Weather forecast for 10 daysCorvallis, MT
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 34°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphN 356°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:58 am MDT
- Sunset: 6:44 pm MDT
- details ▼
Tomorrow, sunlight and clouds will take turns dominating the sky.
A significant variation in temperature is forecasted, ranging from a high of a comfortable 64.4°F to a low of a wintry 33.8°F.
Expect temperatures to match September's average maximum of 66.2°F rather than October's 50°F.
Sunrise will be at 7:58 am and sunset at 6:44 pm; tomorrow's daylight will last for 10h and 46min.
A significant variation in temperature is forecasted, ranging from a high of a comfortable 64.4°F to a low of a wintry 33.8°F.
Expect temperatures to match September's average maximum of 66.2°F rather than October's 50°F.
Sunrise will be at 7:58 am and sunset at 6:44 pm; tomorrow's daylight will last for 10h and 46min.
10-day overview
Daily temperatures
Warmest day: Monday 68°C.
Coldest day: Friday 46°C.
Coldest day: Friday 46°C.
Chance of precipitation
Highest chance: Friday 67%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 36°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphWSW 238°
- Humidity: 72%
- UV index: 0
- Sunrise: 7:56 am MDT
- Sunset: 6:46 pm MDT
- details ▼
- Sunday
- Oct 18, 2026
- 64°F
- 34°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphN 356°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:58 am MDT
- Sunset: 6:44 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 36°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphS 185°
- Humidity: 58%
- UV index: 3
- Sunrise: 7:59 am MDT
- Sunset: 6:43 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 66°F
- 39°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphNNW 337°
- Humidity: 61%
- UV index: 3
- Sunrise: 8:01 am MDT
- Sunset: 6:41 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 39°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphSSW 211°
- Humidity: 64%
- UV index: 3
- Sunrise: 8:02 am MDT
- Sunset: 6:39 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 64°F
- 41°F
PM Showers
- Precip. probability: 55%
- Precipitation: 0.28"
- Wind: 4mphSW 235°
- Humidity: 75%
- UV index: 2
- Sunrise: 8:03 am MDT
- Sunset: 6:37 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 46°F
- 28°F
Rain
- Precip. probability: 67%
- Precipitation: 0.16"
- Wind: 6mphWNW 294°
- Humidity: 92%
- UV index: 2
- Sunrise: 8:05 am MDT
- Sunset: 6:36 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 48°F
- 28°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphSW 231°
- Humidity: 74%
- UV index: 3
- Sunrise: 8:06 am MDT
- Sunset: 6:34 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 50°F
- 30°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 4mphN 358°
- Humidity: 79%
- UV index: 2
- Sunrise: 8:08 am MDT
- Sunset: 6:32 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 50°F
- 30°F
Mostly Sunny
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 4mphWNW 282°
- Humidity: 74%
- UV index: 2
- Sunrise: 8:09 am MDT
- Sunset: 6:31 pm MDT
- details ▼
Models point to a combination of gloomy, bright and damp weather is expected.
Rainfall is predicted for Thursday and Friday.
Substantial differences in temperature are forecasted in the upcoming period. The maximum temperature will vary between 46.4°F and 68°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 28.4°F to 41°F.
Expect the warmest day on Monday, with temperatures peaking at 68°F; Friday will be the coldest day, with the highest temperature of 46.4°F.
Rainfall is predicted for Thursday and Friday.
Substantial differences in temperature are forecasted in the upcoming period. The maximum temperature will vary between 46.4°F and 68°F, while the difference in minimum temperatures will be also substantial, as the overnight lows will vary from 28.4°F to 41°F.
Expect the warmest day on Monday, with temperatures peaking at 68°F; Friday will be the coldest day, with the highest temperature of 46.4°F.
Updated: Oct 18, 2026 @ 01:43:52 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, a mix of clouds and blue sky is expected.
Tomorrow, the maximum temperature in Corvallis, Montana, will be 64.4°F, while the minimum temperature will be 33.8°F.
Tomorrow, the maximum temperature will be notably higher than the average highest temperature of 50°F in October. The lowest temperature will be in line with the average low of 30.4°F.
Tomorrow, the maximum temperature will be notably higher than the average highest temperature of 50°F in October. The lowest temperature will be in line with the average low of 30.4°F.
On Sunday, in Corvallis, sunrise will be at 7:58 am and sunset at 6:44 pm (MDT).
Tomorrow, the daylight will last for 10h and 46min.
