Weather forecast for 10 daysGrass Range, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 59°F
- 39°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphE 99°
- Humidity: 45%
- UV index: 3
- Sunrise: 7:38 am MDT
- Sunset: 6:22 pm MDT
- details ▼
On Sunday, October 18, high-altitude clouds may scatter across the sky, but the sun will still shine.
Temperature span will be from a high of a mild 59°F to a low of a wintry 39.2°F.
Tomorrow, the forecasted peak temperature is set to be relatively higher than the typical October temperature of 52.2°F.
Sunrise will be at 7:38 am and sunset at 6:22 pm; tomorrow's daylight will last for 10h and 44min.
Temperature span will be from a high of a mild 59°F to a low of a wintry 39.2°F.
Tomorrow, the forecasted peak temperature is set to be relatively higher than the typical October temperature of 52.2°F.
Sunrise will be at 7:38 am and sunset at 6:22 pm; tomorrow's daylight will last for 10h and 44min.
10-day overview
Daily temperatures
Maximum temperature: 73°C.
Coldest day: Monday 26.10. 46°C.
Coldest day: Monday 26.10. 46°C.
Chance of precipitation
Highest chance: Friday 37%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 43°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 13mphW 269°
- Humidity: 36%
- UV index: 0
- Sunrise: 7:36 am MDT
- Sunset: 6:24 pm MDT
- details ▼
- Sunday
- Oct 18, 2026
- 59°F
- 39°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphE 99°
- Humidity: 45%
- UV index: 3
- Sunrise: 7:38 am MDT
- Sunset: 6:22 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 72°F
- 45°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 194°
- Humidity: 44%
- UV index: 3
- Sunrise: 7:39 am MDT
- Sunset: 6:20 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 64°F
- 39°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphNW 316°
- Humidity: 47%
- UV index: 2
- Sunrise: 7:40 am MDT
- Sunset: 6:18 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 48°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 14mphS 182°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:42 am MDT
- Sunset: 6:17 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 73°F
- 48°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 206°
- Humidity: 46%
- UV index: 3
- Sunrise: 7:43 am MDT
- Sunset: 6:15 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 59°F
- 37°F
PM Showers
- Precip. probability: 37%
- Precipitation: 0.08"
- Wind: 16mphWNW 291°
- Humidity: 65%
- UV index: 1
- Sunrise: 7:45 am MDT
- Sunset: 6:13 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 48°F
- 32°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 16mphWNW 294°
- Humidity: 60%
- UV index: 2
- Sunrise: 7:46 am MDT
- Sunset: 6:12 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 48°F
- 32°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 12mphSW 219°
- Humidity: 69%
- UV index: 2
- Sunrise: 7:48 am MDT
- Sunset: 6:10 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 46°F
- 34°F
Mostly Sunny
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 9mphNNW 344°
- Humidity: 63%
- UV index: 2
- Sunrise: 7:49 am MDT
- Sunset: 6:08 pm MDT
- details ▼
Over the next ten days, a mix of overcast, dry and sunny and showery weather is expected.
With a probability of 37%, rainfall is forecasted only for Friday. Anticipated precipitation will be minimal at 0.08".
Substantial differences in temperature are forecasted in the next ten days. The temperature is expected to swing from 46.4°F up to 73.4°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 32°F and 48.2°F.
Thursday will be the warmest day, with a maximum temperature of 73.4°F; next Monday will be the coldest day, with the highest temperature of 46.4°F.
With a probability of 37%, rainfall is forecasted only for Friday. Anticipated precipitation will be minimal at 0.08".
Substantial differences in temperature are forecasted in the next ten days. The temperature is expected to swing from 46.4°F up to 73.4°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 32°F and 48.2°F.
Thursday will be the warmest day, with a maximum temperature of 73.4°F; next Monday will be the coldest day, with the highest temperature of 46.4°F.
Updated: Oct 17, 2026 @ 21:34:43 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, moderate cloud cover will mix with sunshine throughout the day.
Tomorrow, the maximum temperature will be 59°F, while the minimum temperature will be 39.2°F.
Tomorrow, the maximum temperature will be relatively higher than the average highest temperature in October. The lowest temperature tomorrow will be also a couple of degrees higher than the average low temperature.
Tomorrow, the maximum temperature will be relatively higher than the average highest temperature in October. The lowest temperature tomorrow will be also a couple of degrees higher than the average low temperature.
On Sunday, in Grass Range, sunrise will be at 7:38 am and sunset at 6:22 pm (MDT).
In Grass Range, tomorrow, there will be 10h and 44min of daylight.
