Weather forecast for tomorrowLake McDonald, MT

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 63°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphE 81°
  • Humidity: 57%
  • UV index: 2
  • Sunrise: 8:02 am MDT
  • Sunset: 6:38 pm MDT
  • ▼
Tomorrow, on Monday, high-altitude clouds may scatter across the sky, but the sun will still shine.
The anticipated temperature range extends from a high of an enjoyable 62.6°F to a low of an icy 39.2°F.
This October day will feature warmer weather, consistent with September's average of 65.5°F.
Sunrise will be at 8:02 am and sunset at 6:38 pm; tomorrow's daylight will last for 10h and 37min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 61°C.
Coldest hour: 6 am 36°C.

Chance of precipitation

Highest chance: 3 am - 9 am 3%.

Hourly weather forecast

  • 12 am
  • 39°F
  • Feels like:
    39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNE 39°
  • Humidity: 66%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 37°F
  • Feels like:
    37°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphN 11°
  • Humidity: 71%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 36°F
  • Feels like:
    36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphNNE 26°
  • Humidity: 77%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 36°F
  • Feels like:
    36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphNNE 18°
  • Humidity: 77%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 am
  • 37°F
  • Feels like:
    37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphNNE 15°
  • Humidity: 76%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 8:02 am
  • 10 am
  • 46°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNE 45°
  • Humidity: 70%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 26°
  • Humidity: 52%
  • 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: 3mphS 185°
  • Humidity: 49%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSW 214°
  • Humidity: 43%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 57°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphSW 220°
  • Humidity: 51%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:38 pm
  • 8 pm
  • 52°F
  • Feels like:
    52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNNW 347°
  • Humidity: 62%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    48°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphN 357°
  • Humidity: 65%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of overcast and sunny weather is predicted.
The temperature will vary between the lowest temperature of 35.6°F and the highest temperature of 60.8°F. The warmest part of the day will be from 3 pm to 5 pm.
The forecasted maximum is more similar to September's typical high of 65.5°F than the average for October. The minimum temperature will be also more resembling September's average low of 39.2°F than October's typical value of 30.7°F.
Updated: Oct 18, 2026 @ 12:28:00 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, a mix of clouds and blue sky is expected.

Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 39.2°F.
The maximum temperature will be significantly higher than the average highest temperature of 48.4°F in October. The lowest temperature will be a couple of degrees higher than the average low of 30.7°F.

On Monday, in Lake McDonald, sunrise will be at 8:02 am and sunset at 6:38 pm (MDT).

In Lake McDonald, the length of the day tomorrow will be 10h and 37min.