Weather forecast for tomorrow
Harrisburg, IL

Weather forecast for tomorrow

Saturday, Jun 21.

Sunny
5:31 am

8:20 pm
CDT
Sunny
95°F / 75°F
  • Wind: 11mph SSW
  • Humidity: 65%
  • Precip. probability: 7%
  • Precipitation: 0"
  • UV index: 10
Tomorrow, on Saturday, June 21, the forecast calls for abundant sunshine.
The maximum temperature will be a sizzling 95°F, while the minimum temperature will be a warm 75.2°F.
The maximum heat index, which combines air temperature and relative humidity, is evaluated at a blazing hot 118.4°F. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow, the hotter forecast high of 95°F matches July's pattern over June's.
Sunrise will be at 5:31 am and sunset at 8:20 pm; tomorrow's daylight will last for 14h and 50min.

Frequently asked questions

What is the weather forecast for Harrisburg for tomorrow?
Tomorrow, sunny and dry conditions are anticipated.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 95°F, while the lowest temperature will be 75.2°F. The maximum heat index, which indicates how humid air affects the felt temperature, is computed to be 118.4°F.
The highest temperature tomorrow will be significantly higher than the average maximum of 84.7°F in June. Tomorrow, the lowest temperature will be moderately higher than the average low temperature.
When is the sunrise / sunset tomorrow?
On Saturday, in Harrisburg, sunrise will be at 5:31 am and sunset at 8:20 pm (CDT).
How long will the day be tomorrow in Harrisburg?
In Harrisburg, the length of the day tomorrow will be 14h and 50min.

Hourly weather forecast

12 am
  • 77°F
  • Feels like:
    81°F
Clear
Clear
  • Wind: 6mph S
  • Pressure: 29.97"Hg
  • Humidity: 76%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 77°F
  • Feels like:
    81°F
Clear
Clear
  • Wind: 6mph S
  • Pressure: 29.97"Hg
  • Humidity: 79%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 75°F
  • Feels like:
    79°F
Clear
Clear
  • Wind: 5mph S
  • Pressure: 29.97"Hg
  • Humidity: 83%
  • Precip. probability: 7%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 5:31 am
6 am
  • 75°F
  • Feels like:
    81°F
Mostly Sunny
Mostly Sunny
  • Wind: 5mph S
  • Pressure: 29.97"Hg
  • Humidity: 87%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
8 am
  • 79°F
  • Feels like:
    86°F
Sunny
Sunny
  • Wind: 7mph SSW
  • Pressure: 30"Hg
  • Humidity: 86%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 84°F
  • Feels like:
    95°F
Sunny
Sunny
  • Wind: 9mph SSW
  • Pressure: 30"Hg
  • Humidity: 74%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 90°F
  • Feels like:
    100°F
Sunny
Sunny
  • Wind: 10mph SSW
  • Pressure: 29.97"Hg
  • Humidity: 61%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 93°F
  • Feels like:
    104°F
Sunny
Sunny
  • Wind: 11mph SSW
  • Pressure: 29.97"Hg
  • Humidity: 56%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 93°F
  • Feels like:
    104°F
Sunny
Sunny
  • Wind: 11mph SSW
  • Pressure: 29.94"Hg
  • Humidity: 52%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 91°F
  • Feels like:
    102°F
Sunny
Sunny
  • Wind: 10mph SSW
  • Pressure: 29.94"Hg
  • Humidity: 54%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 88°F
  • Feels like:
    95°F
Sunny
Sunny
  • Wind: 7mph S
  • Pressure: 29.94"Hg
  • Humidity: 64%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:20 pm
10 pm
  • 82°F
  • Feels like:
    91°F
Clear
Clear
  • Wind: 6mph S
  • Pressure: 29.97"Hg
  • Humidity: 74%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, primarily dry and sunny and occasionally overcast weather is forecasted.
The temperature will be between the lowest temperature of 75.2°F and the highest temperature of 93.2°F. The feels-like temperature will vary between a minimum of 78.8°F and a maximum of 104°F. The hottest part of the day will be from 2 pm to 5 pm.
Tomorrow, the high temperature is expected to be more consistent with July than to June's average of 84.7°F. The expected low will be also more consistent with what’s common in July than the current June average of 66.2°F.
Updated: Jun 20, 2025 @ 13:55:33 UTC
Published by: Weather U.S. | About Us
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