Weather forecast for tomorrow
Princeton, IL

Weather forecast for tomorrow

Tuesday, Jun 17.

PM Thunderstorms
5:22 am

8:35 pm
CDT
PM Thunderstorms
88°F / 66°F
  • Wind: 11mph SW
  • Humidity: 63%
  • Precip. probability: 48%
  • Precipitation: 0.91"
  • UV index: 8
On Tuesday, in Princeton, isolated thunderstorms are expected with brief heavy rain.
Substantial precipitation is anticipated for tomorrow. The temperature will fluctuate from a high of a tropical 87.8°F to a low of a breezy 66.2°F.
The maximum heat index, which indicates how humid air affects the felt temperature, is calculated to be a fiery hot 96.8°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
It will be hotter, as the maximum temperature reflects July's norm of 80.6°F instead of June's.
Sunrise will be at 5:22 am and sunset at 8:35 pm; tomorrow's daylight will last for 15h and 13min.

Frequently asked questions

What is the weather forecast for Princeton for tomorrow?
On Tuesday, rumbles of thunder are possible along with moderate rain in the afternoon.
Will it rain tomorrow in Princeton?
Increased precipitation of 0.91" is forecasted with a high probability.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 87.8°F, while the minimum temperature will be 66.2°F. The maximum heat index, which factors the actual air temperature with the relative humidity, is estimated at 96.8°F.
The highest temperature will be uncommonly higher than the average maximum of 78.6°F in June. The lowest temperature will be moderately higher than the average low of 61.5°F.
When are sunrise and sunset tomorrow?
On Tuesday, in Princeton, sunrise will be at 5:22 am and sunset at 8:35 pm (CDT).
How many hours of daylight will Princeton have tomorrow?
In Princeton, the length of the day tomorrow will be 15h and 13min.

Hourly weather forecast

12 am
  • 72°F
  • Feels like:
    73°F
Mostly Clear
Mostly Clear
  • Wind: 5mph S
  • Pressure: 29.83"Hg
  • Humidity: 85%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 70°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph SSW
  • Pressure: 29.83"Hg
  • Humidity: 86%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 68°F
  • Feels like:
    70°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph SSW
  • Pressure: 29.8"Hg
  • Humidity: 90%
  • Precip. probability: 12%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 5:22 am
6 am
  • 68°F
  • Feels like:
    70°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph SSW
  • Pressure: 29.8"Hg
  • Humidity: 92%
  • Precip. probability: 14%
  • Precipitation: 0"
  • Visibility: 7mi
8 am
  • 73°F
  • Feels like:
    75°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SW
  • Pressure: 29.8"Hg
  • Humidity: 81%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 81°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SW
  • Pressure: 29.8"Hg
  • Humidity: 66%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 84°F
  • Feels like:
    88°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph SW
  • Pressure: 29.77"Hg
  • Humidity: 57%
  • Precip. probability: 10%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 86°F
  • Feels like:
    91°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph SW
  • Pressure: 29.77"Hg
  • Humidity: 53%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 86°F
  • Feels like:
    90°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 9mph SW
  • Pressure: 29.74"Hg
  • Humidity: 57%
  • Precip. probability: 37%
  • Precipitation: 0.24"
  • Visibility: 7mi
6 pm
  • 82°F
  • Feels like:
    86°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 8mph WSW
  • Pressure: 29.74"Hg
  • Humidity: 60%
  • Precip. probability: 47%
  • Precipitation: 0.04"
  • Visibility: 7mi
8 pm
  • 77°F
  • Feels like:
    81°F
Showers
Showers
  • Wind: 5mph WSW
  • Pressure: 29.77"Hg
  • Humidity: 69%
  • Precip. probability: 47%
  • Precipitation: 0.04"
  • Visibility: 7mi
Sunset: 8:35 pm
10 pm
  • 73°F
  • Feels like:
    75°F
Showers
Showers
  • Wind: 4mph SSE
  • Pressure: 29.77"Hg
  • Humidity: 83%
  • Precip. probability: 44%
  • Precipitation: 0.04"
  • Visibility: 7mi
Tomorrow, a combination of primarily cloud-filled and occasionally unstable and rain-filled weather is anticipated.
Rainfall is expected from 3 pm to 11 pm. With moderate precipitation of 0.24", most rainfall is expected at 4 pm.
The temperature will be between a minimum of 68°F and a maximum of 86°F. The hottest part of the day will be from 1 pm to 4 pm.
The maximum temperature will be more similar to July's average high of 80.6°F than June's 78.6°F. The lowest temperature is expected to be moderately higher than the average minimum in June, typically 61.5°F.
Updated: Jun 16, 2025 @ 20:30:20 UTC
Published by: Weather U.S. | About Us
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