Weather forecast for 10 daysSaint Regis, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 63°F
- 37°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphE 96°
- Humidity: 64%
- UV index: 3
- Sunrise: 8:03 am MDT
- Sunset: 6:47 pm MDT
- details ▼
On Sunday, October 18, thin clouds will pass through at times, but overall, it will remain bright.
The temperature is anticipated to vary between a maximum of a breezy 62.6°F and a minimum of an icy 37.4°F.
Temperatures are trending warmer, with a peak resembling September's average maximum rather than October's seasonal high.
Sunrise will be at 8:03 am and sunset at 6:47 pm; the daylight will last for 10h and 44min.
The temperature is anticipated to vary between a maximum of a breezy 62.6°F and a minimum of an icy 37.4°F.
Temperatures are trending warmer, with a peak resembling September's average maximum rather than October's seasonal high.
Sunrise will be at 8:03 am and sunset at 6:47 pm; the daylight will last for 10h and 44min.
10-day overview
Daily temperatures
Maximum temperature: 66°C.
Coldest day: Tuesday 27.10. 45°C.
Coldest day: Tuesday 27.10. 45°C.
Chance of precipitation
Highest chance: Friday 43%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 63°F
- 37°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphE 96°
- Humidity: 64%
- UV index: 3
- Sunrise: 8:03 am MDT
- Sunset: 6:47 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 43°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphESE 115°
- Humidity: 63%
- UV index: 3
- Sunrise: 8:05 am MDT
- Sunset: 6:45 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 64°F
- 41°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphE 94°
- Humidity: 65%
- UV index: 3
- Sunrise: 8:06 am MDT
- Sunset: 6:43 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 45°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphESE 121°
- Humidity: 62%
- UV index: 3
- Sunrise: 8:07 am MDT
- Sunset: 6:41 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 45°F
PM Showers
- Precip. probability: 42%
- Precipitation: 0"
- Wind: 2mphS 182°
- Humidity: 75%
- UV index: 2
- Sunrise: 8:09 am MDT
- Sunset: 6:40 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 50°F
- 34°F
AM Showers
- Precip. probability: 43%
- Precipitation: 0.24"
- Wind: 6mphWSW 253°
- Humidity: 89%
- UV index: 2
- Sunrise: 8:10 am MDT
- Sunset: 6:38 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 46°F
- 34°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0.04"
- Wind: 3mphS 187°
- Humidity: 74%
- UV index: 2
- Sunrise: 8:12 am MDT
- Sunset: 6:36 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 46°F
- 34°F
AM Showers
- Precip. probability: 32%
- Precipitation: 0.08"
- Wind: 3mphE 91°
- Humidity: 80%
- UV index: 2
- Sunrise: 8:13 am MDT
- Sunset: 6:34 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 48°F
- 34°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0.04"
- Wind: 3mphE 86°
- Humidity: 76%
- UV index: 2
- Sunrise: 8:15 am MDT
- Sunset: 6:33 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 45°F
- 34°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 4mphSSW 209°
- Humidity: 84%
- UV index: 2
- Sunrise: 8:16 am MDT
- Sunset: 6:31 pm MDT
- details ▼
For the next ten days, a combination of dull and rain-filled weather is forecasted.
Rainfall is expected on Friday, next Sunday and Monday.
Temperature differences will be noticeable across the forecast period. Highs will range from 44.6°F to 66.2°F, while nighttime temperatures are expected to vary from 33.8°F to 44.6°F.
With a maximum temperature of 66.2°F, Monday and Wednesday will be the warmest days in Saint Regis; the lowest daytime temperature of the period will be reached on next Tuesday, peaking at 44.6°F.
Rainfall is expected on Friday, next Sunday and Monday.
Temperature differences will be noticeable across the forecast period. Highs will range from 44.6°F to 66.2°F, while nighttime temperatures are expected to vary from 33.8°F to 44.6°F.
With a maximum temperature of 66.2°F, Monday and Wednesday will be the warmest days in Saint Regis; the lowest daytime temperature of the period will be reached on next Tuesday, peaking at 44.6°F.
Updated: Oct 18, 2026 @ 06:52:03 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 Saint Regis, intermittent cloud cover is expected, allowing for some sunshine.
Today, the highest temperature will be 62.6°F, while the lowest temperature will be 37.4°F.
The maximum temperature today will be significantly higher than the average highest temperature of 51.4°F in October. The lowest temperature today will be a couple of degrees higher than the average low temperature.
The maximum temperature today will be significantly higher than the average highest temperature of 51.4°F in October. The lowest temperature today will be a couple of degrees higher than the average low temperature.
On Sunday, in Saint Regis, sunrise will be at 8:03 am and sunset at 6:47 pm (MDT).
Today, the daylight will last for 10h and 44min.
