Weather forecast for tomorrowGarrison, MT
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 63°F
- 34°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 6mphE 97°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:53 am MDT
- Sunset: 6:39 pm MDT
- details ▼
On Sunday, in Garrison, a partly cloudy outlook will keep the sky interesting throughout the day.
A stark contrast will be evident between the daytime peak temperature of an enjoyable 62.6°F and the nighttime low of a wintry 33.8°F.
Tomorrow, the maximum temperature will be higher and more reflective of September's average high of 65.7°F than October's of 48.6°F.
Sunrise will be at 7:53 am and sunset at 6:39 pm; tomorrow's daylight will last for 10h and 46min.
A stark contrast will be evident between the daytime peak temperature of an enjoyable 62.6°F and the nighttime low of a wintry 33.8°F.
Tomorrow, the maximum temperature will be higher and more reflective of September's average high of 65.7°F than October's of 48.6°F.
Sunrise will be at 7:53 am and sunset at 6:39 pm; tomorrow's daylight will last for 10h and 46min.
Hourly overview
Hourly temperatures
Warmest period: 3 pm - 6 pm 59°C.
Coldest period: 6 am - 9 am 36°C.
Coldest period: 6 am - 9 am 36°C.
Chance of precipitation
Highest chance: 6 am - 9 am 5%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:41°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphW 273°
- Humidity: 64%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:41°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSW 218°
- Humidity: 73%
- Pressure: 30.09"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 37°F
- Feels like:37°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 1mphSSW 204°
- Humidity: 77%
- Pressure: 30.09"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 36°F
- Feels like:36°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 1mphSSW 203°
- Humidity: 84%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:53 am
- 8 am
- 34°F
- Feels like:34°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 1mphS 189°
- Humidity: 91%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 41°F
- Feels like:41°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphSE 132°
- Humidity: 79%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 50°F
- Feels like:50°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphE 90°
- Humidity: 60%
- Pressure: 30.09"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 2 pm
- 55°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphESE 118°
- Humidity: 47%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphNE 35°
- Humidity: 38%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphNNW 333°
- Humidity: 43%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:39 pm
- 8 pm
- 50°F
- Feels like:48°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphNNW 338°
- Humidity: 57%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 45°F
- Feels like:43°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 3mphE 80°
- Humidity: 68%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of cloudy and clear weather is predicted.
The temperature will be between the lowest temperature of 33.8°F and the highest temperature of 60.8°F. The warmest part of the day will be at 4 pm and 5 pm.
The maximum temperature will align more closely with September's average high of 65.7°F than with October's 48.6°F. The minimum temperature tomorrow will be a few degrees higher than October's average low.
The temperature will be between the lowest temperature of 33.8°F and the highest temperature of 60.8°F. The warmest part of the day will be at 4 pm and 5 pm.
The maximum temperature will align more closely with September's average high of 65.7°F than with October's 48.6°F. The minimum temperature tomorrow will be a few degrees higher than October's average low.
Updated: Oct 18, 2026 @ 00:49:17 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 Garrison, variable cloud cover will persist, but sunshine will break through.
Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 33.8°F.
The highest temperature will be noticeably higher than the average maximum of 48.6°F in October. The lowest temperature will be a few degrees higher than the average low of 29.8°F.
The highest temperature will be noticeably higher than the average maximum of 48.6°F in October. The lowest temperature will be a few degrees higher than the average low of 29.8°F.
On Sunday, in Garrison, sunrise will be at 7:53 am and sunset at 6:39 pm (MDT).
In Garrison, tomorrow, there will be 10h and 46min of daylight.
