PM
32°F
10%
12mph
SW
Cloudy
Humidity
96%
Feels like
23°F
Dew Point
31°F
7 PM
33°F
10%
12mph
SW
Cloudy
Humidity
97%
Feels like
24°F
Dew Point
32°F
8 PM
33°F
10%
11mph
SW
Cloudy
Humidity
98%
Feels like
24°F
Dew Point
32°F
9 PM
33°F
10%
11mph
WSW
Foggy
Humidity
99%
Feels like
24°F
Dew Point
33°F
10 PM
33°F
10%
10mph
WSW
Foggy
Humidity
99%
Feels like
25°F
Dew Point
33°F
11 PM
33°F
10%
9mph
WSW
Cloudy
Humidity
98%
Feels like
25°F
Dew Point
32°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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