Hourly Weather Forecast - Petersburg, IL

12 AM
49°F
0%
4mph
ENE
Mostly Cloudy
Humidity
79%
Feels like
49°F
Dew Point
43°F
1 AM
48°F
0%
3mph
ENE
Mostly Cloudy
Humidity
80%
Feels like
48°F
Dew Point
43°F
2 AM
47°F
0%
3mph
E
Mostly Cloudy
Humidity
82%
Feels like
46°F
Dew Point
42°F
3 AM
47°F
0%
4mph
ESE
Mostly Cloudy
Humidity
83%
Feels like
45°F
Dew Point
42°F
4 AM
46°F
0%
4mph
ESE
Mostly Cloudy
Humidity
85%
Feels like
44°F
Dew Point
42°F
5 AM
45°F
0%
4mph
SSE
Partly Cloudy
Humidity
86%
Feels like
43°F
Dew Point
41°F
6 AM
45°F
0%
4mph
S
Partly Cloudy
Humidity
86%
Feels like
42°F
Dew Point
41°F
7 AM
45°F
0%
6mph
S
Partly Cloudy
Humidity
85%
Feels like
42°F
Dew Point
41°F
7:03 AM
8 AM
47°F
0%
6mph
SSW
Partly Cloudy
Humidity
82%
Feels like
45°F
Dew Point
42°F
9 AM
51°F
0%
6mph
SSW
Partly Cloudy
Humidity
76%
Feels like
51°F
Dew Point
44°F
10 AM
55°F
0%
7mph
SW
Partly Cloudy
Humidity
70%
Feels like
55°F
Dew Point
45°F
11 AM
58°F
0%
8mph
SW
Partly Cloudy
Humidity
64%
Feels like
58°F
Dew Point
46°F
12 PM
62°F
0%
9mph
SW
Mostly Sunny
Humidity
57%
Feels like
62°F
Dew Point
47°F
1 PM
65°F
0%
10mph
WSW
Partly Cloudy
Humidity
52%
Feels like
65°F
Dew Point
47°F
2 PM
68°F
0%
11mph
WSW
Mostly Sunny
Humidity
48%
Feels like
68°F
Dew Point
48°F
3 PM
70°F
0%
11mph
WSW
Mostly Sunny
Humidity
46%
Feels like
70°F
Dew Point
48°F
4 PM
71°F
0%
11mph
WSW
Mostly Sunny
Humidity
45%
Feels like
71°F
Dew Point
48°F
5 PM
70°F
0%
11mph
WSW
Mostly Sunny
Humidity
47%
Feels like
70°F
Dew Point
48°F
6 PM
68°F
0%
9mph
SW
Sunny
Humidity
51%
Feels like
68°F
Dew Point
49°F
7 PM
65°F
0%
8mph
SW
Sunny
Humidity
55%
Feels like
65°F
Dew Point
49°F
7:11 PM
8 PM
63°F
0%
7mph
SW
Clear
Humidity
59%
Feels like
63°F
Dew Point
49°F
9 PM
60°F
0%
6mph
SW
Clear
Humidity
65%
Feels like
60°F
Dew Point
48°F
10 PM
58°F
0%
6mph
SW
Clear
Humidity
69%
Feels like
58°F
Dew Point
48°F
11 PM
57°F
10%
6mph
SW
Clear
Humidity
71%
Feels like
57°F
Dew Point
47°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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