Weather forecast for 10 daysIsmay, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 39°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphNNE 13°
- Humidity: 41%
- UV index: 3
- Sunrise: 7:21 am MDT
- Sunset: 6:07 pm MDT
- details ▼
Today, high-altitude clouds may scatter across the sky, but the sun will still shine.
Temperatures will oscillate between a comfortable 64.4°F at their highest and a wintry 39.2°F at their lowest.
The anticipated high is warmer and better reflects September's normal temperature profile than that of October.
Sunrise will be at 7:21 am and sunset at 6:07 pm; the daylight will last for 10h and 46min.
Temperatures will oscillate between a comfortable 64.4°F at their highest and a wintry 39.2°F at their lowest.
The anticipated high is warmer and better reflects September's normal temperature profile than that of October.
Sunrise will be at 7:21 am and sunset at 6:07 pm; the daylight will last for 10h and 46min.
10-day overview
Daily temperatures
Warmest day: Thursday 75°C.
Coldest day: Saturday 50°C.
Coldest day: Saturday 50°C.
Chance of precipitation
Highest chance: 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 64°F
- 39°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphNNE 13°
- Humidity: 41%
- UV index: 3
- Sunrise: 7:21 am MDT
- Sunset: 6:07 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 70°F
- 41°F
Sunny / Wind
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 21mphSE 146°
- Humidity: 37%
- UV index: 3
- Sunrise: 7:22 am MDT
- Sunset: 6:05 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 36°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 7mphW 268°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:24 am MDT
- Sunset: 6:03 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 46°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 11mphSE 125°
- Humidity: 59%
- UV index: 3
- Sunrise: 7:25 am MDT
- Sunset: 6:02 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 75°F
- 54°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphS 172°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:26 am MDT
- Sunset: 6:00 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 72°F
- 41°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 16mphSW 215°
- Humidity: 54%
- UV index: 2
- Sunrise: 7:28 am MDT
- Sunset: 5:58 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 50°F
- 34°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0.12"
- Wind: 17mphWNW 296°
- Humidity: 59%
- UV index: 3
- Sunrise: 7:29 am MDT
- Sunset: 5:56 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 55°F
- 36°F
Partly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 12mphESE 115°
- Humidity: 59%
- UV index: 2
- Sunrise: 7:31 am MDT
- Sunset: 5:55 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 54°F
- 36°F
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 12mphESE 123°
- Humidity: 60%
- UV index: 2
- Sunrise: 7:32 am MDT
- Sunset: 5:53 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 52°F
- 34°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 12mphSSW 213°
- Humidity: 66%
- UV index: 2
- Sunrise: 7:34 am MDT
- Sunset: 5:52 pm MDT
- details ▼
Throughout the next ten days, a combination of cloud-filled and bright weather is forecasted.
With a probability of 24%, rainfall is forecasted only for Saturday. Anticipated precipitation will be minimal at 0.12".
Temperature variation will be noticeable in the next ten days. Forecast highs will fluctuate between 50°F and 75.2°F, while the lowest night temperatures will vary also significantly, as the lowest temperatures will be recorded between 33.8°F and 53.6°F.
Expect the warmest day on Thursday, with temperatures peaking at 75.2°F; Saturday will be the coldest day, with the highest temperature of 50°F.
With a probability of 24%, rainfall is forecasted only for Saturday. Anticipated precipitation will be minimal at 0.12".
Temperature variation will be noticeable in the next ten days. Forecast highs will fluctuate between 50°F and 75.2°F, while the lowest night temperatures will vary also significantly, as the lowest temperatures will be recorded between 33.8°F and 53.6°F.
Expect the warmest day on Thursday, with temperatures peaking at 75.2°F; Saturday will be the coldest day, with the highest temperature of 50°F.
Updated: Oct 18, 2026 @ 06:09:08 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in Ismay, a partly cloudy sky is anticipated.
Today, the highest temperature will be 64.4°F, while the lowest temperature will be 39.2°F.
The highest temperature will be notably 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.
The highest temperature will be notably 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, the length of the day today will be 10h and 46min.
