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Fishtail, MT Weather Forecast
Fishtail, MT Weather Forecast Dated: 928 AM Thu Sep 17 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. comfortable humidity and no major pressure swings will dominate.
Thursday, September 17, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
68°F 20°C
Overcast
Pleasant near 75°F 24°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds turning from the N to the WSW at 8 mph 13 km/h.
Friday, September 18, 2026
Mid-Morning
65°F 18°C
Scattered Showers
Mid-Afternoon
79°F 26°C
Scattered Showers
Early-Evening
59°F 15°C
Light Rain
Comfortable with temperatures reaching 79°F 26°C, scattered downpours possible, with increasing humidity and steady pressure. Winds building from NNW at 3 mph 5 km/h to NW at 14 mph 22 km/h. Gusts up to 21 mph 34 km/h.
Saturday, September 19, 2026
Mid-Morning
55°F 13°C
Nearby Thunderstorms
Mid-Afternoon
63°F 17°C
Light Showers
Early-Evening
58°F 15°C
Light Showers
Comfortable at 63°F 17°C, heavy thunderstorms conditions at times, with steady humidity and steady pressure. Winds N at 10 mph 16 km/h.
Sunday, September 20, 2026
Mid-Morning
59°F 15°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
68°F 20°C
Sunny
Mild temperatures up to 73°F 23°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Monday, September 21, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
71°F 21°C
Overcast
Mild with a high of 78°F 26°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling.
Tuesday, September 22, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
54°F 12°C
Sunny
Mildly cool near 61°F 16°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure rising. Winds easing from NW 26 mph 41 km/h to SSW 12 mph 18 km/h.
Wednesday, September 23, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
75°F 24°C
Partly Cloudy
Early-Evening
64°F 18°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds building from SSW at 0 mph 1 km/h to SSW at 9 mph 15 km/h.
Thursday, September 24, 2026
Mid-Morning
58°F 14°C
Sunny
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
68°F 20°C
Sunny
Enjoyable around 76°F 24°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Friday, September 25, 2026
Mid-Morning
66°F 19°C
Partly Cloudy
Mid-Afternoon
87°F 31°C
Cloudy
Early-Evening
74°F 24°C
Overcast
Warm temperatures up to 87°F 31°C, cloudy throughout the day, with steady humidity and barometric pressure falling. Winds turning from the WSW to the SW at 8 mph 13 km/h.
Saturday, September 26, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
87°F 30°C
Cloudy
Early-Evening
74°F 24°C
Light Showers
Very warm with a high of 87°F 30°C, drier conditions through late afternoon before showers move in, with steady humidity and barometric pressure falling. Winds out of the SW at 14 mph 23 km/h.
Sunday, September 27, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
76°F 24°C
Overcast
Early-Evening
58°F 14°C
Light Showers
Pleasant near 76°F 24°C, mainly dry until evening showers arrive, with increasing humidity and steady pressure. Winds building from WSW at 4 mph 6 km/h to NNE at 13 mph 21 km/h.
Monday, September 28, 2026
Mid-Morning
51°F 10°C
Scattered Showers
Mid-Afternoon
46°F 8°C
Scattered Showers
Early-Evening
44°F 6°C
Overcast
Crisp with a high near 46°F 8°C, locally heavy downpours at times, with lower humidity and barometric pressure rising. Winds swinging from the N to the ENE at 3 mph 5 km/h.
Tuesday, September 29, 2026
Mid-Morning
40°F 4°C
Scattered Showers
Mid-Afternoon
44°F 7°C
Scattered Showers
Early-Evening
45°F 8°C
Scattered Showers
Nippy around 44°F 7°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling.
Wednesday, September 30, 2026
Mid-Morning
45°F 7°C
Sunny
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
55°F 13°C
Scattered Showers
Mildly cool near 61°F 16°C, scattered downpours possible, with lower humidity and steady pressure.
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