Weather forecast for 10 daysAlta, WY

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 64°F
  • 32°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphSW 221°
  • Humidity: 26%
  • UV index: 3
  • Sunrise: 7:41 am MDT
  • Sunset: 6:37 pm MDT
  • ▼
Today, on Saturday, October 17, sunshine will likely continue with scattered clouds at most.
A considerable disparity in temperature is predicted, reaching up to a maximum of a comfortable 64.4°F and falling to a minimum of an icy 32°F.
Meteorological data shows 64.4°F is more characteristic of September's climate profile than October's.
Sunrise was at 7:41 am and sunset will be at 6:37 pm; the daylight will last for 10h and 56min.

Sunday Oct 18, 2026

  • 63°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSW 219°
  • Humidity: 38%
  • UV index: 4
  • Sunrise: 7:42 am MDT
  • Sunset: 6:35 pm MDT
  • ▼
Tomorrow, in Alta, partly cloudy skies will persist, making for a mix of sun and clouds.
Daytime will experience a high of a breezy 62.6°F, significantly differing from the forecasted night low of an icy 33.8°F.
Tomorrow, expect a warmer trend, with a high of 62.6°F more common in September.
Sunrise will be at 7:42 am and sunset at 6:35 pm; tomorrow's daylight will last for 10h and 53min.

10-day overview

Daily temperatures

Warmest day: today 64°C.
Coldest day: Saturday 24.10. 43°C.

Chance of precipitation

Highest chance: Friday 77%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 64°F
  • 32°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphSW 221°
  • Humidity: 26%
  • UV index: 3
  • Sunrise: 7:41 am MDT
  • Sunset: 6:37 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 63°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSW 219°
  • Humidity: 38%
  • UV index: 4
  • Sunrise: 7:42 am MDT
  • Sunset: 6:35 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 63°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphS 188°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:43 am MDT
  • Sunset: 6:34 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 61°F
  • 39°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 5mphSSW 209°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:45 am MDT
  • Sunset: 6:32 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 61°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 7mphS 175°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:46 am MDT
  • Sunset: 6:31 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 59°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0.12"
  • Wind: 7mphSSE 167°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:47 am MDT
  • Sunset: 6:29 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 46°F
  • 28°F
Rain
Rain
  • Precip. probability: 77%
  • Precipitation: 0.63"
  • Wind: 8mphSSW 208°
  • Humidity: 91%
  • UV index: 1
  • Sunrise: 7:48 am MDT
  • Sunset: 6:27 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 43°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 7mphSW 227°
  • Humidity: 75%
  • UV index: 3
  • Sunrise: 7:50 am MDT
  • Sunset: 6:26 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 52°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 7mphS 185°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:51 am MDT
  • Sunset: 6:24 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 52°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphSSW 196°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 7:52 am MDT
  • Sunset: 6:23 pm MDT
  • ▼
Models point to a combination of primarily overcast and occasionally mostly clear and rainy weather is forecasted.
Rainfall is expected on Thursday and Friday.
Expect a substantial fluctuation in daytime highs throughout the forecast window. The maximum temperature will vary between 42.8°F and 64.4°F, while the low temperature range extends from 28.4°F to 39.2°F.
Today is the warmest day, with a maximum temperature of 64.4°F; with the highest temperature of 42.8°F, next Saturday will be the coldest day.
Updated: Oct 17, 2026 @ 20:22:23 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, the forecast calls for abundant sunshine.

Today, the highest temperature will be 64.4°F, while the lowest temperature will be 32°F.
Today, the highest temperature will be noticeably higher than the average maximum of 46.9°F in October. The lowest temperature today will be in line with the average low temperature.

On Saturday, in Alta, sunrise was at 7:41 am and sunset will be at 6:37 pm (MDT).

In Alta, today, there will be 10h and 56min of daylight.

On Sunday, scattered clouds may briefly filter the sunlight, but it will remain bright overall.

Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 33.8°F.
Tomorrow, the highest temperature will be notably higher than the average maximum of 46.9°F in October. Tomorrow, the lowest temperature will be a few degrees higher than the average low temperature.

On Sunday, in Alta, sunrise will be at 7:42 am and sunset at 6:35 pm (MDT).

In Alta, tomorrow, there will be 10h and 53min of daylight.