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Capitol, MT Weather Forecast


Capitol, MT Weather Forecast Dated: 1132 AM Tue Sep 15 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Tuesday, September 15, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
64°F 18°C
Overcast
Refreshing around 67°F 19°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds turning from the WNW to the ESE at 13 mph 20 km/h. Gusts up to 20 mph 32 km/h.
Wednesday, September 16, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
79°F 26°C
Sunny
Early-Evening
69°F 21°C
Sunny
Comfortable with temperatures reaching 79°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds switching from the SSE to the N at 12 mph 19 km/h. Gusts up to 23 mph 36 km/h.
Thursday, September 17, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
66°F 19°C
Scattered Showers
Early-Evening
60°F 16°C
Scattered Showers
Comfortable at 66°F 19°C, locally heavy downpours at times, with increasing humidity and barometric pressure falling. Winds moving from the ESE to the SE at 11 mph 18 km/h. Gusts up to 20 mph 32 km/h.
Friday, September 18, 2026
Mid-Morning
61°F 16°C
Cloudy
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
63°F 17°C
Partly Cloudy
Mild temperatures up to 70°F 21°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds swinging from the SE to the ESE at 17 mph 27 km/h. Gusts up to 21 mph 34 km/h.
Saturday, September 19, 2026
Mid-Morning
57°F 14°C
Light Showers
Mid-Afternoon
64°F 18°C
Scattered Showers
Early-Evening
60°F 15°C
Scattered Showers
Refreshing around 64°F 18°C, scattered downpours possible, with lower humidity and steady pressure. Winds shifting from the ESE to the NW at 11 mph 18 km/h.
Sunday, September 20, 2026
Mid-Morning
58°F 14°C
Scattered Showers
Mid-Afternoon
67°F 19°C
Light Showers
Early-Evening
62°F 16°C
Sunny
Mildly cool near 67°F 19°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds turning from the NW to the E at 8 mph 13 km/h.
Monday, September 21, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
62°F 17°C
Sunny
Comfortable with temperatures reaching 69°F 20°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds out of the SE at 10 mph 16 km/h. Gusts up to 20 mph 32 km/h.
Tuesday, September 22, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
63°F 18°C
Scattered Showers
Enjoyable around 78°F 26°C, scattered downpours possible, with lower humidity and steady pressure. Winds moving from the SSE to the NNW at 18 mph 29 km/h. Gusts up to 26 mph 42 km/h.
Wednesday, September 23, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
65°F 19°C
Partly Cloudy
Early-Evening
60°F 16°C
Sunny
Refreshing around 65°F 19°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds swinging from the WNW to the E at 5 mph 9 km/h.
Thursday, September 24, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
72°F 22°C
Sunny
Very warm with a high of 81°F 27°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds shifting from the S to the SSE at 10 mph 16 km/h.
Friday, September 25, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
90°F 32°C
Sunny
Early-Evening
78°F 26°C
Sunny
Very hot with temperatures reaching 90°F 32°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the SW to the SE at 10 mph 16 km/h. Gusts up to 21 mph 34 km/h.
Saturday, September 26, 2026
Mid-Morning
74°F 23°C
Overcast
Mid-Afternoon
90°F 32°C
Overcast
Early-Evening
80°F 26°C
Partly Cloudy
Hot and sweltering around 90°F 32°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the S to the NW at 12 mph 19 km/h.
Sunday, September 27, 2026
Mid-Morning
70°F 21°C
Partly Cloudy
Mid-Afternoon
47°F 9°C
Light Showers
Early-Evening
49°F 10°C
Sunny
Brisk around 47°F 9°C, drier morning followed by scattered afternoon showers, with increasing humidity and barometric pressure rising. Winds picking up from SW at 8 mph 13 km/h to WNW at 22 mph 36 km/h. Gusts up to 38 mph 61 km/h.
Monday, September 28, 2026
Mid-Morning
47°F 8°C
Sunny
Mid-Afternoon
57°F 14°C
Sunny
Early-Evening
51°F 11°C
Overcast
Cool and brisk at 57°F 14°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds swinging from the WNW to the NE at 9 mph 14 km/h.
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