Boulder, MT Weather Forecast & Current Conditions

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Boulder, MT Weather Maps

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Boulder Weather Map
UTC Time: 9/15/2026, 23:09
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Boulder, MT

Tonight
Mostly Cloudy
35°
0%
Wednesday
Sunny
56°/ 38° 13°/
0%
Thursday
Sunny
66°/ 44° 19°/
70%
Friday
Thunderstorms
60°/ 40° 16°/
90%
Saturday
Thunderstorms
58°14°
50%
Sat Night
Clear
39°
0%
Tuesday
Clear
39°
0%
Monday
Clear
39°
0%
Mon Night
Cloudy
42°
0%

Night: Partly cloudy then becoming mostly cloudy after midnight then becoming partly cloudy. Lows 35 to 41. North winds 5 to 10 mph with gusts to around 30 mph.

Toston, MT

Tonight
Mostly Cloudy
41°
0%
Wednesday
Sunny
68°/ 42° 20°/
0%
Thursday
Sunny
78°/ 52° 26°/ 11°
70%
Friday
Thunderstorms
72°/ 48° 22°/
80%
Saturday
Thunderstorms
68°/ 44° 20°/
50%
Sunday
Clear
75°/ 45° 24°/
0%
Monday
Clear
75°24°
0%

Night: Partly cloudy then becoming mostly cloudy in the late evening and early morning then becoming partly cloudy. Lows 41 to 47. North winds 5 to 15 mph with gusts to around 30 mph.

Anaconda, MT

Tonight
Mostly Cloudy
35°
0%
Wednesday
Sunny
72°/ 35° 22°/
0%
Thursday
Thunderstorms
70°/ 40° 21°/
90%
Friday
Thunderstorms
72°/ 38° 22°/
90%
Saturday
Rain
72°/ 38° 22°/
40%
Sunday
Sunny
68°/ 38° 20°/
0%
Monday
Sunny
68°/ 38° 20°/
0%

Night: Mostly cloudy in the evening then becoming partly cloudy. Patchy fog and frost late in the night. Lows in the mid 30s to lower 40s. North winds to 15 mph in the evening.

Harrison, MT

Tonight
Mostly Cloudy
42°
0%
Wednesday
Sunny
68°/ 42° 20°/
0%
Thursday
Thunderstorms
75°/ 50° 24°/ 10°
50%
Friday
Thunderstorms
72°/ 45° 22°/
80%
Saturday
Thunderstorms
70°21°
50%
Sat Night
Clear
45°
0%
Tuesday
Clear
45°
0%
Monday
Clear
45°
0%
Mon Night
Cloudy
45°
0%

Night: Mostly clear then becoming mostly cloudy in the late evening and early morning then becoming partly cloudy. Lows in the lower 40s. Northeast winds up to 10 mph shifting to the north after midnight. Gusts up to 30 mph.

Helena, MT

Tonight
Mostly Cloudy
45°
0%
Wednesday
Partly Cloudy
68°/ 42° 20°/
0%
Thursday
Sunny
78°/ 48° 26°/
70%
Fri-Fri Night
Thunderstorms
75°24°
70%
Saturday
Thunderstorms
72°22°
40%
Sat Night
Clear
48°
0%
Tuesday
Clear
48°
0%
Monday
Clear
48°
0%
Mon Night
Cloudy
48°
0%

Night: Mostly cloudy early in the evening then becoming partly cloudy. Lows in the mid 40s. Northwest winds 5 to 15 mph with gusts to around 30 mph.

Marysville, MT

Tonight
Mostly Cloudy
36°
0%
Wednesday
Sunny
54°/ 37° 12°/
0%
Thursday
Sunny
65°/ 44° 18°/
80%
Friday
Thunderstorms
60°/ 43° 16°/
70%
Saturday
Rain
58°14°
40%
Sat Night
Clear
45°
0%
Tuesday
Clear
45°
0%
Monday
Clear
45°
0%
Mon Night
Cloudy
45°
0%

Night: Mostly cloudy early in the evening then becoming partly cloudy. Lows 36 to 42. North winds up to 10 mph with gusts to around 25 mph.

