LAKE MCDONALD, MT 59921 Weather Forecast & Current Conditions

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KALISPELL, MT
Current Weather

7:55 AM MDT MAY 17, 2026
Overcast
34°F
Feels Like: 34°F
Dewpoint: 34°F
Rel. Hum.: 100%
Visibility: 10 miles
Wind: Calm
Pressure: 30.03 inches
Last 72 hours

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LAKE MCDONALD, MT 59921
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Slight chance of rain in the morning. Snow likely early in the morning, then areas of snow in the late morning and afternoon. Patchy fog early in the morning. Chance of precipitation 70 percent. Snow level 4000 feet. Snow accumulations of 1 to 2 inches. Highs in the 40s. North winds to 15 mph in the afternoon.
TONIGHT
Mostly clear. Widespread frost through the night. Lows in the mid 20s to lower 30s. Northeast winds to 15 mph.
MONDAY
Partly cloudy. Widespread frost in the morning. A 20 percent chance of rain showers, thunderstorms and snow in the afternoon. Highs in the 50s.
MONDAY NIGHT
Partly cloudy. Widespread frost after midnight. Lows in the upper 20s to mid 30s.
TUESDAY
Mostly cloudy. Areas of frost in the morning. Chance of rain showers and a slight chance of thunderstorms in the afternoon. Chance of precipitation 50 percent. Highs in the 50s. Southwest winds to 15 mph.
TUESDAY NIGHT
Mostly cloudy. A chance of rain in the evening, then slight chance of rain and snow after midnight. Chance of precipitation 40 percent. Lows in the 30s to lower 40s.
WEDNESDAY
A chance of rain and snow in the morning, then rain likely and a slight chance of thunderstorms in the afternoon. Chance of precipitation 60 percent. Highs in the mid 50s to lower 60s.
WEDNESDAY NIGHT
Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s to lower 40s.
THURSDAY
Partly cloudy. Highs in the upper 50s to mid 60s.
THURSDAY NIGHT
Mostly cloudy. Chance of rain showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Chance of precipitation 40 percent. Lows in the upper 30s to mid 40s.
FRIDAY
Mostly cloudy. A chance of rain in the morning, then chance of rain showers and a slight chance of thunderstorms in the afternoon. Chance of precipitation 50 percent. Highs in the upper 50s to mid 60s.
FRIDAY NIGHT
Partly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s to mid 40s.
SATURDAY
Partly cloudy. Highs in the 60s to lower 70s.

Visible Weather Satellite
LAKE MCDONALD, MT 59921
Infrared Weather Satellite
LAKE MCDONALD, MT 59921
NEXRAD Weather Radar
LAKE MCDONALD, MT 59921

KALISPELL, MT 3 hourly weather forecast

weather forecast created  8:00 PM EDT  5/16/2026
Sunday
17 MAY 2026
LAKE MCDONALD, MT 59921 weather forecast Day 1, 0 hours 12 AM 39° 36° Mostly Cloudy 83%
RAIN
***
0% Thunder
( 7% severe)
SSE   5 85% 35°
Low 35° LAKE MCDONALD, MT 59921 weather forecast Day 1, 3 hours 3 AM 37° 35° Mostly Cloudy   CALM 92% 35°
High 53° LAKE MCDONALD, MT 59921 weather forecast Day 1, 6 hours 6 AM 36° 34° Mostly Cloudy 13%
RAIN
.01–.1 in
0% Thunder
( 7% severe)
  CALM 92% 34°

Mostly Cloudy



LAKE MCDONALD, MT 59921 weather forecast Day 1, 9 hours 9 AM 41° 37° Mostly Cloudy N   6 79% 35°
LAKE MCDONALD, MT 59921 weather forecast Day 1, 12 hours 12 PM 47° 42° Partly Cloudy 7%

0% Thunder
( 13% severe)
NNE   10 49% 29°
LAKE MCDONALD, MT 59921 weather forecast Day 1, 15 hours 3 PM 51° 46° Partly Cloudy NNE   13 37% 26°
LAKE MCDONALD, MT 59921 weather forecast Day 1, 18 hours 6 PM 52° 48° Partly Cloudy 3%

0% Thunder
( 3% severe)
NNE   12 36% 26°
LAKE MCDONALD, MT 59921 weather forecast Day 1, 21 hours 9 PM 46° 44° Partly Cloudy NNE   5 53% 30°
Monday
18 MAY 2026
LAKE MCDONALD, MT 59921 weather forecast Day 2, 0 hours 12 AM 38° 36° Partly Cloudy 1%

0% Thunder
( 0% severe)
N   1 76% 31°
Low 29° LAKE MCDONALD, MT 59921 weather forecast Day 2, 3 hours 3 AM 34° 32° Clear   CALM 85% 30°
High 60° LAKE MCDONALD, MT 59921 weather forecast Day 2, 6 hours 6 AM 32° 29° Partly Cloudy 0%

0% Thunder
( 2% severe)
  CALM 85% 28°

Partly Cloudy



LAKE MCDONALD, MT 59921 weather forecast Day 2, 9 hours 9 AM 44° 43° Clear   CALM 62% 32°
LAKE MCDONALD, MT 59921 weather forecast Day 2, 12 hours 12 PM 53° 53° Clear 4%

0% Thunder
( 20% severe)
S   3 45% 32°
LAKE MCDONALD, MT 59921 weather forecast Day 2, 15 hours 3 PM 57° 57° Partly Cloudy S   3 35% 30°
LAKE MCDONALD, MT 59921 weather forecast Day 2, 18 hours 6 PM 58° 57° Partly Cloudy 3%

0% Thunder
( 10% severe)
SSW   6 34% 30°
LAKE MCDONALD, MT 59921 weather forecast Day 2, 21 hours 9 PM 51° 51° Partly Cloudy   CALM 59% 37°

KALISPELL, MT extended weather forecast

Tuesday
19 MAY 2026
Wednesday
20 MAY 2026
Thursday
21 MAY 2026
Friday
22 MAY 2026
Saturday
23 MAY 2026
Low 39° Low 41° Low 41° Low 41° Low 39°
High 66° High 66° High 66° High 68° High 69°
LAKE MCDONALD, MT 59921 weather forecast Day 3 LAKE MCDONALD, MT 59921 weather forecast Day 4 LAKE MCDONALD, MT 59921 weather forecast Day 5 LAKE MCDONALD, MT 59921 weather forecast Day 6 LAKE MCDONALD, MT 59921 weather forecast Day 7
Overcast
29% Rain
Overcast
58% Rain
Mostly Cloudy
20% Rain
Mostly Cloudy
43% Rain
Partly Cloudy
12% Rain
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