Flathead Lake, MT 14 Day Weather
Quick Weather Clicks
Settings
Sun & Moon


Flathead Lake, MT Weather Forecast


Flathead Lake, MT Weather Forecast Dated: 917 AM Tue Sep 01 2026 (Flathead Lake Time)
Expect a cool pattern with a mix of sun and clouds and frequent chances of rain over the next two weeks. moderate humidity and no major pressure swings will dominate.
Tuesday, September 1, 2026
Mid-Morning
62°F 17°C
Partly Cloudy
Mid-Afternoon
80°F 27°C
Overcast
Early-Evening
72°F 22°C
Overcast
Warm and summery near 80°F 27°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling.
Wednesday, September 2, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
63°F 17°C
Light Showers
Early-Evening
49°F 9°C
Scattered Showers
Mildly cool near 63°F 17°C, scattered downpours possible, with increasing humidity and barometric pressure rising. Winds turning from the SSW to the S at 5 mph 8 km/h.
Thursday, September 3, 2026
Mid-Morning
50°F 10°C
Cloudy
Mid-Afternoon
52°F 11°C
Light Showers
Early-Evening
49°F 10°C
Light Showers
Chilly near 52°F 11°C, dry early, with showers continuing through afternoon and evening, with steady humidity and steady pressure. Winds switching from the SSW to the S at 9 mph 13 km/h.
Friday, September 4, 2026
Mid-Morning
49°F 10°C
Light Fog
Mid-Afternoon
60°F 16°C
Scattered Showers
Early-Evening
59°F 15°C
Sunny
Cool with a high near 60°F 16°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Saturday, September 5, 2026
Mid-Morning
50°F 10°C
Scattered Showers
Mid-Afternoon
71°F 21°C
Cloudy
Early-Evening
62°F 17°C
Scattered Showers
Mild with a high of 71°F 21°C, scattered downpours possible, with lower humidity and steady pressure.
Sunday, September 6, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
65°F 18°C
Overcast
Pleasant near 72°F 22°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling.
Monday, September 7, 2026
Mid-Morning
55°F 13°C
Light Showers
Mid-Afternoon
66°F 19°C
Scattered Showers
Early-Evening
60°F 16°C
Overcast
Comfortable at 66°F 19°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Tuesday, September 8, 2026
Mid-Morning
49°F 9°C
Light Showers
Mid-Afternoon
52°F 11°C
Scattered Showers
Early-Evening
51°F 11°C
Scattered Showers
Crisp with a high near 52°F 11°C, scattered downpours possible, with steady humidity and steady pressure.
Wednesday, September 9, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
58°F 15°C
Sunny
Refreshing around 67°F 19°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the S to the WSW at 8 mph 13 km/h.
Thursday, September 10, 2026
Mid-Morning
51°F 11°C
Overcast
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
56°F 13°C
Overcast
Mildly cool near 64°F 18°C, overcast throughout the day, with lower humidity and steady pressure. Winds out of the WSW at 10 mph 15 km/h.
Friday, September 11, 2026
Mid-Morning
51°F 11°C
Partly Cloudy
Mid-Afternoon
62°F 17°C
Sunny
Early-Evening
56°F 13°C
Sunny
Comfortable at 62°F 17°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.
Saturday, September 12, 2026
Mid-Morning
47°F 8°C
Scattered Showers
Mid-Afternoon
56°F 13°C
Scattered Thunderstorms
Early-Evening
50°F 10°C
Light Showers
Crisp with a high near 56°F 13°C, locally heavy downpours at times, with increasing humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
63°F 17°C
Partly Cloudy
Early-Evening
55°F 13°C
Overcast
Refreshing around 63°F 17°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
49°F 9°C
Sunny
Mid-Afternoon
65°F 19°C
Sunny
Early-Evening
60°F 16°C
Sunny
Mildly cool near 65°F 19°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Flathead Lake, MT Weather Radar Map
Use the map search tool if you want to place a location marker on the radar map...
Weather World