Trident, MT

Tonight
Mostly Cloudy
38°
0%
Wednesday
Sunny
57°/ 42° 14°/
0%
Thursday
Partly Cloudy
66°/ 50° 19°/ 10°
50%
Friday
Thunderstorms
61°/ 45° 16°/
70%
Saturday
Thunderstorms
58°/ 45° 14°/
50%
Sunday
Clear
62°17°
0%
Monday
Clear
62°17°
0%

Night: Partly cloudy then becoming mostly cloudy in the late evening and early morning then becoming partly cloudy. Lows in the upper 30s. Northeast winds up to 10 mph with gusts to around 30 mph.

Bannack, MT

Tonight
Mostly Cloudy
38°
0%
Wednesday
Sunny
67°/ 42° 19°/
0%
Thursday
Thunderstorms
72°/ 48° 22°/
50%
Friday
Thunderstorms
66°/ 42° 19°/
70%
Saturday
Thunderstorms
65°18°
40%
Sat Night
Clear
42°
0%
Tuesday
Clear
42°
0%
Monday
Clear
42°
0%
Mon Night
Mostly Cloudy
45°
0%

Night: Mostly clear then becoming mostly cloudy in the late evening and early morning then becoming partly cloudy. Lows in the upper 30s. Northeast winds up to 10 mph. Gusts up to 30 mph in the evening.

Canyon Creek, MT

Tonight
Mostly Cloudy
42°
0%
Wednesday
Rain
56°/ 42° 13°/
20%
Thursday
Sunny
69°/ 52° 21°/ 11°
70%
Fri-Fri Night
Thunderstorms
66°19°
70%
Saturday
Rain
64°18°
40%
Sat Night
Clear
48°
0%
Tuesday
Clear
48°
0%
Monday
Clear
48°
0%
Mon Night
Cloudy
48°
0%

Night: Mostly cloudy then becoming partly cloudy after midnight then becoming mostly cloudy. Lows in the lower 40s. North winds 5 to 15 mph with gusts to around 35 mph.

Bozeman, MT

Tonight
Mostly Cloudy
38°
0%
Wednesday
Sunny
68°/ 42° 20°/
0%
Thursday
Thunderstorms
75°/ 50° 24°/ 10°
40%
Friday
Thunderstorms
72°/ 45° 22°/
80%
Saturday
Thunderstorms
70°/ 45° 21°/
50%
Sunday
Clear
75°24°
0%
Monday
Clear
75°24°
0%

Night: Mostly clear then becoming mostly cloudy in the late evening and early morning then becoming partly cloudy. Patchy fog late in the night. Lows in the upper 30s. East winds 5 to 10 mph with gusts to around 25 mph shifting to the south after midnight.

Dewey, MT

Tonight
Mostly Cloudy
31°-1°
0%
Wednesday
Sunny
60°/ 35° 16°/
0%
Thursday
Thunderstorms
62°/ 38° 17°/
90%
Friday
Thunderstorms
54°/ 34° 12°/
90%
Saturday
Rain
55°13°
40%
Sat Night
Clear
34°
0%
Tuesday
Clear
34°
0%
Monday
Clear
34°
0%
Mon Night
Cloudy
36°
0%

Night: Mostly cloudy until early morning then becoming partly cloudy. Lows 31 to 39. North winds up to 10 mph.

Cameron, MT

Tonight
Cloudy
38°
0%
Wednesday
Sunny
66°/ 45° 19°/
0%
Thursday
Thunderstorms
75°/ 50° 24°/ 10°
50%
Friday
Thunderstorms
72°/ 42° 22°/
70%
Sat Night
Rain
40°
20%
Sunday
Clear
75°/ 45° 24°/
0%
Monday
Clear
75°24°
0%

Night: Partly cloudy. Areas of fog late in the night. Lows in the upper 30s. Northeast winds up to 10 mph. Gusts up to 25 mph in the evening.

Martinsdale, MT

Tonight
Mostly Cloudy
38°
0%
Wednesday
Sunny
65°/ 40° 18°/
0%
Thursday
Partly Cloudy
75°/ 48° 24°/
50%
Friday
Thunderstorms
70°/ 45° 21°/
80%
Saturday
Thunderstorms
65°/ 42° 18°/
50%
Sunday
Clear
72°22°
0%
Monday
Clear
72°22°
0%

Night: Mostly clear then becoming mostly cloudy in the late evening and early morning then becoming partly cloudy. Lows in the upper 30s. East winds 5 to 15 mph with gusts to around 35 mph shifting to the north with gusts to around 25 mph after midnight.

