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Basin, MT Weather Forecast
Basin, MT Weather Forecast Dated: 1105 AM Sun Sep 13 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.
Sunday, September 13, 2026
Mid-Morning
44°F 7°C
Sunny
Mid-Afternoon
66°F 19°C
Partly Cloudy
Early-Evening
50°F 11°C
Sunny
Refreshing around 66°F 19°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds turning from the ESE to the NW at 8 mph 13 km/h.
Monday, September 14, 2026
Mid-Morning
39°F 4°C
Cloudy
Mid-Afternoon
49°F 10°C
Partly Cloudy
Early-Evening
42°F 5°C
Sunny
Cool and brisk at 49°F 10°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure rising. Winds switching from the WSW to the NW at 8 mph 12 km/h.
Tuesday, September 15, 2026
Mid-Morning
42°F 6°C
Overcast
Mid-Afternoon
58°F 15°C
Overcast
Early-Evening
48°F 9°C
Overcast
Comfortable at 58°F 15°C, overcast throughout the day, with steady humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
45°F 7°C
Sunny
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
57°F 14°C
Sunny
Cool with a high near 67°F 19°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Thursday, September 17, 2026
Mid-Morning
56°F 14°C
Sunny
Mid-Afternoon
74°F 24°C
Overcast
Early-Evening
65°F 18°C
Overcast
Mild with a high of 74°F 24°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling.
Friday, September 18, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
69°F 21°C
Scattered Showers
Early-Evening
53°F 12°C
Light Showers
Pleasant near 69°F 21°C, locally heavy downpours at times, with increasing humidity and steady pressure.
Saturday, September 19, 2026
Mid-Morning
49°F 9°C
Light Showers
Mid-Afternoon
60°F 15°C
Light Showers
Early-Evening
50°F 10°C
Light Showers
Comfortable at 60°F 15°C, rounds of showers expected off and on all day, with steady humidity and steady pressure.
Sunday, September 20, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
57°F 14°C
Sunny
Cool with a high near 65°F 18°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the SW to the WNW at 6 mph 9 km/h.
Monday, September 21, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
60°F 16°C
Sunny
Mild temperatures up to 70°F 21°C, sunny throughout the day, with lower humidity and steady pressure.
Tuesday, September 22, 2026
Mid-Morning
58°F 14°C
Partly Cloudy
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
63°F 18°C
Sunny
Mild with a high of 74°F 23°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
60°F 15°C
Overcast
Mid-Afternoon
76°F 25°C
Overcast
Early-Evening
67°F 20°C
Partly Cloudy
Pleasant near 76°F 25°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.
Thursday, September 24, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
54°F 12°C
Light Showers
Early-Evening
53°F 12°C
Nearby Thunderstorms
Crisp with a high near 54°F 12°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds swinging from the SSW to the S at 4 mph 7 km/h.
Friday, September 25, 2026
Mid-Morning
50°F 10°C
Partly Cloudy
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
56°F 13°C
Overcast
Refreshing around 66°F 19°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the SSW to the N at 7 mph 10 km/h.
Saturday, September 26, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
56°F 13°C
Overcast
Early-Evening
52°F 11°C
Overcast
Cool and brisk at 56°F 13°C, overcast throughout the day, with steady humidity and steady pressure.
Basin, MT Weather Radar Map
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