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: 10mphSW 223°
  • Humidity: 28%
  • UV index: 4
  • Sunrise: 7:41 am MDT
  • Sunset: 6:37 pm MDT
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Today, in Alta, sunny and dry conditions are anticipated.
A wide temperature range is expected, from a high of a breezy 64.4°F to a low of an icy 32°F.
Today, temperatures will feel warmer with a high of 64.4°F, more typical for September than for October.
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 215°
  • Humidity: 38%
  • UV index: 4
  • Sunrise: 7:42 am MDT
  • Sunset: 6:35 pm MDT
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Tomorrow, on Sunday, a partly cloudy outlook will keep the sky interesting throughout the day.
Significant temperature variations are expected, soaring to a maximum of a breezy 62.6°F and descending to a minimum of a cold 33.8°F.
A forecast high of 62.6°F brings conditions more familiar to September's average than October's.
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 period: Friday - Saturday 46°C.

Chance of precipitation

Highest chance: Friday 76%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 64°F
  • 32°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 10mphSW 223°
  • Humidity: 28%
  • UV index: 4
  • 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 215°
  • Humidity: 38%
  • UV index: 4
  • Sunrise: 7:42 am MDT
  • Sunset: 6:35 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 63°F
  • 37°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
  • 37°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphSSW 196°
  • Humidity: 61%
  • 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: 19%
  • Precipitation: 0"
  • Wind: 7mphS 178°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:46 am MDT
  • Sunset: 6:31 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 61°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.24"
  • Wind: 7mphSSE 161°
  • Humidity: 66%
  • 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: 76%
  • Precipitation: 0.63"
  • Wind: 9mphSSW 213°
  • Humidity: 87%
  • UV index: 1
  • Sunrise: 7:48 am MDT
  • Sunset: 6:27 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 46°F
  • 32°F
AM Snow Showers
AM Snow Showers
  • Precip. probability: 32%
  • Precipitation: 0.04"
  • Wind: 7mphSW 220°
  • Humidity: 69%
  • UV index: 2
  • Sunrise: 7:50 am MDT
  • Sunset: 6:26 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 52°F
  • 32°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • Wind: 7mphS 175°
  • Humidity: 63%
  • UV index: 2
  • Sunrise: 7:51 am MDT
  • Sunset: 6:24 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 52°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphS 182°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:52 am MDT
  • Sunset: 6:23 pm MDT
  • ▼
Weather fluctuations are likely over the next ten days, and a mix of cloudy, dry and sunny, rain-filled and snowy weather is anticipated.
Rainfall is forecasted for Thursday, Friday and next Sunday.
With a probability of 32%, snowfall is expected only on next Saturday. The precipitation will be heavy at 0.63".
Significant changes in temperature are expected in the upcoming period. The maximum temperature will vary between 46.4°F and 64.4°F, while nighttime temperatures are expected to vary from 28.4°F to 39.2°F.
Today is the warmest day, with a maximum temperature of 64.4°F; Friday and next Saturday, with the highest temperature of 46.4°F, will be the coldest days in Alta.
Updated: Oct 17, 2026 @ 18:02:28 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Alta, expect bright skies and plenty of sunshine.

Today, the maximum temperature in Alta will be 64.4°F, while the minimum temperature will be 32°F.
Today, the maximum temperature will be noticeably higher than the average highest temperature 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.

Tomorrow, the sky will feature a blend of clouds and sunshine.

Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 33.8°F.
The highest temperature tomorrow will be uncommonly higher than the average maximum of 46.9°F in October. The lowest temperature will be a few degrees higher than the average low of 29.1°F.

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.