Weather forecast for tomorrowPerma, MT

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 63°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphNE 41°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 8:01 am MDT
  • Sunset: 6:45 pm MDT
  • ▼
Tomorrow, on Sunday, moderate cloud cover will mix with sunshine throughout the day.
The maximum anticipated temperature is a comfortable 62.6°F, while the minimum temperature will be a wintry 37.4°F.
Tomorrow, the anticipated high will be higher and much closer to September's average high of 68.5°F than October's 51.8°F.
Sunrise will be at 8:01 am and sunset at 6:45 pm; tomorrow's daylight will last for 10h and 44min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 6 pm 61°C.
Coldest period: 6 am - 9 am 39°C.

Chance of precipitation

Highest chance: 3 am - 9 am 4%.

Hourly weather forecast

  • 12 am
  • 43°F
  • Feels like:
    43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphSSW 202°
  • Humidity: 77%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphSSW 209°
  • Humidity: 80%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphS 186°
  • Humidity: 82%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 39°F
  • Feels like:
    39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphSSW 200°
  • Humidity: 83%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 am
  • 37°F
  • Feels like:
    37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphSW 215°
  • Humidity: 83%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 8:01 am
  • 10 am
  • 43°F
  • Feels like:
    43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 140°
  • Humidity: 77%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 50°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphNE 44°
  • Humidity: 63%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 57°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphENE 57°
  • Humidity: 53%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNE 47°
  • Humidity: 44%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphNE 50°
  • Humidity: 49%
  • Pressure: 29.83"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Sunset: 6:45 pm
  • 8 pm
  • 54°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphN 8°
  • Humidity: 63%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphWSW 251°
  • Humidity: 70%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, primarily dull and occasionally sunny weather is expected.
The temperature will be between the lowest temperature of 37.4°F and the highest temperature of 62.6°F. The warmest part of the day will be at 4 pm and 5 pm.
Tomorrow, temperatures will be more resembling the climate of September than the usual maximum in October. The nighttime low will be a few degrees higher than the typical October minimum temperature of 32.7°F.
Updated: Oct 18, 2026 @ 05:11:31 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Perma, moments of sunshine will break through the patchy clouds.

Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 37.4°F.
The highest temperature tomorrow will be notably higher than the average maximum of 51.8°F in October. The lowest temperature tomorrow will be a couple of degrees higher than the average low temperature.

On Sunday, in Perma, sunrise will be at 8:01 am and sunset at 6:45 pm (MDT).

In Perma, tomorrow, there will be 10h and 44min of daylight.