Weather forecast for 10 days
Petersburg, IL

Weather forecast for the weekend

Saturday, Jun 21.

Sunny
5:29 am

8:33 pm
CDT
Sunny
93°F / 75°F
  • Wind: 16mph SSW
  • Humidity: 65%
  • Precip. probability: 5%
  • Precipitation: 0"
  • UV index: 9
On Saturday, in Petersburg, conditions will remain bright with clear skies.
The temperature will fluctuate from a high of a tropical 93.2°F to a low of a warm 75.2°F.
It will feel hotter, with a temperature more typical of July's average maximum of 82.8°F.
Sunrise will be at 5:29 am and sunset at 8:33 pm; the daylight will last for 15h and 4min.

Sunday, Jun 22.

Sunny
5:29 am

8:33 pm
CDT
Sunny
93°F / 75°F
  • Wind: 14mph SSW
  • Humidity: 62%
  • Precip. probability: 5%
  • Precipitation: 0"
  • UV index: 9
On Sunday, in Petersburg, conditions will remain bright with clear skies.
The temperature is forecasted to oscillate between a maximum of a blazing 93.2°F and a minimum of a temperate 75.2°F.
On Sunday, the forecast leans hotter as the expected high better matches July's average of 82.8°F.
Sunrise will be at 5:29 am and sunset at 8:33 pm; the daylight will last for 15h and 4min.

Frequently asked questions

What is the weather forecast for Petersburg for Saturday?
On Saturday, in Petersburg, clear and sunny conditions are expected.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 93.2°F, while the lowest temperature will be 75.2°F.
What is the weather forecast for Petersburg for Sunday?
On Sunday, conditions remain stable and sunny, with little cloud presence.
What will be the highest temperature in Petersburg on Sunday?
On Sunday, the maximum temperature will be 93.2°F, while the minimum temperature will be 75.2°F.
What is the weather forecast for Petersburg for the next ten days?
In Petersburg, a combination of predominantly sunny and occasionally overcast and rain-filled weather is anticipated for the next ten days.
Will it rain in the next ten days in Petersburg?
Rainfall is expected on Wednesday and next Wednesday in Petersburg. With light precipitation of 0.28", Wednesday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 80.6°F and 93.2°F, while the minimum temperature will be between 64.4°F and 75.2°F.
Combining with the humidity, the maximum feel-like temperature will range between 86°F and 111.2°F.
What will be the hottest and the coldest days?
The hottest days will be Saturday through next Monday, with a maximum of 93.2°F. With a maximum temperature of 80.6°F, Wednesday will be the coldest day.

Long-term weather forecast

MonJun 16.
  • min.
  • 68°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph S
  • Humidity: 84%
  • UV index: 0
  • Precip. probability: 15%
  • Precipitation: 0"
  • 5:28 am 8:32 pm CDT
TueJun 17.
  • 88°F
  • 70°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph SSW
  • Humidity: 73%
  • UV index: 8
  • Precip. probability: 10%
  • Precipitation: 0.16"
  • 5:28 am 8:32 pm CDT
WedJun 18.
  • 81°F
  • 64°F
Showers
Showers
  • Wind: 15mph SW
  • Humidity: 83%
  • UV index: 7
  • Precip. probability: 41%
  • Precipitation: 0.28"
  • 5:28 am 8:32 pm CDT
ThuJun 19.
  • 86°F
  • 68°F
Sunny
Sunny
  • Wind: 8mph W
  • Humidity: 68%
  • UV index: 9
  • Precip. probability: 11%
  • Precipitation: 0"
  • 5:28 am 8:32 pm CDT
FriJun 20.
  • 90°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph S
  • Humidity: 66%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:29 am 8:33 pm CDT
SatJun 21.
  • 93°F
  • 75°F
Sunny
Sunny
  • Wind: 16mph SSW
  • Humidity: 65%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:29 am 8:33 pm CDT
SunJun 22.
  • 93°F
  • 75°F
Sunny
Sunny
  • Wind: 14mph SSW
  • Humidity: 62%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:29 am 8:33 pm CDT
MonJun 23.
  • 93°F
  • 73°F
Sunny
Sunny
  • Wind: 11mph SSW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 9%
  • Precipitation: 0"
  • 5:29 am 8:33 pm CDT
TueJun 24.
  • 91°F
  • 72°F
Sunny
Sunny
  • Wind: 9mph SW
  • Humidity: 64%
  • UV index: 9
  • Precip. probability: 17%
  • Precipitation: 0"
  • 5:30 am 8:33 pm CDT
WedJun 25.
  • 86°F
  • 70°F
Mostly Sunny
Mostly Sunny
  • Wind: 8mph SSW
  • Humidity: 69%
  • UV index: 9
  • Precip. probability: 24%
  • Precipitation: 0.16"
  • 5:30 am 8:33 pm CDT
During the ten-day period, primarily mostly clear and occasionally overcast and rainy weather is expected.
Rainfall is anticipated on Wednesday and next Wednesday.
Substantial differences in temperature are forecasted across the forecast period. Maximum temperatures are forecasted between 80.6°F and 93.2°F, while the lowest temperature will be between 64.4°F and 75.2°F.
The hottest days in Petersburg will be Saturday through next Monday, with a maximum of 93.2°F; expect the coldest day on Wednesday with a high of 80.6°F.
Taking the humidity into consideration, the maximum feel-like temperature may increase considerably and vary between a humid 86°F and a torridly hot 111.2°F.
Updated: Jun 16, 2025 @ 20:34:50 UTC
Published by: Weather U.S. | About Us
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