Weather forecast for 10 daysUlm, MT

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 63°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 10mphENE 73°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:49 am MDT
  • Sunset: 6:32 pm MDT
  • ▼
Tomorrow, variable cloud cover will persist, but sunshine will break through.
The highest expected temperature is a breezy 62.6°F, while the lowest temperature will be a cold 37.4°F.
Tomorrow, the forecasted high of 62.6°F is more in line with September's average of 70.5°F than October's 54.5°F.
Sunrise will be at 7:49 am and sunset at 6:32 pm; tomorrow's daylight will last for 10h and 43min.

10-day overview

Daily temperatures

Warmest day: today 73°C.
Coldest period: Sunday - Monday 41°C.

Chance of precipitation

Highest chance: Friday 44%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 41°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 27mphSW 226°
  • Humidity: 42%
  • UV index: 0
  • Sunrise: 7:48 am MDT
  • Sunset: 6:34 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 63°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 10mphENE 73°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:49 am MDT
  • Sunset: 6:32 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphSSW 200°
  • Humidity: 50%
  • UV index: 3
  • Sunrise: 7:50 am MDT
  • Sunset: 6:30 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 61°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphWNW 298°
  • Humidity: 60%
  • UV index: 2
  • Sunrise: 7:52 am MDT
  • Sunset: 6:29 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 9mphSSW 210°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:53 am MDT
  • Sunset: 6:27 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0.04"
  • Wind: 9mphSW 217°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:55 am MDT
  • Sunset: 6:25 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 52°F
  • 36°F
Showers
Showers
  • Precip. probability: 44%
  • Precipitation: 0.2"
  • Wind: 12mphW 267°
  • Humidity: 74%
  • UV index: 2
  • Sunrise: 7:56 am MDT
  • Sunset: 6:23 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 46°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 9mphSW 228°
  • Humidity: 59%
  • UV index: 2
  • Sunrise: 7:58 am MDT
  • Sunset: 6:22 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 41°F
  • 32°F
AM Rain / Snow Showers
AM Rain / Snow Showers
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Wind: 10mphNW 322°
  • Humidity: 68%
  • UV index: 2
  • Sunrise: 7:59 am MDT
  • Sunset: 6:20 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 41°F
  • 34°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 9mphSW 228°
  • Humidity: 68%
  • UV index: 2
  • Sunrise: 8:01 am MDT
  • Sunset: 6:18 pm MDT
  • ▼
Weather fluctuations are likely over the next ten days, and a mix of gloomy, bright, damp and snowy weather is predicted.
With a 44% probability, rainfall is anticipated only on Friday. Expected precipitation will be light at 0.2".
With a 31% probability, snowfall is expected only on next Sunday. The precipitation will be moderate at 0.2".
There will be a considerable variation in temperature across the forecast period. The temperature is expected to swing from 41°F up to 69.8°F, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 32°F up to 46.4°F.
Monday, Wednesday and Thursday, with the highest temperature of 69.8°F, will be the warmest days in Ulm; next Sunday and Monday, with the highest temperature of 41°F, will be the coldest days in Ulm.
Updated: Oct 17, 2026 @ 22:15:00 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, clouds and sunshine will alternate throughout the day.

Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 37.4°F.
Tomorrow, the maximum temperature will be slightly warmer than the average highest temperature in October. Tomorrow, the lowest temperature will be in line with the average low temperature.

On Sunday, in Ulm, sunrise will be at 7:49 am and sunset at 6:32 pm (MDT).

In Ulm, the length of the day tomorrow will be 10h and 43min.