Hourly Weather Forecast - Petersburg, IL

9 AM
18°F
10%
25mph
WNW
Windy
Humidity
83%
Feels like
0°F
Dew Point
14°F
10 AM
18°F
10%
25mph
WNW
Windy
Humidity
81%
Feels like
0°F
Dew Point
13°F
11 AM
19°F
30%
25mph
WNW
30% Chance of Snow
Humidity
78%
Feels like
1°F
Dew Point
13°F
12 PM
20°F
10%
24mph
WNW
Windy
Humidity
75%
Feels like
3°F
Dew Point
14°F
1 PM
22°F
30%
23mph
WNW
30% Chance of Snow
Humidity
71%
Feels like
5°F
Dew Point
14°F
2 PM
23°F
0%
23mph
WNW
Windy
Humidity
68%
Feels like
7°F
Dew Point
14°F
3 PM
24°F
0%
23mph
WNW
Windy
Humidity
64%
Feels like
9°F
Dew Point
13°F
4 PM
24°F
0%
22mph
WNW
Windy
Humidity
62%
Feels like
9°F
Dew Point
13°F
5 PM
24°F
0%
21mph
WNW
Windy
Humidity
60%
Feels like
9°F
Dew Point
12°F
6 PM
23°F
0%
19mph
WNW
Mostly Cloudy
Humidity
60%
Feels like
9°F
Dew Point
11°F
7 PM
22°F
0%
18mph
WNW
Mostly Cloudy
Humidity
60%
Feels like
8°F
Dew Point
11°F
7:07 PM
8 PM
21°F
0%
17mph
WNW
Mostly Cloudy
Humidity
59%
Feels like
7°F
Dew Point
9°F
9 PM
20°F
30%
17mph
WNW
30% Chance of Snow
Humidity
58%
Feels like
6°F
Dew Point
8°F
10 PM
19°F
30%
17mph
WNW
30% Chance of Snow
Humidity
59%
Feels like
4°F
Dew Point
7°F
11 PM
18°F
30%
16mph
WNW
30% Chance of Snow
Humidity
59%
Feels like
3°F
Dew Point
6°F

Today's Severe Weather Outlook

Dangerous Storms Take Aim At The Eastern U.S.

After more than 400 reports of severe weather on Sunday, a greater risk of dangerous thunderstorms exists today.

Snow and Ice Forecast Through Tuesday Evening

Snow, High Winds Plague Great Lakes With Blizzard Conditions

Today's Weather Outlook

Today's Weather Outlook

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Weekly Drought Map for March 12, 2026

Widespread Drought Improvement For The South, Midwest

Blizzard: Its True Definition

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