Weather forecast for tomorrowUnion, UT

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 202°
  • Humidity: 40%
  • UV index: 4
  • Sunrise: 7:42 am MDT
  • Sunset: 6:42 pm MDT
  • ▼
Tomorrow, on Sunday, October 18, some passing clouds may drift through, but the sun will shine at times.
The maximum temperature will be an agreeable 68°F, while the minimum expected temperature is a chilly 46.4°F.
Tomorrow, the maximum temperature of 68°F will resemble September's climate more than October's.
Sunrise will be at 7:42 am and sunset at 6:42 pm; tomorrow's daylight will last for 11h and 1min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 66°C.
Coldest period: 3 am - 6 am 48°C.

Chance of precipitation

Highest chance: 12 am - 9 pm 0%.

Hourly weather forecast

  • 12 am
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 137°
  • Humidity: 44%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 48°F
  • Feels like:
    46°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 142°
  • Humidity: 48%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 48°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 141°
  • Humidity: 52%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 48°F
  • Feels like:
    46°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 133°
  • Humidity: 54%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:42 am
  • 8 am
  • 46°F
  • Feels like:
    45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSE 142°
  • Humidity: 56%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 55°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSE 150°
  • Humidity: 45%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphS 187°
  • Humidity: 38%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSW 226°
  • Humidity: 32%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 66°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphWSW 248°
  • Humidity: 30%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphWNW 284°
  • Humidity: 36%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:42 pm
  • 8 pm
  • 59°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphS 173°
  • Humidity: 44%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 55°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 142°
  • Humidity: 49%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of overcast and dry and sunny weather is anticipated.
The temperature will vary between a minimum of 46.4°F and a maximum of 66.2°F. The warmest part of the day will be from 3 pm to 5 pm.
The temperature will feel more consistent with September's average high than the expected maximum for October. Tomorrow, the forecasted low is also more in line with September's minimum of 50.9°F than the average in October.
Updated: Oct 17, 2026 @ 17:10:47 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, a partly cloudy outlook will keep the sky interesting throughout the day.

Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 46.4°F.
The highest temperature tomorrow will be notably higher than the average maximum of 57.2°F in October. Tomorrow, the lowest temperature will be moderately higher than the average low temperature.

On Sunday, in Union, sunrise will be at 7:42 am and sunset at 6:42 pm (MDT).

In Union, the length of the day tomorrow will be 11h and 1min.