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Harkness Lakes, MT Weather Forecast
Harkness Lakes, MT Weather Forecast Dated: 411 PM Sat Sep 26 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 26, 2026
Mid-Morning
41°F 5°C
Overcast
Mid-Afternoon
53°F 12°C
Overcast
Early-Evening
49°F 9°C
Overcast
Brisk around 53°F 12°C, overcast throughout the day, with lower humidity and steady pressure. Winds turning from the WNW to the N at 6 mph 9 km/h.
Sunday, September 27, 2026
Mid-Morning
46°F 8°C
Overcast
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
53°F 12°C
Overcast
Cool and brisk at 57°F 14°C, overcast throughout the day, with steady humidity and barometric pressure falling.
Monday, September 28, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
56°F 13°C
Light Showers
Early-Evening
51°F 11°C
Scattered Showers
Chilly near 56°F 13°C, locally heavy downpours at times, with lower humidity and steady pressure.
Tuesday, September 29, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
56°F 13°C
Sunny
Cool with a high near 61°F 16°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.
Wednesday, September 30, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
59°F 15°C
Sunny
Refreshing around 65°F 18°C, sunny throughout the day, with steady humidity and steady pressure.
Thursday, October 1, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
60°F 15°C
Sunny
Mildly cool near 67°F 19°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the S to the SSE at 10 mph 16 km/h.
Friday, October 2, 2026
Mid-Morning
50°F 10°C
Partly Cloudy
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
54°F 12°C
Sunny
Comfortable at 61°F 16°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the S to the NNW at 6 mph 9 km/h.
Saturday, October 3, 2026
Mid-Morning
40°F 4°C
Nearby Thunderstorms
Mid-Afternoon
48°F 9°C
Scattered Showers
Early-Evening
41°F 5°C
Scattered Showers
Crisp with a high near 48°F 9°C, locally heavy thunderstorms at times, with steady humidity and barometric pressure rising. Winds swinging from the NNW to the N at 8 mph 14 km/h.
Sunday, October 4, 2026
Mid-Morning
39°F 4°C
Sunny
Mid-Afternoon
59°F 15°C
Sunny
Early-Evening
52°F 11°C
Sunny
Refreshing around 59°F 15°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds shifting from the SSW to the S at 9 mph 14 km/h.
Monday, October 5, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
57°F 14°C
Overcast
Mildly cool near 66°F 19°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds SSW at 9 mph 14 km/h.
Tuesday, October 6, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
70°F 21°C
Partly Cloudy
Early-Evening
61°F 16°C
Sunny
Pleasant near 70°F 21°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds switching from the S to the SSE at 10 mph 16 km/h.
Wednesday, October 7, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
61°F 16°C
Sunny
Comfortable with temperatures reaching 70°F 21°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the SSE to the S at 12 mph 19 km/h.
Thursday, October 8, 2026
Mid-Morning
53°F 11°C
Overcast
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
57°F 14°C
Overcast
Enjoyable around 68°F 20°C, overcast through the afternoon, turning cloudy this evening, with increasing humidity and steady pressure. Winds decreasing from SSE 13 mph 21 km/h to WNW 5 mph 8 km/h.
Friday, October 9, 2026
Mid-Morning
48°F 9°C
Sunny
Mid-Afternoon
62°F 17°C
Sunny
Early-Evening
57°F 14°C
Sunny
Mildly cool near 62°F 17°C, sunny throughout the day, with lower humidity and barometric pressure falling.
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