Hourly Weather Forecast - Petersburg, IL

12 AM
38°F
0%
5mph
SE
Mostly Cloudy
Humidity
79%
Feels like
35°F
Dew Point
32°F
1 AM
38°F
10%
4mph
ESE
Mostly Cloudy
Humidity
82%
Feels like
34°F
Dew Point
33°F
2 AM
37°F
10%
4mph
ESE
Mostly Cloudy
Humidity
84%
Feels like
34°F
Dew Point
33°F
3 AM
37°F
20%
4mph
E
Mostly Cloudy
Humidity
85%
Feels like
34°F
Dew Point
33°F
4 AM
37°F
30%
5mph
E
30% Chance of Light Rain
Humidity
87%
Feels like
33°F
Dew Point
34°F
5 AM
37°F
50%
5mph
E
50% Chance of Light Rain
Humidity
88%
Feels like
33°F
Dew Point
34°F
6 AM
38°F
50%
5mph
ESE
50% Chance of Light Rain
Humidity
89%
Feels like
33°F
Dew Point
35°F
6:30 AM
7 AM
38°F
60%
5mph
ESE
60% Chance of Rain
Humidity
91%
Feels like
34°F
Dew Point
36°F
8 AM
38°F
50%
5mph
ESE
50% Chance of Light Rain
Humidity
92%
Feels like
35°F
Dew Point
37°F
9 AM
40°F
30%
4mph
ESE
30% Chance of Light Rain
Humidity
92%
Feels like
37°F
Dew Point
37°F
10 AM
41°F
20%
5mph
ESE
Cloudy
Humidity
91%
Feels like
38°F
Dew Point
38°F
11 AM
43°F
20%
4mph
ESE
Cloudy
Humidity
88%
Feels like
40°F
Dew Point
40°F
12 PM
45°F
20%
4mph
ESE
Cloudy
Humidity
85%
Feels like
43°F
Dew Point
41°F
1 PM
46°F
30%
4mph
E
30% Chance of Light Rain
Humidity
83%
Feels like
45°F
Dew Point
41°F
2 PM
47°F
40%
4mph
ENE
40% Chance of Light Rain
Humidity
82%
Feels like
46°F
Dew Point
42°F
3 PM
48°F
40%
4mph
NE
40% Chance of Light Rain
Humidity
81%
Feels like
46°F
Dew Point
43°F
4 PM
47°F
40%
5mph
NE
40% Chance of Light Rain
Humidity
83%
Feels like
45°F
Dew Point
43°F
5 PM
47°F
50%
5mph
NE
50% Chance of Light Rain
Humidity
86%
Feels like
44°F
Dew Point
43°F
5:53 PM
6 PM
46°F
60%
5mph
NE
60% Chance of Rain
Humidity
89%
Feels like
43°F
Dew Point
43°F
7 PM
45°F
50%
6mph
NE
50% Chance of Rain
Humidity
90%
Feels like
42°F
Dew Point
43°F
8 PM
45°F
50%
6mph
NE
50% Chance of Rain
Humidity
92%
Feels like
42°F
Dew Point
43°F
9 PM
45°F
80%
7mph
ENE
80% Chance of Rain
Humidity
92%
Feels like
41°F
Dew Point
43°F
10 PM
44°F
80%
6mph
ENE
80% Chance of Rain
Humidity
92%
Feels like
41°F
Dew Point
42°F
11 PM
44°F
80%
6mph
ENE
80% Chance of Rain
Humidity
91%
Feels like
40°F
Dew Point
42°F

Snow and Ice Accumulations through Tuesday

Wintry Disturbance Hits Northeastern U.S.

A wintry disturbance will continue northeastward, buffeting the northeastern U.S. with light snow, freezing rain, and plain rain through Tuesday night.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

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