Sula, MT

Tonight
Mostly Cloudy
35°
0%
Wednesday
Sunny
65°/ 38° 18°/
0%
Thursday
Thunderstorms
70°/ 40° 21°/
90%
Friday
Thunderstorms
60°/ 38° 16°/
90%
Saturday
Rain
60°/ 38° 16°/
20%
Sunday
Sunny
65°/ 38° 18°/
0%
Monday
Sunny
68°/ 40° 20°/
0%

Night: Mostly cloudy until early morning then becoming partly cloudy. Lows in the mid 30s to lower 40s.

Bynum, MT

Tonight
Rain
45°
20%
Wednesday
Rain
58°/ 42° 14°/
20%
Thursday
Sunny
70°/ 50° 21°/ 10°
70%
Fri-Fri Night
Thunderstorms
68°20°
70%
Saturday
Rain
68°20°
40%
Sat Night
Clear
48°
0%
Tuesday
Clear
48°
0%
Monday
Clear
48°
0%

Night: Mostly cloudy with a 20 percent chance of rain. Lows in the mid 40s. North winds 5 to 10 mph.

Big Sky, MT

Tonight
Clear
38°
0%
Wednesday
Sunny
58°/ 40° 14°/
20%
Thursday
Thunderstorms
61°/ 43° 16°/
70%
Friday
Thunderstorms
56°/ 38° 13°/
70%
Sat Night
Rain
37°
20%
Sunday
Clear
58°/ 39° 14°/
0%
Monday
Clear
58°14°
0%

Night: Mostly clear. Lows in the upper 30s. South winds up to 10 mph. Gusts up to 30 mph in the evening.

Clyde Park, MT

Tonight
Mostly Cloudy
38°
0%
Wednesday
Sunny
70°/ 42° 21°/
0%
Thursday
Thunderstorms
75°/ 45° 24°/
20%
Friday
Thunderstorms
72°/ 42° 22°/
80%
Saturday
Thunderstorms
68°/ 42° 20°/
60%
Sunday
Sunny
72°/ 42° 22°/
0%
Monday
Sunny
75°/ 45° 24°/
0%

Night: Mostly clear early in the evening then becoming mostly cloudy in the late evening and overnight then becoming mostly clear after 3 am. Lows in the upper 30s. Southeast winds 5 to 15 mph in the evening shifting to the west 5 to 10 mph overnight.

Great Falls, MT

Tonight
Mostly Cloudy
42°
0%
Wednesday
Partly Cloudy
62°/ 42° 17°/
0%
Thursday
Sunny
72°/ 52° 22°/ 11°
50%
Friday
Thunderstorms
72°/ 50° 22°/ 10°
70%
Saturday
Thunderstorms
68°/ 48° 20°/
50%
Sunday
Clear
75°24°
0%
Monday
Clear
75°24°
0%

Night: Mostly cloudy. Lows in the lower 40s. Northeast winds 10 to 15 mph shifting to the northwest after midnight.

East Missoula, MT

Tonight
Mostly Cloudy
35°
0%
Wednesday
Sunny
65°/ 38° 18°/
0%
Thursday
Sunny
70°/ 45° 21°/
90%
Friday
Thunderstorms
65°/ 40° 18°/
70%
Saturday
Rain
65°/ 40° 18°/
30%
Sunday
Sunny
68°/ 40° 20°/
0%
Monday
Sunny
68°/ 40° 20°/
0%

Night: Mostly cloudy until early morning then becoming partly cloudy. Patchy fog late in the night. Lows in the mid 30s to lower 40s.

Monarch, MT

Tonight
Mostly Cloudy
38°
0%
Wednesday
Partly Cloudy
55°/ 42° 13°/
0%
Thursday
Sunny
66°/ 46° 19°/
50%
Friday
Thunderstorms
62°/ 44° 17°/
90%
Saturday
Thunderstorms
58°/ 42° 14°/
50%
Sunday
Sunny
62°/ 43° 17°/
0%
Monday
Sunny
64°18°
0%

Night: Partly cloudy early in the evening then becoming mostly cloudy. Lows in the upper 30s. East winds 5 to 10 mph shifting to the southwest after midnight. Gusts up to 30 mph.

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