Weather forecast for tomorrowLake McDonald, MT

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 63°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphE 95°
  • Humidity: 58%
  • UV index: 2
  • Sunrise: 8:02 am MDT
  • Sunset: 6:38 pm MDT
  • ▼
On Monday, October 19, expect a partly sunny afternoon with variable cloud cover.
Temperatures will oscillate between a breezy 62.6°F at their highest and an icy 39.2°F at their lowest.
The forecast high of 62.6°F aligns more closely with September's typical high of 65.5°F than with October's usual 48.4°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 period: 3 am - 6 am 37°C.

Chance of precipitation

Highest chance: 6 am - 9 am 4%.

Hourly weather forecast

  • 12 am
  • 39°F
  • Feels like:
    39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNE 36°
  • Humidity: 69%
  • 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 10°
  • Humidity: 73%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 37°F
  • Feels like:
    37°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphNNE 30°
  • Humidity: 77%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphNNE 18°
  • Humidity: 77%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 am
  • 37°F
  • Feels like:
    37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphN 7°
  • Humidity: 78%
  • Pressure: 29.97"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 43°
  • Humidity: 72%
  • 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: 2mphNE 35°
  • Humidity: 53%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 57°F
  • Feels like:
    57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphS 185°
  • Humidity: 48%
  • 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: 3mphSSW 214°
  • Humidity: 43%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    59°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSW 222°
  • Humidity: 51%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:38 pm
  • 8 pm
  • 52°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphN 3°
  • Humidity: 61%
  • Pressure: 29.88"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 359°
  • Humidity: 66%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, primarily cloudy and occasionally clear weather is predicted.
The temperature will be between a minimum of 37.4°F and a maximum of 60.8°F. The warmest part of the day will be from 3 pm to 5 pm.
The forecasted maximum is more resembling September's typical high of 65.5°F than the average for October. The expected low will be also more consistent with what’s typical in September than in October.
Updated: Oct 18, 2026 @ 16:10:15 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Lake McDonald, moderate cloud cover will mix with sunshine throughout the day.

Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 39.2°F.
The highest temperature will be noticeably higher than the average maximum of 48.4°F in October. The lowest temperature will be a few 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, tomorrow, there will be 10h and 37min of daylight.