Weather forecast for tomorrow
Petersburg, IL

Weather forecast for tomorrow

Monday, Jun 16.

PM Thunderstorms
5:28 am

8:32 pm
CDT
PM Thunderstorms
82°F / 68°F
  • Wind: 6mph SE
  • Humidity: 75%
  • Precip. probability: 36%
  • Precipitation: 0.12"
  • UV index: 6
Tomorrow, in Petersburg, rumbles of thunder are possible along with moderate rain in the afternoon.
Minimal precipitation is predicted. The maximum anticipated temperature is a moderately hot 82.4°F, while the minimum temperature will be an agreeable 68°F.
The maximum heat index, which combines air temperature and relative humidity, is appraised at a blazing 87.8°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The expected maximum is forecasted to be in line with the regular June temperature of 81°F.
Sunrise will be at 5:28 am and sunset at 8:32 pm; tomorrow's daylight will last for 15h and 4min.

Frequently asked questions

What is the weather forecast for Petersburg for tomorrow?
Tomorrow, stormy weather with frequent thunder and rain bursts is expected.
Will it rain tomorrow?
Tomorrow, there is a low probability of minimal rainfall in Petersburg.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 82.4°F, while the lowest temperature will be 68°F. The maximum heat index, which modifies the air temperature to account for humidity, is appraised at 87.8°F.
The maximum temperature will be in line with the average highest temperature of 81°F in June. The lowest temperature will be relatively higher than the average low of 64.2°F.
When is the sunrise / sunset tomorrow?
On Monday, in Petersburg, sunrise will be at 5:28 am and sunset at 8:32 pm (CDT).
How many hours of daylight will Petersburg have tomorrow?
In Petersburg, the length of the day tomorrow will be 15h and 4min.

Hourly weather forecast

12 am
  • 72°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Wind: 2mph E
  • Pressure: 29.97"Hg
  • Humidity: 94%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 70°F
  • Feels like:
    70°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 3mph E
  • Pressure: 29.97"Hg
  • Humidity: 90%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 68°F
  • Feels like:
    68°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 3mph E
  • Pressure: 29.94"Hg
  • Humidity: 94%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 7mi
Sunrise: 5:28 am
6 am
  • 68°F
  • Feels like:
    70°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 2mph E
  • Pressure: 29.94"Hg
  • Humidity: 97%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 5mi
8 am
  • 72°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph E
  • Pressure: 29.94"Hg
  • Humidity: 89%
  • Precip. probability: 10%
  • Precipitation: 0"
  • Visibility: 8mi
10 am
  • 77°F
  • Feels like:
    81°F
Cloudy
Cloudy
  • Wind: 4mph ESE
  • Pressure: 29.94"Hg
  • Humidity: 78%
  • Precip. probability: 12%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 81°F
  • Feels like:
    84°F
Cloudy
Cloudy
  • Wind: 4mph SE
  • Pressure: 29.91"Hg
  • Humidity: 72%
  • Precip. probability: 17%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 82°F
  • Feels like:
    86°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 6mph SSE
  • Pressure: 29.88"Hg
  • Humidity: 67%
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Visibility: 9mi
4 pm
  • 81°F
  • Feels like:
    84°F
Cloudy
Cloudy
  • Wind: 6mph SSE
  • Pressure: 29.85"Hg
  • Humidity: 71%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 81°F
  • Feels like:
    86°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph SSE
  • Pressure: 29.83"Hg
  • Humidity: 69%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 77°F
  • Feels like:
    82°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 3mph SSE
  • Pressure: 29.8"Hg
  • Humidity: 79%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:32 pm
10 pm
  • 73°F
  • Feels like:
    77°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph SSE
  • Pressure: 29.8"Hg
  • Humidity: 90%
  • Precip. probability: 7%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, primarily dull and occasionally unstable weather is anticipated.
Rainfall is predicted at 2 pm and 3 pm. With light precipitation of 0.12", most rainfall is expected at 3 pm.
The temperature will be between the lowest temperature of 68°F and the highest temperature of 82.4°F. The warmest part of the day is expected around 2 pm.
The maximum temperature will be comparable to the average high of 81°F in June. The lowest temperature is expected to be also a few degrees higher than the average minimum in June, typically 64.2°F.
Updated: Jun 16, 2025 @ 03:07:53 UTC
Published by: Weather U.S. | About Us
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