Weather forecast for tomorrow
Harristown, IL

Weather forecast for tomorrow

Tuesday, Jun 17.

AM Clouds / PM Sun
5:25 am

8:28 pm
CDT
AM Clouds / PM Sun
88°F / 72°F
  • Wind: 6mph SSW
  • Humidity: 72%
  • Precip. probability: 13%
  • Precipitation: 0"
  • UV index: 9
Tomorrow, on Tuesday, June 17, cloudy skies are also expected in the morning. However, sunshine will break through by the afternoon.
The temperature variation is anticipated to range from a maximum of a blazing 87.8°F to a minimum of a pleasant 71.6°F.
The maximum heat index, which combines air temperature and relative humidity, is assessed at a very hot 100.4°F. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Forecast models suggest hotter conditions, with a peak that mirrors July's climate average rather than June's.
Sunrise will be at 5:25 am and sunset at 8:28 pm; tomorrow's daylight will last for 15h and 3min.

Frequently asked questions

What is the weather forecast for Harristown for tomorrow?
Tomorrow, in Harristown, cloudy skies are expected in the morning. However, sunshine will break through by the afternoon.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature in Harristown will be 87.8°F, while the lowest temperature will be 71.6°F. The maximum heat index, which combines air temperature and relative humidity, is estimated at 100.4°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 80.6°F in June. The lowest temperature will be also moderately higher than the average low of 64°F.
When are sunrise and sunset tomorrow?
On Tuesday, in Harristown, sunrise will be at 5:25 am and sunset at 8:28 pm (CDT).
How long will the day be tomorrow?
In Harristown, tomorrow, there will be 15h and 3min of daylight.

Hourly weather forecast

12 am
  • 72°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph S
  • Pressure: 29.85"Hg
  • Humidity: 95%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 70°F
  • Feels like:
    70°F
Cloudy
Cloudy
  • Wind: 4mph S
  • Pressure: 29.85"Hg
  • Humidity: 97%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 7mi
4 am
  • 70°F
  • Feels like:
    70°F
Cloudy
Cloudy
  • Wind: 2mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 98%
  • Precip. probability: 7%
  • Precipitation: 0"
  • Visibility: 2mi
Sunrise: 5:25 am
6 am
  • 70°F
  • Feels like:
    72°F
Cloudy
Cloudy
  • Wind: 3mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 100%
  • Precip. probability: 10%
  • Precipitation: 0"
  • Visibility: 1mi
8 am
  • 73°F
  • Feels like:
    75°F
Cloudy
Cloudy
  • Wind: 4mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 94%
  • Precip. probability: 13%
  • Precipitation: 0"
  • Visibility: 2mi
10 am
  • 77°F
  • Feels like:
    82°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph S
  • Pressure: 29.83"Hg
  • Humidity: 79%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 82°F
  • Feels like:
    88°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 69%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 86°F
  • Feels like:
    91°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph SSW
  • Pressure: 29.8"Hg
  • Humidity: 62%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 86°F
  • Feels like:
    91°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SSW
  • Pressure: 29.77"Hg
  • Humidity: 59%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 86°F
  • Feels like:
    91°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SSW
  • Pressure: 29.74"Hg
  • Humidity: 59%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 82°F
  • Feels like:
    88°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph SSW
  • Pressure: 29.74"Hg
  • Humidity: 69%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:28 pm
10 pm
  • 77°F
  • Feels like:
    82°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph S
  • Pressure: 29.77"Hg
  • Humidity: 79%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, on Tuesday, primarily cloudy and occasionally low-visibility weather is forecasted.
The temperature will be between the lowest temperature of 69.8°F and the highest temperature of 86°F. The hottest part of the day will be from 2 pm to 6 pm.
The maximum temperature will be more alike with July's average high of 82°F than June's 80.6°F. The expected low will be also more consistent with what’s common in July than the current June average of 64°F.
Updated: Jun 17, 2025 @ 02:34:42 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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