Hourly Weather Forecast - Potomac, IL

12 AM
26°F
0%
13mph
S
Mostly Clear
Humidity
65%
Feels like
15°F
Dew Point
16°F
1 AM
26°F
0%
13mph
S
Partly Cloudy
Humidity
66%
Feels like
15°F
Dew Point
16°F
2 AM
27°F
0%
13mph
S
Partly Cloudy
Humidity
66%
Feels like
16°F
Dew Point
17°F
3 AM
27°F
0%
13mph
S
Mostly Cloudy
Humidity
67%
Feels like
16°F
Dew Point
18°F
4 AM
28°F
10%
13mph
S
Mostly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
19°F
5 AM
28°F
10%
14mph
S
Partly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
19°F
6 AM
29°F
10%
14mph
S
Partly Cloudy
Humidity
69%
Feels like
18°F
Dew Point
20°F
7 AM
31°F
10%
14mph
S
Partly Cloudy
Humidity
69%
Feels like
20°F
Dew Point
22°F
7:09 AM
8 AM
32°F
10%
14mph
S
Partly Cloudy
Humidity
70%
Feels like
22°F
Dew Point
23°F
9 AM
34°F
10%
15mph
S
Mostly Sunny
Humidity
69%
Feels like
25°F
Dew Point
25°F
10 AM
36°F
30%
15mph
S
30% Chance Rain Showers
Humidity
67%
Feels like
27°F
Dew Point
27°F
11 AM
39°F
30%
15mph
SSW
30% Chance Rain Showers
Humidity
65%
Feels like
30°F
Dew Point
28°F
12 PM
41°F
30%
15mph
SSW
30% Chance Rain Showers
Humidity
64%
Feels like
33°F
Dew Point
29°F
1 PM
42°F
30%
15mph
SSW
30% Chance Rain Showers
Humidity
64%
Feels like
34°F
Dew Point
31°F
2 PM
43°F
30%
14mph
SSW
30% Chance Rain Showers
Humidity
66%
Feels like
36°F
Dew Point
32°F
3 PM
43°F
30%
13mph
SSW
30% Chance Rain Showers
Humidity
69%
Feels like
36°F
Dew Point
33°F
4 PM
42°F
30%
12mph
SSW
30% Chance Rain Showers
Humidity
73%
Feels like
35°F
Dew Point
34°F
4:27 PM
5 PM
40°F
30%
10mph
SSW
30% Chance Rain Showers
Humidity
78%
Feels like
34°F
Dew Point
34°F
6 PM
39°F
30%
9mph
SSW
30% Chance Rain Showers
Humidity
82%
Feels like
32°F
Dew Point
34°F
7 PM
38°F
20%
9mph
SSW
Partly Cloudy
Humidity
85%
Feels like
31°F
Dew Point
34°F
8 PM
37°F
20%
9mph
SW
Mostly Clear
Humidity
86%
Feels like
31°F
Dew Point
34°F
9 PM
37°F
20%
9mph
SW
Mostly Clear
Humidity
87%
Feels like
30°F
Dew Point
33°F
10 PM
37°F
20%
9mph
SW
Partly Cloudy
Humidity
88%
Feels like
30°F
Dew Point
33°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

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

Cold Air Damming - Cause And Effects

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