Westby, MT 14 Day Weather - 59275 WeatherWorld.com
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Westby, MT Weather Forecast


Westby, MT Weather Forecast Dated: 1154 AM Sat Sep 12 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Saturday, September 12, 2026
Mid-Morning
48°F 9°C
Overcast
Mid-Afternoon
51°F 11°C
Overcast
Early-Evening
51°F 11°C
Cloudy
Brisk around 51°F 11°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds turning from the NW to the NE at 8 mph 12 km/h.
Sunday, September 13, 2026
Mid-Morning
47°F 8°C
Sunny
Mid-Afternoon
58°F 14°C
Partly Cloudy
Early-Evening
57°F 14°C
Cloudy
Mildly cool near 58°F 14°C, sunny in the morning, becoming cloudy through the afternoon and evening, with lower humidity and barometric pressure falling. Winds building from ESE at 5 mph 9 km/h to ESE at 16 mph 26 km/h. Gusts up to 28 mph 46 km/h.
Monday, September 14, 2026
Mid-Morning
54°F 12°C
Cloudy
Mid-Afternoon
52°F 11°C
Scattered Showers
Early-Evening
51°F 11°C
Scattered Showers
Chilly near 52°F 11°C, locally heavy downpours at times, with steady humidity and barometric pressure rising. Winds moving from the WSW to the WNW at 19 mph 30 km/h. Gusts up to 34 mph 54 km/h.
Tuesday, September 15, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
52°F 11°C
Overcast
Early-Evening
52°F 11°C
Overcast
Crisp with a high near 52°F 11°C, overcast throughout the day, with lower humidity and steady pressure. Winds swinging from the WNW to the ENE at 6 mph 10 km/h.
Wednesday, September 16, 2026
Mid-Morning
43°F 6°C
Light Showers
Mid-Afternoon
59°F 15°C
Sunny
Early-Evening
62°F 17°C
Sunny
Refreshing around 59°F 15°C, scattered morning showers before drying out later, with steady humidity and barometric pressure falling. Winds tapering down from ENE 17 mph 27 km/h to NE 4 mph 5 km/h.
Thursday, September 17, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
66°F 19°C
Sunny
Pleasant near 68°F 20°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the ESE to the W at 5 mph 8 km/h.
Friday, September 18, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
66°F 19°C
Sunny
Early-Evening
66°F 19°C
Sunny
Comfortable at 66°F 19°C, sunny throughout the day, with lower humidity and steady pressure.
Saturday, September 19, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
70°F 21°C
Sunny
Enjoyable around 70°F 21°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Sunday, September 20, 2026
Mid-Morning
59°F 15°C
Sunny
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
82°F 28°C
Sunny
Mild temperatures up to 77°F 25°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the SSE to the SW at 7 mph 11 km/h.
Monday, September 21, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
72°F 23°C
Cloudy
Mild with a high of 73°F 23°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds moving from the NNW to the S at 5 mph 8 km/h.
Tuesday, September 22, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
63°F 17°C
Partly Cloudy
Early-Evening
60°F 16°C
Cloudy
Comfortable at 63°F 17°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds swinging from the NW to the NNW at 13 mph 20 km/h. Gusts up to 23 mph 37 km/h.
Wednesday, September 23, 2026
Mid-Morning
47°F 9°C
Cloudy
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
51°F 11°C
Partly Cloudy
Crisp with a high near 55°F 13°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds shifting from the NNW to the E at 8 mph 12 km/h.
Thursday, September 24, 2026
Mid-Morning
47°F 8°C
Overcast
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
71°F 22°C
Overcast
Enjoyable around 69°F 20°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds tapering down from SE 17 mph 27 km/h to NNE 8 mph 13 km/h.
Friday, September 25, 2026
Mid-Morning
42°F 6°C
Overcast
Mid-Afternoon
51°F 11°C
Overcast
Early-Evening
51°F 10°C
Overcast
Cool and brisk at 51°F 11°C, overcast throughout the day, with lower humidity and steady pressure. Winds decreasing from N 15 mph 24 km/h to ENE 7 mph 11 km/h.
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