Hourly Weather Forecast - Lanark, IL

12 AM
16°F
60%
16mph
WNW
60% Chance Snow Showers
Humidity
72%
Feels like
1°F
Dew Point
9°F
1 AM
15°F
30%
15mph
WNW
30% Chance Snow Showers
Humidity
71%
Feels like
0°F
Dew Point
8°F
2 AM
14°F
0%
15mph
WNW
Clear
Humidity
71%
Feels like
-1°F
Dew Point
6°F
3 AM
13°F
0%
14mph
WNW
Clear
Humidity
70%
Feels like
-2°F
Dew Point
5°F
4 AM
13°F
0%
12mph
WNW
Clear
Humidity
70%
Feels like
-2°F
Dew Point
4°F
5 AM
12°F
0%
11mph
WNW
Clear
Humidity
70%
Feels like
-2°F
Dew Point
4°F
6 AM
11°F
0%
9mph
WNW
Clear
Humidity
70%
Feels like
-1°F
Dew Point
4°F
7 AM
11°F
0%
8mph
WNW
Clear
Humidity
69%
Feels like
0°F
Dew Point
3°F
7:23 AM
8 AM
11°F
0%
8mph
NW
Sunny
Humidity
70%
Feels like
0°F
Dew Point
4°F
9 AM
12°F
0%
7mph
WNW
Mostly Sunny
Humidity
70%
Feels like
2°F
Dew Point
4°F
10 AM
13°F
0%
6mph
WNW
Partly Cloudy
Humidity
68%
Feels like
5°F
Dew Point
5°F
11 AM
15°F
0%
5mph
W
Partly Cloudy
Humidity
65%
Feels like
8°F
Dew Point
6°F
12 PM
17°F
0%
5mph
WSW
Mostly Cloudy
Humidity
62%
Feels like
10°F
Dew Point
6°F
1 PM
18°F
10%
6mph
SSW
Cloudy
Humidity
61%
Feels like
10°F
Dew Point
7°F
2 PM
19°F
10%
7mph
S
Mostly Cloudy
Humidity
61%
Feels like
10°F
Dew Point
8°F
3 PM
20°F
10%
9mph
S
Mostly Cloudy
Humidity
61%
Feels like
10°F
Dew Point
9°F
4 PM
21°F
10%
9mph
S
Mostly Cloudy
Humidity
62%
Feels like
10°F
Dew Point
10°F
4:29 PM
5 PM
21°F
10%
10mph
SSE
Cloudy
Humidity
63%
Feels like
10°F
Dew Point
10°F
6 PM
21°F
10%
10mph
SSE
Cloudy
Humidity
64%
Feels like
10°F
Dew Point
11°F
7 PM
22°F
10%
11mph
SSE
Cloudy
Humidity
65%
Feels like
11°F
Dew Point
12°F
8 PM
23°F
10%
12mph
SSE
Mostly Cloudy
Humidity
66%
Feels like
11°F
Dew Point
13°F
9 PM
24°F
10%
12mph
SSE
Mostly Cloudy
Humidity
67%
Feels like
12°F
Dew Point
15°F
10 PM
24°F
10%
12mph
S
Mostly Cloudy
Humidity
69%
Feels like
13°F
Dew Point
16°F
11 PM
25°F
0%
12mph
S
Cloudy
Humidity
70%
Feels like
14°F
Dew Point
17°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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