Hourly Weather Forecast - Petersburg, IL

12 AM
19°F
10%
5mph
NNE
Mostly Cloudy
Humidity
77%
Feels like
12°F
Dew Point
13°F
1 AM
18°F
10%
5mph
NNE
Mostly Cloudy
Humidity
78%
Feels like
11°F
Dew Point
13°F
2 AM
17°F
10%
5mph
NNE
Mostly Cloudy
Humidity
78%
Feels like
10°F
Dew Point
12°F
3 AM
17°F
20%
6mph
N
Mostly Cloudy
Humidity
79%
Feels like
8°F
Dew Point
11°F
4 AM
16°F
20%
6mph
N
Mostly Cloudy
Humidity
79%
Feels like
7°F
Dew Point
11°F
5 AM
15°F
20%
6mph
N
Mostly Cloudy
Humidity
80%
Feels like
7°F
Dew Point
10°F
6 AM
15°F
20%
6mph
N
Mostly Cloudy
Humidity
80%
Feels like
6°F
Dew Point
10°F
7 AM
15°F
20%
5mph
N
Mostly Cloudy
Humidity
79%
Feels like
7°F
Dew Point
10°F
7:05 AM
8 AM
17°F
10%
5mph
N
Mostly Cloudy
Humidity
77%
Feels like
8°F
Dew Point
11°F
9 AM
18°F
10%
5mph
N
Partly Cloudy
Humidity
75%
Feels like
10°F
Dew Point
11°F
10 AM
20°F
10%
5mph
N
Partly Cloudy
Humidity
71%
Feels like
12°F
Dew Point
12°F
11 AM
22°F
10%
5mph
N
Partly Cloudy
Humidity
66%
Feels like
15°F
Dew Point
12°F
12 PM
24°F
10%
5mph
N
Partly Cloudy
Humidity
62%
Feels like
17°F
Dew Point
13°F
1 PM
25°F
10%
5mph
NNW
Partly Cloudy
Humidity
59%
Feels like
19°F
Dew Point
13°F
2 PM
27°F
0%
6mph
NNW
Partly Cloudy
Humidity
56%
Feels like
20°F
Dew Point
13°F
3 PM
27°F
0%
5mph
NNW
Partly Cloudy
Humidity
55%
Feels like
21°F
Dew Point
13°F
4 PM
26°F
0%
5mph
NW
Partly Cloudy
Humidity
58%
Feels like
20°F
Dew Point
13°F
5 PM
24°F
0%
4mph
NW
Partly Cloudy
Humidity
63%
Feels like
19°F
Dew Point
13°F
5:22 PM
6 PM
22°F
0%
4mph
WNW
Partly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
13°F
7 PM
21°F
0%
4mph
WNW
Mostly Clear
Humidity
70%
Feels like
16°F
Dew Point
13°F
8 PM
20°F
0%
4mph
WNW
Mostly Clear
Humidity
72%
Feels like
14°F
Dew Point
12°F
9 PM
19°F
0%
4mph
WNW
Clear
Humidity
73%
Feels like
13°F
Dew Point
11°F
10 PM
18°F
0%
4mph
WNW
Clear
Humidity
73%
Feels like
12°F
Dew Point
11°F
11 PM
17°F
0%
4mph
WNW
Mostly Clear
Humidity
72%
Feels like
11°F
Dew Point
10°F

Snow Forecast through Sunday

Significant Snowstorm Blankets the Southeast

A coastal storm system forming off the Carolina coastline will cover southern Appalachia to the Outer Banks in snow through Sunday morning.

Saturday's Low Temperatures

Incredible Cold Holds Through The Weekend

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for January 29, 2026

Potent Storm System Brings Mixed Results to Drought Across the U.S.

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Flu Update Valid For Week Ending January 24, 2026

Weekly Flu Update: Flu Activity Trend Going Up Again

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