Weather forecast for tomorrowUnion, IA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 41°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 17mphSSW 194°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:28 am CDT
- Sunset: 6:25 pm CDT
- details ▼
Tomorrow, sunny skies and pleasant visibility are also expected.
The maximum forecasted temperature is a breezy 66.2°F, while the minimum temperature will be a cold 41°F.
Temperatures are higher than average, more in line with September's norm of 73.8°F than with October's 58.5°F.
Sunrise will be at 7:28 am and sunset at 6:25 pm; tomorrow's daylight will last for 10h and 57min.
The maximum forecasted temperature is a breezy 66.2°F, while the minimum temperature will be a cold 41°F.
Temperatures are higher than average, more in line with September's norm of 73.8°F than with October's 58.5°F.
Sunrise will be at 7:28 am and sunset at 6:25 pm; tomorrow's daylight will last for 10h and 57min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 41°C.
Coldest hour: 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 5%.
Hourly weather forecast
- 12 am
- 45°F
- Feels like:39°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 12mphSSW 196°
- Humidity: 70%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphSSW 198°
- Humidity: 75%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphSSW 201°
- Humidity: 81%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:34°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 11mphSSW 195°
- Humidity: 84%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:28 am
- 8 am
- 43°F
- Feels like:36°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 12mphSSW 193°
- Humidity: 80%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:46°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 16mphSSW 197°
- Humidity: 63%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 61°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 17mphSSW 195°
- Humidity: 47%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 64°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 17mphSSW 193°
- Humidity: 40%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 17mphSSW 192°
- Humidity: 37%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphS 187°
- Humidity: 42%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:25 pm
- 8 pm
- 54°F
- Feels like:52°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 9mphS 180°
- Humidity: 60%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:46°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphS 189°
- Humidity: 71%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, bright skies and dry conditions are anticipated.
The temperature will be between a minimum of 41°F and a maximum of 66.2°F. The feels-like temperature will vary between the lowest temperature of 33.8°F and the highest temperature of 66.2°F. The warmest part of the day will be around 3 pm.
The highest temperature tomorrow will resemble September's average maximum of 73.8°F more than October's average. Tomorrow, the temperature will drop to a level alike with October's average minimum of 43.7°F.
The temperature will be between a minimum of 41°F and a maximum of 66.2°F. The feels-like temperature will vary between the lowest temperature of 33.8°F and the highest temperature of 66.2°F. The warmest part of the day will be around 3 pm.
The highest temperature tomorrow will resemble September's average maximum of 73.8°F more than October's average. Tomorrow, the temperature will drop to a level alike with October's average minimum of 43.7°F.
Updated: Oct 17, 2026 @ 16:43:41 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, sun-filled conditions are expected to persist.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 41°F.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in Union, sunrise will be at 7:28 am and sunset at 6:25 pm (CDT).
In Union, the length of the day tomorrow will be 10h and 57min.
