Weather forecast for 10 daysThree Forks, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 28°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphN 358°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:47 am MDT
- Sunset: 6:35 pm MDT
- details ▼
Today, a bright and mostly cloud-free sky is in store.
Temperatures are set to span a considerable range, with a high of a breezy 66.2°F and a low of a freezing 28.4°F.
Today, weather will feel warmer as the high trends toward September's average of 70.9°F.
Sunrise was at 7:47 am and sunset will be at 6:35 pm; the daylight will last for 10h and 47min.
Temperatures are set to span a considerable range, with a high of a breezy 66.2°F and a low of a freezing 28.4°F.
Today, weather will feel warmer as the high trends toward September's average of 70.9°F.
Sunrise was at 7:47 am and sunset will be at 6:35 pm; the daylight will last for 10h and 47min.
10-day overview
Daily temperatures
Warmest day: tomorrow 70°C.
Coldest day: Tuesday 27.10. 45°C.
Coldest day: Tuesday 27.10. 45°C.
Chance of precipitation
Highest chance: Friday 82%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 66°F
- 28°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphN 358°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:47 am MDT
- Sunset: 6:35 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 70°F
- 34°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 3mphSSE 157°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:48 am MDT
- Sunset: 6:33 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 66°F
- 32°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 4mphNNW 335°
- Humidity: 54%
- UV index: 3
- Sunrise: 7:50 am MDT
- Sunset: 6:31 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 36°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphSW 216°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:51 am MDT
- Sunset: 6:29 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 66°F
- 43°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0.16"
- Wind: 5mphSW 225°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:52 am MDT
- Sunset: 6:28 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 50°F
- 27°F
Rain
- Precip. probability: 82%
- Precipitation: 0.24"
- Wind: 9mphWNW 294°
- Humidity: 85%
- UV index: 2
- Sunrise: 7:54 am MDT
- Sunset: 6:26 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 50°F
- 28°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 5mphSW 227°
- Humidity: 69%
- UV index: 3
- Sunrise: 7:55 am MDT
- Sunset: 6:24 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 55°F
- 28°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 6mphNW 304°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:57 am MDT
- Sunset: 6:23 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 50°F
- 27°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 6mphNNW 344°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:58 am MDT
- Sunset: 6:21 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 45°F
- 27°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 6mphW 281°
- Humidity: 77%
- UV index: 2
- Sunrise: 7:59 am MDT
- Sunset: 6:20 pm MDT
- details ▼
Looking ahead, conditions suggest a period of cloudy, sunny and wet weather is predicted.
With a probability of 82%, rainfall is predicted only for Friday. Forecasted precipitation will be light at 0.24".
Temperature fluctuation will be noticeable in the upcoming period. The temperature is expected to swing from 44.6°F up to 69.8°F, while the variation in nighttime lows will be also notably wide, as temperatures overnight will fluctuate from 26.6°F up to 42.8°F.
Expect the warmest day on Monday, with temperatures peaking at 69.8°F; the coldest day will be next Tuesday, with a maximum of 44.6°F.
With a probability of 82%, rainfall is predicted only for Friday. Forecasted precipitation will be light at 0.24".
Temperature fluctuation will be noticeable in the upcoming period. The temperature is expected to swing from 44.6°F up to 69.8°F, while the variation in nighttime lows will be also notably wide, as temperatures overnight will fluctuate from 26.6°F up to 42.8°F.
Expect the warmest day on Monday, with temperatures peaking at 69.8°F; the coldest day will be next Tuesday, with a maximum of 44.6°F.
Updated: Oct 18, 2026 @ 15:09:46 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 Three Forks, a glowing sky and minimal clouds are expected.
Today, the maximum temperature in Three Forks, Montana, will be 66.2°F, while the minimum temperature will be 28.4°F.
The maximum temperature today will be noticeably higher than the average highest temperature of 53.8°F in October. The lowest temperature will be a couple of degrees lower than the average low of 33.4°F.
The maximum temperature today will be noticeably higher than the average highest temperature of 53.8°F in October. The lowest temperature will be a couple of degrees lower than the average low of 33.4°F.
On Sunday, in Three Forks, sunrise was at 7:47 am and sunset will be at 6:35 pm (MDT).
Today, the daylight will last for 10h and 47min.
