Weather forecast for tomorrowGreat Falls, MT
Weather forecast for tomorrow
Monday Oct 19, 2026
- 70°F
- 39°F
Mostly Sunny
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 8mphSSW 196°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:50 am MDT
- Sunset: 6:29 pm MDT
- details ▼
Tomorrow, on Monday, October 19, sunshine will take center stage, with just faint traces of clouds.
Temperature fluctuations will be substantial, ranging from a peak of an agreeable 69.8°F to a low of a cold 39.2°F.
With a forecast of 69.8°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise will be at 7:50 am and sunset at 6:29 pm; tomorrow's daylight will last for 10h and 40min.
Temperature fluctuations will be substantial, ranging from a peak of an agreeable 69.8°F to a low of a cold 39.2°F.
With a forecast of 69.8°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise will be at 7:50 am and sunset at 6:29 pm; tomorrow's daylight will last for 10h and 40min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 39°C.
Coldest hour: 6 am 39°C.
Chance of precipitation
Highest chance: 3 am 9%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:41°F
Mostly Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphSSW 203°
- Humidity: 70%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:37°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSSW 207°
- Humidity: 74%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:37°F
Mostly Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSSW 211°
- Humidity: 77%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:34°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphSSW 207°
- Humidity: 81%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:50 am
- 8 am
- 37°F
- Feels like:34°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 4mphSSW 204°
- Humidity: 84%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 46°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphSW 214°
- Humidity: 65%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 57°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSSW 211°
- Humidity: 46%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 2 pm
- 66°F
- Feels like:66°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSW 209°
- Humidity: 35%
- Pressure: 29.83"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 68°F
- Feels like:68°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphS 189°
- Humidity: 33%
- Pressure: 29.8"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphESE 107°
- Humidity: 39%
- Pressure: 29.8"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:29 pm
- 8 pm
- 55°F
- Feels like:54°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphE 99°
- Humidity: 52%
- Pressure: 29.83"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 52°F
- Feels like:50°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphS 178°
- Humidity: 57%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of gloomy and bright weather is expected.
The temperature will vary between the lowest temperature of 37.4°F and the highest temperature of 68°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will align more closely with September's average high of 71.2°F than with October's 54.5°F. The lowest temperature is similar to October's typical minimum of 37.8°F.
The temperature will vary between the lowest temperature of 37.4°F and the highest temperature of 68°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will align more closely with September's average high of 71.2°F than with October's 54.5°F. The lowest temperature is similar to October's typical minimum of 37.8°F.
Updated: Oct 18, 2026 @ 07:04:47 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, in Great Falls, predominantly sunny weather will make for pleasant outdoor conditions.
Tomorrow, the highest temperature will be 69.8°F, while the lowest temperature will be 39.2°F.
The maximum temperature will be significantly higher than the average highest temperature of 54.5°F in October. The lowest temperature will be in line with the average low of 37.8°F.
The maximum temperature will be significantly higher than the average highest temperature of 54.5°F in October. The lowest temperature will be in line with the average low of 37.8°F.
On Monday, in Great Falls, sunrise will be at 7:50 am and sunset at 6:29 pm (MDT).
In Great Falls, tomorrow, there will be 10h and 40min of daylight.
