Weather forecast for tomorrowMcAllister, MT

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 68°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 15mphSSW 195°
  • Humidity: 38%
  • UV index: 3
  • Sunrise: 7:48 am MDT
  • Sunset: 6:34 pm MDT
  • ▼
Tomorrow, on Monday, October 19, skies will stay clear and sunny.
Considerable temperature fluctuations from a high of an agreeable 68°F to a low of an icy 39.2°F are expected.
The warmer conditions bring a maximum of 68°F, more representative of September than October.
Sunrise will be at 7:48 am and sunset at 6:34 pm; tomorrow's daylight will last for 10h and 46min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 39°C.

Chance of precipitation

Highest chance: 12 am 1%.

Hourly weather forecast

  • 12 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 199°
  • Humidity: 57%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 200°
  • Humidity: 60%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSW 197°
  • Humidity: 60%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 197°
  • Humidity: 60%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:48 am
  • 8 am
  • 39°F
  • Feels like:
    34°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSSW 198°
  • Humidity: 63%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 50°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 204°
  • Humidity: 48%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSSW 195°
  • Humidity: 34%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSSW 195°
  • Humidity: 25%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphS 191°
  • Humidity: 23%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphS 189°
  • Humidity: 26%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:34 pm
  • 8 pm
  • 54°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 192°
  • Humidity: 38%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 200°
  • Humidity: 45%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, a combination of sun-filled and cloudy weather is predicted.
The temperature will vary between a minimum of 39.2°F and a maximum of 68°F. The warmest part of the day is anticipated around 4 pm.
The maximum temperature will align more closely with September's average high of 63.5°F than with October's 45.5°F. The expected low will be also more comparable to what’s typical in September than in October.
Updated: Oct 18, 2026 @ 09:21:01 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, sunshine will likely continue with scattered clouds at most.

Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 39.2°F.
The maximum temperature will be significantly higher than the average highest temperature of 45.5°F in October. The lowest temperature will be also noticeably higher than the average low of 27.5°F.

On Monday, in McAllister, sunrise will be at 7:48 am and sunset at 6:34 pm (MDT).

In McAllister, the length of the day tomorrow will be 10h and 46min.