Weather forecast for 10 daysArlee, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 63°F
- 39°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphNNE 13°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:59 am MDT
- Sunset: 6:43 pm MDT
- details ▼
On Sunday, October 18, partly cloudy skies will persist, making for a mix of sun and clouds.
The temperature variation is anticipated to range from a maximum of a breezy 62.6°F to a minimum of an icy 39.2°F.
Tomorrow, the forecasted high of 62.6°F is more in line with September's average of 67.8°F than October's 49.8°F.
Sunrise will be at 7:59 am and sunset at 6:43 pm; tomorrow's daylight will last for 10h and 44min.
The temperature variation is anticipated to range from a maximum of a breezy 62.6°F to a minimum of an icy 39.2°F.
Tomorrow, the forecasted high of 62.6°F is more in line with September's average of 67.8°F than October's 49.8°F.
Sunrise will be at 7:59 am and sunset at 6:43 pm; tomorrow's daylight will last for 10h and 44min.
10-day overview
Daily temperatures
Maximum temperature: 66°C.
Coldest period: Friday - Saturday 46°C.
Coldest period: Friday - Saturday 46°C.
Chance of precipitation
Highest chance: Friday 54%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 39°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphSSE 154°
- Humidity: 75%
- UV index: 0
- Sunrise: 7:57 am MDT
- Sunset: 6:45 pm MDT
- details ▼
- Sunday
- Oct 18, 2026
- 63°F
- 39°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphNNE 13°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:59 am MDT
- Sunset: 6:43 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 37°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphSSE 150°
- Humidity: 58%
- UV index: 3
- Sunrise: 8:00 am MDT
- Sunset: 6:41 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 64°F
- 39°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphN 10°
- Humidity: 61%
- UV index: 2
- Sunrise: 8:02 am MDT
- Sunset: 6:39 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 41°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphS 190°
- Humidity: 58%
- UV index: 3
- Sunrise: 8:03 am MDT
- Sunset: 6:38 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 64°F
- 43°F
PM Showers
- Precip. probability: 43%
- Precipitation: 0.24"
- Wind: 4mphSSW 202°
- Humidity: 68%
- UV index: 2
- Sunrise: 8:05 am MDT
- Sunset: 6:36 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 46°F
- 32°F
Showers
- Precip. probability: 54%
- Precipitation: 0.12"
- Wind: 7mphW 273°
- Humidity: 90%
- UV index: 2
- Sunrise: 8:06 am MDT
- Sunset: 6:34 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 46°F
- 30°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0.08"
- Wind: 5mphSW 214°
- Humidity: 74%
- UV index: 2
- Sunrise: 8:08 am MDT
- Sunset: 6:32 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 48°F
- 30°F
AM Snow Showers
- Precip. probability: 35%
- Precipitation: 0.04"
- Wind: 5mphE 79°
- Humidity: 77%
- UV index: 2
- Sunrise: 8:09 am MDT
- Sunset: 6:31 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 50°F
- 30°F
Mostly Sunny
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 4mphWNW 303°
- Humidity: 74%
- UV index: 2
- Sunrise: 8:11 am MDT
- Sunset: 6:29 pm MDT
- details ▼
The next ten days will bring unstable conditions, and a mix of cloud-filled, wet, snowy and cold and sunny weather is expected.
Rain is forecasted for Thursday and Friday.
With a 35% probability, snowfall is predicted only for next Sunday. The precipitation will be moderate at 0.24".
Substantial differences in temperature are forecasted throughout the forecast window. Highs will range from 46.4°F to 66.2°F, while there will be also a marked difference in overnight low temperatures, as temperatures overnight will fluctuate from 30.2°F up to 42.8°F.
With a maximum temperature of 66.2°F, Monday and Wednesday will be the warmest days; with a maximum temperature of 46.4°F, Friday and next Saturday will be the coldest days.
Rain is forecasted for Thursday and Friday.
With a 35% probability, snowfall is predicted only for next Sunday. The precipitation will be moderate at 0.24".
Substantial differences in temperature are forecasted throughout the forecast window. Highs will range from 46.4°F to 66.2°F, while there will be also a marked difference in overnight low temperatures, as temperatures overnight will fluctuate from 30.2°F up to 42.8°F.
With a maximum temperature of 66.2°F, Monday and Wednesday will be the warmest days; with a maximum temperature of 46.4°F, Friday and next Saturday will be the coldest days.
Updated: Oct 18, 2026 @ 05:41:24 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
Tomorrow, sunlight and clouds will take turns dominating the sky.
Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 39.2°F.
Tomorrow, the maximum temperature will be noticeably higher than the average highest temperature of 49.8°F in October. The lowest temperature will be a few degrees higher than the average low of 30.9°F.
Tomorrow, the maximum temperature will be noticeably higher than the average highest temperature of 49.8°F in October. The lowest temperature will be a few degrees higher than the average low of 30.9°F.
On Sunday, in Arlee, sunrise will be at 7:59 am and sunset at 6:43 pm (MDT).
In Arlee, the length of the day tomorrow will be 10h and 44min.
