Hourly Weather Forecast - Potomac, IL

12 AM
31°F
10%
7mph
WNW
Partly Cloudy
Humidity
83%
Feels like
25°F
Dew Point
27°F
1 AM
30°F
10%
7mph
NW
Partly Cloudy
Humidity
82%
Feels like
24°F
Dew Point
26°F
2 AM
29°F
10%
6mph
NW
Partly Cloudy
Humidity
80%
Feels like
23°F
Dew Point
24°F
3 AM
29°F
10%
6mph
NW
Partly Cloudy
Humidity
78%
Feels like
22°F
Dew Point
23°F
4 AM
28°F
10%
6mph
NW
Partly Cloudy
Humidity
77%
Feels like
22°F
Dew Point
22°F
5 AM
28°F
10%
6mph
NW
Partly Cloudy
Humidity
75%
Feels like
21°F
Dew Point
20°F
6 AM
27°F
10%
6mph
NNW
Partly Cloudy
Humidity
73%
Feels like
21°F
Dew Point
20°F
7 AM
28°F
10%
6mph
NNW
Partly Cloudy
Humidity
71%
Feels like
21°F
Dew Point
19°F
7:10 AM
8 AM
29°F
10%
6mph
NNW
Partly Cloudy
Humidity
68%
Feels like
22°F
Dew Point
20°F
9 AM
30°F
10%
6mph
NNW
Partly Cloudy
Humidity
65%
Feels like
23°F
Dew Point
20°F
10 AM
31°F
10%
6mph
NNW
Mostly Sunny
Humidity
61%
Feels like
25°F
Dew Point
20°F
11 AM
33°F
10%
6mph
NNW
Partly Cloudy
Humidity
56%
Feels like
27°F
Dew Point
19°F
12 PM
35°F
10%
6mph
NNW
Partly Cloudy
Humidity
53%
Feels like
29°F
Dew Point
19°F
1 PM
35°F
10%
6mph
NNW
Partly Cloudy
Humidity
51%
Feels like
30°F
Dew Point
19°F
2 PM
35°F
10%
6mph
NNW
Partly Cloudy
Humidity
51%
Feels like
30°F
Dew Point
19°F
3 PM
35°F
10%
6mph
N
Mostly Cloudy
Humidity
52%
Feels like
29°F
Dew Point
19°F
4 PM
33°F
10%
6mph
N
Mostly Cloudy
Humidity
55%
Feels like
28°F
Dew Point
19°F
4:28 PM
5 PM
31°F
10%
5mph
N
Mostly Cloudy
Humidity
58%
Feels like
26°F
Dew Point
18°F
6 PM
29°F
10%
4mph
N
Mostly Cloudy
Humidity
61%
Feels like
25°F
Dew Point
18°F
7 PM
28°F
10%
4mph
NNE
Mostly Cloudy
Humidity
64%
Feels like
24°F
Dew Point
18°F
8 PM
27°F
10%
4mph
NNE
Mostly Cloudy
Humidity
67%
Feels like
23°F
Dew Point
18°F
9 PM
27°F
10%
4mph
NE
Mostly Cloudy
Humidity
69%
Feels like
22°F
Dew Point
18°F
10 PM
26°F
10%
3mph
NE
Mostly Cloudy
Humidity
70%
Feels like
22°F
Dew Point
18°F
11 PM
26°F
20%
3mph
NE
Mostly Cloudy
Humidity
70%
Feels like
22°F
Dew Point
17°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