Hourly Weather Forecast - Lanark, IL

12 AM
20°F
10%
4mph
ESE
Cloudy
Humidity
66%
Feels like
15°F
Dew Point
11°F
1 AM
20°F
10%
4mph
ESE
Mostly Cloudy
Humidity
67%
Feels like
14°F
Dew Point
11°F
2 AM
20°F
10%
5mph
ESE
Mostly Cloudy
Humidity
67%
Feels like
13°F
Dew Point
11°F
3 AM
20°F
10%
5mph
ESE
Mostly Cloudy
Humidity
68%
Feels like
13°F
Dew Point
11°F
4 AM
20°F
10%
5mph
ESE
Mostly Cloudy
Humidity
68%
Feels like
12°F
Dew Point
11°F
5 AM
20°F
10%
6mph
ESE
Cloudy
Humidity
69%
Feels like
12°F
Dew Point
11°F
6 AM
20°F
10%
6mph
ESE
Cloudy
Humidity
69%
Feels like
12°F
Dew Point
12°F
7 AM
21°F
10%
6mph
ESE
Cloudy
Humidity
71%
Feels like
13°F
Dew Point
13°F
7:24 AM
8 AM
22°F
10%
6mph
ESE
Cloudy
Humidity
72%
Feels like
14°F
Dew Point
14°F
9 AM
23°F
10%
6mph
SE
Mostly Cloudy
Humidity
72%
Feels like
16°F
Dew Point
16°F
10 AM
26°F
10%
6mph
SE
Mostly Cloudy
Humidity
71%
Feels like
18°F
Dew Point
17°F
11 AM
28°F
10%
7mph
SE
Mostly Cloudy
Humidity
68%
Feels like
21°F
Dew Point
19°F
12 PM
31°F
10%
7mph
SE
Partly Cloudy
Humidity
65%
Feels like
23°F
Dew Point
20°F
1 PM
32°F
10%
8mph
SE
Partly Cloudy
Humidity
64%
Feels like
25°F
Dew Point
21°F
2 PM
33°F
10%
8mph
SE
Partly Cloudy
Humidity
63%
Feels like
26°F
Dew Point
22°F
3 PM
33°F
10%
8mph
SE
Partly Cloudy
Humidity
63%
Feels like
26°F
Dew Point
22°F
4 PM
33°F
10%
8mph
SE
Mostly Sunny
Humidity
64%
Feels like
26°F
Dew Point
22°F
4:31 PM
5 PM
31°F
10%
8mph
SE
Mostly Clear
Humidity
66%
Feels like
24°F
Dew Point
22°F
6 PM
31°F
10%
8mph
SE
Mostly Clear
Humidity
69%
Feels like
23°F
Dew Point
22°F
7 PM
30°F
10%
8mph
SSE
Mostly Clear
Humidity
71%
Feels like
23°F
Dew Point
22°F
8 PM
30°F
10%
9mph
SSE
Partly Cloudy
Humidity
74%
Feels like
22°F
Dew Point
23°F
9 PM
30°F
10%
9mph
SSE
Partly Cloudy
Humidity
76%
Feels like
22°F
Dew Point
23°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday'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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide