Weather forecast for 10 daysIsmay, MT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 75°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSW 232°
  • Humidity: 28%
  • UV index: 3
  • Sunrise: 7:19 am MDT
  • Sunset: 6:09 pm MDT
  • ▼
On Saturday, October 17, mostly sunny and dry conditions will continue.
Daytime will experience a high of a moderately hot 75.2°F, significantly differing from the forecasted night low of a wintry 41°F.
It will feel warmer than usual, as the temperature reflects September's normal high of 72.1°F, not October's.
Sunrise was at 7:19 am and sunset will be at 6:09 pm; the daylight will last for 10h and 49min.

Sunday Oct 18, 2026

  • 64°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphN 1°
  • Humidity: 42%
  • UV index: 3
  • Sunrise: 7:21 am MDT
  • Sunset: 6:07 pm MDT
  • ▼
Tomorrow, in Ismay, a partly cloudy outlook will keep the sky interesting throughout the day.
Temperatures are forecasted to peak at a comfortable 64.4°F and drop to a minimum of a wintry 41°F.
A forecast high of 64.4°F brings conditions more familiar to September's average than October's.
Sunrise will be at 7:21 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 46min.

10-day overview

Daily temperatures

Maximum temperature: 75°C.
Minimum temperature: 54°C.

Chance of precipitation

Highest chance: Saturday 24.10. 39%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 75°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSW 232°
  • Humidity: 28%
  • UV index: 3
  • Sunrise: 7:19 am MDT
  • Sunset: 6:09 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphN 1°
  • Humidity: 42%
  • UV index: 3
  • Sunrise: 7:21 am MDT
  • Sunset: 6:07 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 41°F
Sunny / Wind
Sunny / Wind
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 21mphSE 146°
  • Humidity: 38%
  • UV index: 3
  • Sunrise: 7:22 am MDT
  • Sunset: 6:05 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphWSW 253°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:24 am MDT
  • Sunset: 6:03 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 68°F
  • 46°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 9mphE 101°
  • Humidity: 57%
  • UV index: 3
  • Sunrise: 7:25 am MDT
  • Sunset: 6:02 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 179°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:26 am MDT
  • Sunset: 6:00 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.31"
  • Wind: 14mphSSW 195°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:28 am MDT
  • Sunset: 5:58 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 54°F
  • 36°F
AM Showers
AM Showers
  • Precip. probability: 39%
  • Precipitation: 0.08"
  • Wind: 18mphWNW 301°
  • Humidity: 55%
  • UV index: 2
  • Sunrise: 7:29 am MDT
  • Sunset: 5:56 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 55°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 12mphSE 142°
  • Humidity: 58%
  • UV index: 2
  • Sunrise: 7:31 am MDT
  • Sunset: 5:55 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 54°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 12mphSSW 206°
  • Humidity: 61%
  • UV index: 2
  • Sunrise: 7:32 am MDT
  • Sunset: 5:53 pm MDT
  • ▼
Over the course of the next ten days, expect shifting weather, and a mix of bright, dull, low-visibility and wet weather is predicted.
Rainfall is predicted for Friday and next Saturday.
There will be a considerable variation in temperature in the coming days. Forecast highs will fluctuate between 53.6°F and 75.2°F, while the lowest nightly temperature differences will be also quite pronounced, as the overnight lows will vary from 35.6°F to 53.6°F.
With a maximum temperature of 75.2°F, Saturday, Thursday and Friday will be the warmest days in Ismay; next Saturday and Monday, with the highest temperature of 53.6°F, will be the coldest days in Ismay.
Updated: Oct 17, 2026 @ 15:25:28 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, in Ismay, mostly clear skies and sunshine will create ideal daytime conditions.

Today, the maximum temperature in Ismay will be 75.2°F, while the minimum temperature will be 41°F.
Today, the highest temperature will be significantly higher than the average maximum of 54.3°F in October. The lowest temperature today will be in line with the average low temperature.

On Saturday, in Ismay, sunrise was at 7:19 am and sunset will be at 6:09 pm (MDT).

In Ismay, today, there will be 10h and 49min of daylight.

Tomorrow, a mix of clouds and blue sky is expected.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 41°F.
The highest temperature will be uncommonly higher than the average maximum of 54.3°F in October. The lowest temperature will be in line with the average low of 39.4°F.

On Sunday, in Ismay, sunrise will be at 7:21 am and sunset at 6:07 pm (MDT).

In Ismay, tomorrow, there will be 10h and 46min of daylight.