Hourly Weather Forecast - Lanark, IL

12 AM
26°F
0%
8mph
WNW
Partly Cloudy
Humidity
73%
Feels like
17°F
Dew Point
18°F
1 AM
25°F
0%
8mph
WNW
Partly Cloudy
Humidity
72%
Feels like
16°F
Dew Point
17°F
2 AM
24°F
0%
8mph
WNW
Mostly Cloudy
Humidity
71%
Feels like
15°F
Dew Point
16°F
3 AM
23°F
0%
8mph
NW
Mostly Cloudy
Humidity
71%
Feels like
14°F
Dew Point
15°F
4 AM
22°F
0%
8mph
NW
Partly Cloudy
Humidity
70%
Feels like
13°F
Dew Point
14°F
5 AM
22°F
0%
7mph
NW
Partly Cloudy
Humidity
69%
Feels like
13°F
Dew Point
13°F
6 AM
21°F
0%
7mph
NW
Partly Cloudy
Humidity
68%
Feels like
12°F
Dew Point
12°F
7 AM
21°F
10%
7mph
NW
Partly Cloudy
Humidity
67%
Feels like
12°F
Dew Point
11°F
7:24 AM
8 AM
21°F
10%
6mph
NW
Mostly Cloudy
Humidity
66%
Feels like
12°F
Dew Point
11°F
9 AM
21°F
10%
6mph
NW
Mostly Cloudy
Humidity
65%
Feels like
13°F
Dew Point
11°F
10 AM
22°F
10%
6mph
NW
Cloudy
Humidity
62%
Feels like
15°F
Dew Point
11°F
11 AM
24°F
10%
6mph
NW
Mostly Cloudy
Humidity
59%
Feels like
17°F
Dew Point
11°F
12 PM
25°F
10%
5mph
NW
Mostly Cloudy
Humidity
57%
Feels like
18°F
Dew Point
12°F
1 PM
26°F
10%
5mph
NW
Cloudy
Humidity
55%
Feels like
19°F
Dew Point
12°F
2 PM
26°F
10%
5mph
NW
Cloudy
Humidity
55%
Feels like
20°F
Dew Point
12°F
3 PM
26°F
10%
5mph
NNW
Cloudy
Humidity
55%
Feels like
20°F
Dew Point
12°F
4 PM
25°F
10%
4mph
NNW
Cloudy
Humidity
57%
Feels like
20°F
Dew Point
12°F
4:30 PM
5 PM
24°F
10%
4mph
N
Cloudy
Humidity
60%
Feels like
19°F
Dew Point
12°F
6 PM
23°F
10%
3mph
N
Cloudy
Humidity
62%
Feels like
19°F
Dew Point
12°F
7 PM
22°F
10%
3mph
NNE
Cloudy
Humidity
64%
Feels like
18°F
Dew Point
12°F
8 PM
22°F
20%
3mph
NE
Cloudy
Humidity
65%
Feels like
17°F
Dew Point
12°F
9 PM
21°F
10%
4mph
ENE
Cloudy
Humidity
66%
Feels like
16°F
Dew Point
11°F
10 PM
21°F
10%
4mph
E
Cloudy
Humidity
66%
Feels like
16°F
Dew Point
11°F
11 PM
20°F
10%
4mph
E
Cloudy
Humidity
66%
Feels like
15°F
Dew Point
11°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

Wednesday'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