Weather forecast for tomorrow
Union, IL

Weather forecast for tomorrow

Wednesday, Jun 18.

Thunderstorms
5:15 am

8:35 pm
CDT
Thunderstorms
73°F / 61°F
  • Wind: 11mph E
  • Humidity: 88%
  • Precip. probability: 92%
  • Precipitation: 1.02"
  • UV index: 4
Tomorrow, moderate to strong thunderstorms are in the outlook.
Increased precipitation is anticipated. The temperature is predicted to vary between a maximum of a moderately hot 73.4°F and a minimum of a breezy 60.8°F.
The maximum temperature will align with June's usual high of 76.5°F.
Sunrise will be at 5:15 am and sunset at 8:35 pm; tomorrow's daylight will last for 15h and 19min.

Frequently asked questions

What is the weather forecast for Union for tomorrow?
Tomorrow, changing skies could spark thunderstorms.
Will it rain tomorrow?
Yes, it will rain tomorrow. High precipitation of 1.02" is forecasted.
What will be the maximum temperature tomorrow?
Tomorrow, the maximum temperature will be 73.4°F, while the minimum temperature will be 60.8°F.
The highest temperature will be in line with the average maximum of 76.5°F in June. The lowest temperature will be also in line with the average low of 59°F.
When is the sunrise / sunset tomorrow in Union?
On Wednesday, in Union, sunrise will be at 5:15 am and sunset at 8:35 pm (CDT).
How many hours of daylight will Union have tomorrow?
In Union, tomorrow, there will be 15h and 19min of daylight.

Hourly weather forecast

12 am
  • 72°F
  • Feels like:
    73°F
Cloudy
Cloudy
  • Wind: 3mph SSW
  • Pressure: 29.77"Hg
  • Humidity: 88%
  • Precip. probability: 18%
  • Precipitation: 0"
  • Visibility: 8mi
2 am
  • 70°F
  • Feels like:
    72°F
Cloudy
Cloudy
  • Wind: 2mph SW
  • Pressure: 29.77"Hg
  • Humidity: 92%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 6mi
4 am
  • 68°F
  • Feels like:
    70°F
Showers
Showers
  • Wind: 2mph SW
  • Pressure: 29.77"Hg
  • Humidity: 95%
  • Precip. probability: 37%
  • Precipitation: 0.04"
  • Visibility: 4mi
Sunrise: 5:15 am
6 am
  • 68°F
  • Feels like:
    70°F
Cloudy
Cloudy
  • Wind: 3mph SSW
  • Pressure: 29.77"Hg
  • Humidity: 99%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 4mi
8 am
  • 70°F
  • Feels like:
    73°F
Showers
Showers
  • Wind: 4mph S
  • Pressure: 29.77"Hg
  • Humidity: 90%
  • Precip. probability: 47%
  • Precipitation: 0.04"
  • Visibility: 7mi
10 am
  • 72°F
  • Feels like:
    75°F
Showers
Showers
  • Wind: 6mph SE
  • Pressure: 29.74"Hg
  • Humidity: 87%
  • Precip. probability: 46%
  • Precipitation: 0.04"
  • Visibility: 6mi
12 pm
  • 72°F
  • Feels like:
    75°F
Thunderstorms
Thunderstorms
  • Wind: 6mph ESE
  • Pressure: 29.68"Hg
  • Humidity: 90%
  • Precip. probability: 92%
  • Precipitation: 0.24"
  • Visibility: 4mi
2 pm
  • 72°F
  • Feels like:
    73°F
Thunderstorms
Thunderstorms
  • Wind: 10mph NNE
  • Pressure: 29.65"Hg
  • Humidity: 91%
  • Precip. probability: 74%
  • Precipitation: 0.24"
  • Visibility: 4mi
4 pm
  • 72°F
  • Feels like:
    73°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 9mph N
  • Pressure: 29.65"Hg
  • Humidity: 87%
  • Precip. probability: 44%
  • Precipitation: 0.08"
  • Visibility: 2mi
6 pm
  • 72°F
  • Feels like:
    73°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph N
  • Pressure: 29.65"Hg
  • Humidity: 81%
  • Precip. probability: 12%
  • Precipitation: 0"
  • Visibility: 6mi
8 pm
  • 68°F
  • Feels like:
    70°F
Showers
Showers
  • Wind: 8mph N
  • Pressure: 29.71"Hg
  • Humidity: 87%
  • Precip. probability: 55%
  • Precipitation: 0.04"
  • Visibility: 7mi
Sunset: 8:35 pm
10 pm
  • 66°F
  • Feels like:
    66°F
Cloudy
Cloudy
  • Wind: 7mph NNW
  • Pressure: 29.74"Hg
  • Humidity: 93%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 6mi
Tomorrow, a combination of cloudy, damp and stormy weather is predicted.
Rainfall is forecasted from 3 am to 5 am, and from 8 am to 4 pm and at 8 pm. The most intense rain will be falling at 12 pm, 2 pm and 3 pm.
The temperature will be between a minimum of 64.4°F and a maximum of 73.4°F. The warmest part of the day is anticipated around 11 am.
The maximum temperature will be consistent with the average high of 76.5°F in June. The night temperature will be also similar to the standard June low of 59°F.
Updated: Jun 17, 2025 @ 20:57:44 UTC
Published by: Weather U.S. | About Us
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