Flat Reservoir, MT 14 Day Weather
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Flat Reservoir, MT Weather Forecast


Flat Reservoir, MT Weather Forecast Dated: 311 AM Thu Oct 15 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Thursday, October 15, 2026
Mid-Morning
42°F 6°C
Sunny
Mid-Afternoon
46°F 8°C
Sunny
Early-Evening
41°F 5°C
Sunny
Brisk around 46°F 8°C, sunny throughout the day, with steady humidity and barometric pressure rising. Winds turning from the NW to the NNW at 19 mph 30 km/h. Gusts up to 31 mph 50 km/h.
Friday, October 16, 2026
Mid-Morning
37°F 3°C
Sunny
Mid-Afternoon
59°F 15°C
Sunny
Early-Evening
52°F 11°C
Sunny
Mildly cool near 59°F 15°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the SSE to the S at 13 mph 20 km/h. Gusts up to 28 mph 46 km/h.
Saturday, October 17, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
75°F 24°C
Cloudy
Early-Evening
63°F 17°C
Overcast
Enjoyable around 75°F 24°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds moving from the SW to the S at 5 mph 8 km/h.
Sunday, October 18, 2026
Mid-Morning
51°F 11°C
Sunny
Mid-Afternoon
58°F 14°C
Sunny
Early-Evening
51°F 10°C
Sunny
Cool with a high near 58°F 14°C, sunny throughout the day, with lower humidity and steady pressure. Winds swinging from the NNW to the E at 6 mph 10 km/h.
Monday, October 19, 2026
Mid-Morning
47°F 8°C
Overcast
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
59°F 15°C
Overcast
Refreshing around 64°F 18°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds blowing from the SSE at 17 mph 28 km/h. Gusts up to 34 mph 55 km/h.
Tuesday, October 20, 2026
Mid-Morning
53°F 12°C
Partly Cloudy
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
61°F 16°C
Sunny
Pleasant near 73°F 23°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling. Winds turning from the SSE to the N at 4 mph 7 km/h.
Wednesday, October 21, 2026
Mid-Morning
48°F 9°C
Sunny
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
60°F 16°C
Sunny
Comfortable at 64°F 18°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the WNW to the ESE at 9 mph 14 km/h.
Thursday, October 22, 2026
Mid-Morning
53°F 12°C
Drizzle
Mid-Afternoon
46°F 8°C
Light Rain
Early-Evening
43°F 6°C
Drizzle
Crisp with a high near 46°F 8°C, persistent showers off and on through the day, with increasing humidity and barometric pressure rising. Winds building from NNW at 5 mph 8 km/h to WNW at 15 mph 24 km/h. Gusts up to 25 mph 41 km/h.
Friday, October 23, 2026
Mid-Morning
39°F 4°C
Cloudy
Mid-Afternoon
38°F 3°C
Blowing Snow
Early-Evening
36°F 2°C
Heavy Snow
Cold with a high near 38°F 3°C, blowing snow reducing visibility at times, with increasing humidity and barometric pressure rising. Winds NW at 19 mph 31 km/h. Gusts up to 28 mph 46 km/h.
Saturday, October 24, 2026
Mid-Morning
32°F 0°C
Overcast
Mid-Afternoon
40°F 5°C
Sunny
Early-Evening
37°F 3°C
Clear
Nippy around 40°F 5°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the NW to the WSW at 8 mph 13 km/h.
Sunday, October 25, 2026
Mid-Morning
36°F 2°C
Overcast
Mid-Afternoon
49°F 10°C
Sunny
Early-Evening
46°F 8°C
Overcast
Chilly near 49°F 10°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds building from WSW at 16 mph 26 km/h to WNW at 25 mph 40 km/h. Gusts up to 37 mph 59 km/h.
Monday, October 26, 2026
Mid-Morning
40°F 5°C
Sunny
Mid-Afternoon
47°F 8°C
Scattered Showers
Early-Evening
41°F 5°C
Clear
Crisp with a high near 47°F 8°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds decreasing from WNW 17 mph 27 km/h to WNW 7 mph 12 km/h.
Tuesday, October 27, 2026
Mid-Morning
40°F 4°C
Sunny
Mid-Afternoon
56°F 13°C
Partly Cloudy
Early-Evening
51°F 11°C
Overcast
Brisk around 56°F 13°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds moving from the SW to the SSW at 8 mph 13 km/h.
Wednesday, October 28, 2026
Mid-Morning
45°F 7°C
Cloudy
Mid-Afternoon
49°F 9°C
Partly Cloudy
Early-Evening
43°F 6°C
Overcast
Cool and brisk at 49°F 9°C, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and barometric pressure rising. Winds swinging from the NNW to the WNW at 16 mph 25 km/h. Gusts up to 27 mph 43 km/h.
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