Weather forecast for tomorrowHalfmoon, MT

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 59°F
  • 30°F
Sunny
Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 4mphE 88°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 8:01 am MDT
  • Sunset: 6:42 pm MDT
  • ▼
On Sunday, in Halfmoon, clear skies and sunshine are anticipated.
Temperatures are expected to move from a peak of a mild 59°F to a low of a freezing 30.2°F.
It will feel warmer than usual, as the temperature reflects September's normal high of 65.5°F, not October's.
Sunrise will be at 8:01 am and sunset at 6:42 pm; tomorrow's daylight will last for 10h and 41min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 57°C.
Coldest hour: 6 am 32°C.

Chance of precipitation

Highest chance: 9 am 8%.

Hourly weather forecast

  • 12 am
  • 39°F
  • Feels like:
    39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphWSW 253°
  • Humidity: 81%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 37°F
  • Feels like:
    37°F
Mostly Clear
Mostly Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphW 263°
  • Humidity: 86%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 34°F
  • Feels like:
    34°F
Mostly Clear
Mostly Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 1mphNNE 18°
  • Humidity: 91%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 32°F
  • Feels like:
    32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphN 2°
  • Humidity: 96%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 am
  • 30°F
  • Feels like:
    30°F
Mostly Clear
Mostly Clear
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 2mphN 0°
  • Humidity: 99%
  • Pressure: 30.18"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Sunrise: 8:01 am
  • 10 am
  • 41°F
  • Feels like:
    41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphNNE 26°
  • Humidity: 84%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 50°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNE 47°
  • Humidity: 62%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 54°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphS 171°
  • Humidity: 49%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSE 167°
  • Humidity: 39%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSSE 158°
  • Humidity: 45%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:42 pm
  • 8 pm
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 21°
  • Humidity: 65%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 39°F
  • Feels like:
    36°F
Mostly Clear
Mostly Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphN 5°
  • Humidity: 73%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of cloud-filled and sunny weather is forecasted.
The temperature will be between a minimum of 30.2°F and a maximum of 57.2°F. The warmest part of the day will be from 3 pm to 5 pm.
Tomorrow, the peak temperature is expected to align more with September than with October's typical high. The minimum temperature will be close to October's average low of 30.7°F.
Updated: Oct 17, 2026 @ 16:59:11 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Halfmoon, sun-filled conditions are expected to persist.

Tomorrow, the maximum temperature will be 59°F, while the minimum temperature will be 30.2°F.
Tomorrow, the maximum temperature will be notably higher than the average highest temperature of 48.4°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Halfmoon, sunrise will be at 8:01 am and sunset at 6:42 pm (MDT).

In Halfmoon, Montana, tomorrow, there will be 10h and 41min of daylight.