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St. Regis, MT Weather Forecast
St. Regis, MT Weather Forecast Dated: 104 PM Wed Sep 09 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Wednesday, September 9, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
73°F 23°C
Partly Cloudy
Early-Evening
62°F 17°C
Cloudy
Pleasant near 73°F 23°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds out of the W at 10 mph 16 km/h.
Thursday, September 10, 2026
Mid-Morning
58°F 14°C
Cloudy
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
64°F 18°C
Overcast
Comfortable with temperatures reaching 73°F 23°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds switching from the SSW to the SW at 8 mph 12 km/h. Gusts up to 20 mph 32 km/h.
Friday, September 11, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
66°F 19°C
Sunny
Early-Evening
56°F 14°C
Cloudy
Comfortable at 66°F 19°C, sunny through the afternoon, turning overcast this evening, with steady humidity and steady pressure.
Saturday, September 12, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
56°F 13°C
Overcast
Early-Evening
51°F 11°C
Overcast
Crisp with a high near 56°F 13°C, overcast throughout the day, with lower humidity and barometric pressure falling.
Sunday, September 13, 2026
Mid-Morning
39°F 4°C
Light Showers
Mid-Afternoon
49°F 9°C
Scattered Showers
Early-Evening
43°F 7°C
Cloudy
Brisk around 49°F 9°C, scattered downpours possible, with lower humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
43°F 6°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
56°F 13°C
Cloudy
Mildly cool near 65°F 18°C, sunny through the afternoon, turning overcast this evening, with lower humidity and barometric pressure falling.
Tuesday, September 15, 2026
Mid-Morning
46°F 8°C
Overcast
Mid-Afternoon
63°F 17°C
Overcast
Early-Evening
55°F 13°C
Overcast
Comfortable at 63°F 17°C, overcast throughout the day, with steady humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
43°F 6°C
Scattered Showers
Mid-Afternoon
49°F 9°C
Scattered Showers
Early-Evening
46°F 8°C
Light Showers
Crisp with a high near 49°F 9°C, scattered downpours possible, with steady humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
44°F 7°C
Cloudy
Mid-Afternoon
70°F 21°C
Overcast
Early-Evening
60°F 16°C
Partly Cloudy
Mild temperatures up to 70°F 21°C, cloudy in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling.
Friday, September 18, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
64°F 18°C
Sunny
Mild with a high of 74°F 23°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
51°F 11°C
Scattered Showers
Mid-Afternoon
62°F 17°C
Nearby Thunderstorms
Early-Evening
54°F 13°C
Nearby Thunderstorms
Comfortable at 62°F 17°C, scattered downpours possible, with lower humidity and steady pressure. Winds W at 8 mph 13 km/h.
Sunday, September 20, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
60°F 16°C
Sunny
Comfortable with temperatures reaching 70°F 21°C, sunny throughout the day, with lower humidity and steady pressure.
Monday, September 21, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
76°F 25°C
Sunny
Early-Evening
64°F 18°C
Sunny
Enjoyable around 76°F 25°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds swinging from the SE to the SW at 7 mph 11 km/h.
Tuesday, September 22, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
81°F 27°C
Overcast
Early-Evening
67°F 19°C
Partly Cloudy
Warm temperatures up to 81°F 27°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling.
St. Regis, MT Weather Radar Map
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