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Fort Shaw, MT Weather Forecast
Fort Shaw, MT Weather Forecast Dated: 717 AM Thu Sep 10 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, September 10, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
73°F 23°C
Overcast
Pleasant near 79°F 26°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds easing from SW 20 mph 32 km/h to W 12 mph 19 km/h. Gusts up to 25 mph 39 km/h.
Friday, September 11, 2026
Mid-Morning
51°F 11°C
Overcast
Mid-Afternoon
54°F 12°C
Overcast
Early-Evening
51°F 10°C
Overcast
Cool and brisk at 54°F 12°C, overcast throughout the day, with steady humidity and barometric pressure rising. Winds blowing from the NNE at 10 mph 16 km/h.
Saturday, September 12, 2026
Mid-Morning
48°F 9°C
Overcast
Mid-Afternoon
49°F 10°C
Overcast
Early-Evening
47°F 9°C
Overcast
Chilly near 49°F 10°C, overcast throughout the day, with steady humidity and steady pressure. Winds moving from the NE to the NNE at 12 mph 19 km/h.
Sunday, September 13, 2026
Mid-Morning
42°F 5°C
Rain
Mid-Afternoon
40°F 5°C
Light Rain
Early-Evening
41°F 5°C
Scattered Showers
Nippy around 40°F 5°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure rising. Snow accumulation up to 2 in. up to 5 cm. Winds easing from NE 17 mph 28 km/h to SSW 3 mph 5 km/h.
Monday, September 14, 2026
Mid-Morning
42°F 6°C
Sunny
Mid-Afternoon
59°F 15°C
Sunny
Early-Evening
54°F 13°C
Sunny
Refreshing around 59°F 15°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds shifting from the SSW to the WSW at 7 mph 11 km/h.
Tuesday, September 15, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
47°F 8°C
Scattered Showers
Early-Evening
43°F 7°C
Scattered Showers
Cool and brisk at 47°F 8°C, locally heavy downpours at times, with increasing humidity and barometric pressure rising. Winds NNW at 11 mph 18 km/h.
Wednesday, September 16, 2026
Mid-Morning
41°F 5°C
Scattered Showers
Mid-Afternoon
42°F 5°C
Overcast
Early-Evening
43°F 6°C
Overcast
Nippy around 42°F 5°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
41°F 5°C
Sunny
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
59°F 15°C
Sunny
Cool with a high near 63°F 17°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Friday, September 18, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
68°F 20°C
Sunny
Mild temperatures up to 72°F 22°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
60°F 15°C
Overcast
Mid-Afternoon
86°F 30°C
Partly Cloudy
Early-Evening
72°F 23°C
Scattered Showers
Very warm with a high of 86°F 30°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds switching from the SSE to the W at 6 mph 10 km/h.
Sunday, September 20, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
65°F 19°C
Overcast
Early-Evening
59°F 15°C
Sunny
Comfortable at 65°F 19°C, overcast through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds tapering down from SW 15 mph 24 km/h to W 5 mph 8 km/h.
Monday, September 21, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
66°F 19°C
Sunny
Comfortable with temperatures reaching 71°F 22°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds swinging from the WSW to the SE at 4 mph 6 km/h.
Tuesday, September 22, 2026
Mid-Morning
54°F 12°C
Cloudy
Mid-Afternoon
80°F 27°C
Partly Cloudy
Early-Evening
70°F 21°C
Sunny
Quite warm around 80°F 27°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds shifting from the SSW to the NNE at 4 mph 6 km/h.
Wednesday, September 23, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
72°F 23°C
Sunny
Warm temperatures up to 81°F 27°C, sunny throughout the day, with lower humidity and barometric pressure falling.
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