Petersburg, IL

Weather

As ofJul 06, 2026 9:26 PM

Current Temperature

74degrees Fahrenheit

Feels like:74°

Hi:82°Lo:66°

30% Chance of Storms

Petersburg, IL weather radar map

Windchill: 74°
Daily Rain: 0.24"
Dew point: 72°
Monthly Rain: 0.44"
Humidity: 94%
Avg. Wind: N 0 mph
Pressure: 30.02" →
Wind Gust: 0 mph
Sunrise: 5:36 AM
Moon: Waning Gibbous
Sunset: 8:31 PM
UV Index: 7 (High)

Tonight
Lo
Partly cloudy. A slight chance of showers and thunderstorms this evening. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.
Tomorrow
Hi
Sunny. Highs in the mid 80s. Northeast winds around 5 mph.

Petersburg, IL 10-day weather forecast

FEATURED VIDEOS

Downed Trees Damage Backyard Pool as Severe Weather Hits Chicago Area — Tree crushes backyard pool

Air Quality Index: 30|Fair
Top Triggers:: pm25

View Today's Air Quality details for Petersburg, IL

Pollen Count: 4.4|Low-Medium
Predominant Pollen:: Grass, Nettle

Petersburg, IL Pollen forecast details

Closest strike in the last 30 minutes:303.3 miles

No Lightning Nearby

Petersburg, IL real-time lightning alerts & live Map

Today's Severe Weather Outlook

Slow-Moving Disturbance Set to Soak Northeast

Periods of rain and embedded thunderstorms will occur across parts of southern New England into the northern Mid-Atlantic today into Tuesday. Some of the rain will be heavy at times and could lead to localized flooding concerns.

Tuesday's Weather Outlook

Tuesday's Weather Outlook

Drought Monitor for July 2, 2026

Stormy, Soggy Summertime Leads to Widespread Drought Improvements

This house is flooded by the Cross Lake near Shreveport, La. Submitted by WeatherBug user Mary Nash on March 9, 2016.

Flood Safety Tips

Dry and cracking mud (Wikimedia Commons)

How Drought Affects Your Home And Garden

Young bearded man using electric fan at home. (EugeneEdge via Shutterstock)

How to Stay Cool When There's No A.C.

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