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Lake McDonald, MT Weather Forecast
Lake McDonald, MT Weather Forecast Dated: 355 PM Mon Sep 28 2026
Expect a cool pattern with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Monday, September 28, 2026
Mid-Morning
37°F 3°C
Sunny
Mid-Afternoon
57°F 14°C
Sunny
Early-Evening
50°F 10°C
Sunny
Brisk around 57°F 14°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling.
Tuesday, September 29, 2026
Mid-Morning
43°F 6°C
Sunny
Mid-Afternoon
54°F 12°C
Scattered Showers
Early-Evening
47°F 8°C
Overcast
Cool and brisk at 54°F 12°C, scattered downpours possible, with increasing humidity and steady pressure. Winds out of the SW at 8 mph 12 km/h.
Wednesday, September 30, 2026
Mid-Morning
45°F 7°C
Light Showers
Mid-Afternoon
59°F 15°C
Partly Cloudy
Early-Evening
49°F 9°C
Sunny
Comfortable at 59°F 15°C, morning showers, giving way to clearing skies, with lower humidity and steady pressure. Winds switching from the SSW to the E at 5 mph 8 km/h.
Thursday, October 1, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
49°F 10°C
Overcast
Crisp with a high near 57°F 14°C, overcast throughout the day, with steady humidity and steady pressure.
Friday, October 2, 2026
Mid-Morning
44°F 7°C
Cloudy
Mid-Afternoon
66°F 19°C
Sunny
Early-Evening
57°F 14°C
Sunny
Refreshing around 66°F 19°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the SSW to the WSW at 8 mph 13 km/h.
Saturday, October 3, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
54°F 13°C
Sunny
Mildly cool near 63°F 17°C, sunny throughout the day, with lower humidity and steady pressure.
Sunday, October 4, 2026
Mid-Morning
44°F 6°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
54°F 12°C
Sunny
Comfortable at 65°F 18°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Monday, October 5, 2026
Mid-Morning
45°F 7°C
Partly Cloudy
Mid-Afternoon
67°F 20°C
Overcast
Early-Evening
57°F 14°C
Partly Cloudy
Cool with a high near 67°F 20°C, cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling.
Tuesday, October 6, 2026
Mid-Morning
47°F 8°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
58°F 14°C
Sunny
Mild temperatures up to 68°F 20°C, sunny throughout the day, with lower humidity and steady pressure.
Wednesday, October 7, 2026
Mid-Morning
49°F 9°C
Sunny
Mid-Afternoon
71°F 22°C
Overcast
Early-Evening
59°F 15°C
Sunny
Mild with a high of 71°F 22°C, sunny in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and steady pressure.
Thursday, October 8, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
60°F 16°C
Sunny
Pleasant near 72°F 22°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling.
Friday, October 9, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
60°F 16°C
Sunny
Comfortable with temperatures reaching 73°F 23°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Saturday, October 10, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
61°F 16°C
Sunny
Enjoyable around 75°F 24°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Sunday, October 11, 2026
Mid-Morning
49°F 10°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
59°F 15°C
Sunny
Mild temperatures up to 72°F 22°C, sunny throughout the day, with lower humidity and barometric pressure falling.
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