Weather forecast for tomorrow
DeKalb, IL

Weather forecast for tomorrow

Tuesday, Jun 17.

PM Thunderstorms
5:17 am

8:34 pm
CDT
PM Thunderstorms
86°F / 66°F
  • Wind: 11mph WSW
  • Humidity: 68%
  • Precip. probability: 61%
  • Precipitation: 0.67"
  • UV index: 7
Tomorrow, on Tuesday, June 17, thunderstorms are forecasted to develop with occasional lightning.
The likelihood of rainfall is high, and precipitation will be moderate. The maximum temperature will be a hot 86°F, while the minimum predicted temperature is a breezy 66.2°F.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is computed to be a very hot 95°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature of 86°F reflects July's climate better than June's.
Sunrise will be at 5:17 am and sunset at 8:34 pm; tomorrow's daylight will last for 15h and 17min.

Frequently asked questions

What is the weather forecast for DeKalb for tomorrow?
On Tuesday, afternoon storms could include thunder and brief downpours.
Will it rain tomorrow?
Moderate precipitation of 0.67" is anticipated. The likelihood of rainfall is 61%.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 86°F, while the minimum temperature will be 66.2°F. The maximum heat index, which combines relative humidity and air temperature, is assessed at 95°F.
The highest temperature will be relatively higher than the average maximum of 77.7°F in June. The lowest temperature will be also a few degrees higher than the average low of 60.1°F.
When is the sunrise / sunset tomorrow?
On Tuesday, in DeKalb, sunrise will be at 5:17 am and sunset at 8:34 pm (CDT).
How long will the day be tomorrow?
Tomorrow, the daylight will last for 15h and 17min.

Hourly weather forecast

12 am
  • 72°F
  • Feels like:
    72°F
Mostly Clear
Mostly Clear
  • Wind: 6mph S
  • Pressure: 29.83"Hg
  • Humidity: 83%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 70°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 88%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 68°F
  • Feels like:
    70°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph SSW
  • Pressure: 29.77"Hg
  • Humidity: 94%
  • Precip. probability: 14%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 5:17 am
6 am
  • 68°F
  • Feels like:
    70°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SW
  • Pressure: 29.8"Hg
  • Humidity: 94%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
8 am
  • 73°F
  • Feels like:
    75°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SW
  • Pressure: 29.8"Hg
  • Humidity: 83%
  • Precip. probability: 7%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 79°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Pressure: 29.8"Hg
  • Humidity: 69%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 82°F
  • Feels like:
    88°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SW
  • Pressure: 29.77"Hg
  • Humidity: 63%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 84°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph WSW
  • Pressure: 29.77"Hg
  • Humidity: 61%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 84°F
  • Feels like:
    90°F
Showers
Showers
  • Wind: 11mph WSW
  • Pressure: 29.74"Hg
  • Humidity: 59%
  • Precip. probability: 48%
  • Precipitation: 0.04"
  • Visibility: 7mi
6 pm
  • 81°F
  • Feels like:
    84°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 8mph WSW
  • Pressure: 29.74"Hg
  • Humidity: 63%
  • Precip. probability: 40%
  • Precipitation: 0.08"
  • Visibility: 7mi
8 pm
  • 77°F
  • Feels like:
    81°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 7mph W
  • Pressure: 29.77"Hg
  • Humidity: 74%
  • Precip. probability: 47%
  • Precipitation: 0.04"
  • Visibility: 7mi
Sunset: 8:34 pm
10 pm
  • 72°F
  • Feels like:
    73°F
Cloudy
Cloudy
  • Wind: 4mph W
  • Pressure: 29.8"Hg
  • Humidity: 87%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 7mi
Tomorrow, a combination of primarily cloudy and occasionally rain-soaked and stormy weather is predicted.
Rainfall is anticipated from 4 pm to 9 pm and at 11 pm. With light precipitation of 0.12", most rainfall is expected at 5 pm.
The temperature will be between a minimum of 68°F and a maximum of 84.2°F. The hottest part of the day will be from 1 pm to 4 pm.
The maximum is expected to resemble July's average high of 80.2°F rather than June's. The minimum temperature will be also more similar to July's average low of 63.1°F than June's typical 60.1°F.
Updated: Jun 16, 2025 @ 20:13:08 UTC
Published by: Weather U.S. | About Us
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