Hourly Weather Forecast - Petersburg, IL

2 PM
32°F
0%
5mph
SE
Mostly Sunny
Humidity
39%
Feels like
27°F
Dew Point
10°F
3 PM
32°F
0%
5mph
SE
Mostly Sunny
Humidity
40%
Feels like
27°F
Dew Point
10°F
4 PM
31°F
0%
5mph
SE
Sunny
Humidity
43%
Feels like
26°F
Dew Point
11°F
5 PM
29°F
0%
6mph
SE
Mostly Sunny
Humidity
49%
Feels like
24°F
Dew Point
13°F
5:25 PM
6 PM
28°F
0%
6mph
SE
Partly Cloudy
Humidity
54%
Feels like
21°F
Dew Point
14°F
7 PM
27°F
0%
7mph
SE
Mostly Clear
Humidity
58%
Feels like
20°F
Dew Point
14°F
8 PM
26°F
0%
8mph
SE
Partly Cloudy
Humidity
61%
Feels like
18°F
Dew Point
15°F
9 PM
26°F
0%
8mph
SE
Partly Cloudy
Humidity
63%
Feels like
17°F
Dew Point
15°F
10 PM
26°F
0%
9mph
SE
Partly Cloudy
Humidity
65%
Feels like
17°F
Dew Point
16°F
11 PM
26°F
0%
9mph
SE
Partly Cloudy
Humidity
66%
Feels like
16°F
Dew Point
16°F

Sunday Morning's Low Temperatures

Snow, Record-Breaking Cold Impacts Great Lakes & Northeast

Frigid temperatures, high winds, and snow headed to a large portion of the eastern U.S. through this weekend.

Weekend Weather Outlook

Weekend Weather Outlook

Image courtesy of Pixabay.com

All About Snow Squalls

Weekly Drought Map for February 5, 2026

Scarce Precipitation Leads to Widespread Drought Degradation

Image by Frauke Feind from Pixabay

During Strong Winds: Stay Ready

Windchill chart

Dangers of Wind Chills

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide