Weather forecast for tomorrow
Union, IA

Weather forecast for tomorrow

Tuesday, Jun 17.

PM Thunderstorms
5:33 am

8:52 pm
CDT
PM Thunderstorms
81°F / 63°F
  • Wind: 9mph NNW
  • Humidity: 76%
  • Precip. probability: 70%
  • Precipitation: 0.67"
  • UV index: 5
Tomorrow, storms with thunder and lightning are also expected during the afternoon.
The chance of rainfall is high, and precipitation will be moderate. The temperature will vary between a maximum of a moderately hot 80.6°F and a minimum of an enjoyable 62.6°F.
The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be 84.2°F.
The forecasted peak temperature will reflect the average June high of 77.5°F.
Sunrise will be at 5:33 am and sunset at 8:52 pm; tomorrow's daylight will last for 15h and 19min.

Frequently asked questions

What is the weather forecast for Union for tomorrow?
On Tuesday, showers and thunder will dominate the later part of the day.
Will it rain tomorrow in Union?
Moderate precipitation of 0.67" is anticipated. The likelihood of rainfall is 70%.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 80.6°F, while the minimum temperature will be 62.6°F. The maximum heat index, which measures the combined effect of heat and moisture, is evaluated at 84.2°F.
The highest temperature will be in line with the average maximum of 77.5°F in June. The lowest temperature will be also in line with the average low of 61.7°F.
When are sunrise and sunset tomorrow?
On Tuesday, in Union, sunrise will be at 5:33 am and sunset at 8:52 pm (CDT).
How long will the day be tomorrow?
Tomorrow, the daylight will last for 15h and 19min.

Hourly weather forecast

12 am
  • 73°F
  • Feels like:
    73°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SSW
  • Pressure: 29.77"Hg
  • Humidity: 79%
  • Precip. probability: 16%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 70°F
  • Feels like:
    70°F
Cloudy
Cloudy
  • Wind: 8mph SSW
  • Pressure: 29.8"Hg
  • Humidity: 84%
  • Precip. probability: 13%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 68°F
  • Feels like:
    70°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph SW
  • Pressure: 29.77"Hg
  • Humidity: 90%
  • Precip. probability: 10%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 5:33 am
6 am
  • 66°F
  • Feels like:
    68°F
Few Showers
Few Showers
  • Wind: 5mph W
  • Pressure: 29.77"Hg
  • Humidity: 95%
  • Precip. probability: 33%
  • Precipitation: 0"
  • Visibility: 7mi
8 am
  • 72°F
  • Feels like:
    73°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph NW
  • Pressure: 29.77"Hg
  • Humidity: 87%
  • Precip. probability: 13%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 75°F
  • Feels like:
    79°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph NW
  • Pressure: 29.77"Hg
  • Humidity: 76%
  • Precip. probability: 23%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 79°F
  • Feels like:
    82°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 5mph NNE
  • Pressure: 29.77"Hg
  • Humidity: 71%
  • Precip. probability: 19%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 79°F
  • Feels like:
    82°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 7mph ENE
  • Pressure: 29.74"Hg
  • Humidity: 71%
  • Precip. probability: 46%
  • Precipitation: 0.08"
  • Visibility: 7mi
4 pm
  • 77°F
  • Feels like:
    81°F
Thunderstorms
Thunderstorms
  • Wind: 7mph W
  • Pressure: 29.74"Hg
  • Humidity: 74%
  • Precip. probability: 70%
  • Precipitation: 0.16"
  • Visibility: 6mi
6 pm
  • 73°F
  • Feels like:
    75°F
Showers
Showers
  • Wind: 7mph NW
  • Pressure: 29.74"Hg
  • Humidity: 78%
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • Visibility: 7mi
8 pm
  • 70°F
  • Feels like:
    72°F
Showers
Showers
  • Wind: 6mph N
  • Pressure: 29.71"Hg
  • Humidity: 86%
  • Precip. probability: 40%
  • Precipitation: 0.04"
  • Visibility: 7mi
Sunset: 8:52 pm
10 pm
  • 68°F
  • Feels like:
    70°F
Cloudy
Cloudy
  • Wind: 4mph ENE
  • Pressure: 29.74"Hg
  • Humidity: 92%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 9mi
Tomorrow, a combination of overcast, turbulent and rain-soaked weather is expected.
Rainfall is predicted at 5 am, and from 2 pm to 9 pm. With moderate precipitation of 0.24", most rainfall is expected at 3 pm.
The temperature will be between a minimum of 66.2°F and a maximum of 78.8°F. The warmest part of the day will be from noon to 3 pm.
The maximum temperature will be comparable to June's average highest temperature of 77.5°F. The night temperature will be also close to the standard June low of 61.7°F.
Updated: Jun 17, 2025 @ 01:52:00 UTC
Published by: Weather U.S. | About Us
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