Acton, MT Weather Forecast & Current Conditions

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Acton, MT Weather Maps

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Acton Weather Map
UTC Time: 9/17/2026, 12:28
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Acton, MT

Today
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Friday
Thunderstorms
82°/ 55° 28°/ 13°
100%
Saturday
Thunderstorms
65°/ 50° 18°/ 10°
90%
Sunday
Rain Showers
72°/ 48° 22°/
40%
Monday
Sunny
78°/ 52° 26°/ 11°
0%
Tuesday
Sunny
80°/ 52° 27°/ 11°
0%
Wednesday
Sunny
82°28°
0%

Day: Partly sunny. Patchy fog early in the morning. Highs in the upper 70s. North winds 5 to 10 mph in the morning shifting to the east in the afternoon.

Night: Mostly cloudy. Lows in the mid 50s. Southwest winds 5 to 10 mph.

Columbus, MT

Today
Mostly Cloudy
78°/ 48° 26°/
0%
Friday
Thunderstorms
78°/ 50° 26°/ 10°
100%
Saturday
Thunderstorms
65°/ 45° 18°/
90%
Sunday
Rain Showers
72°/ 45° 22°/
20%
Monday
Sunny
78°/ 45° 26°/
0%
Tuesday
Sunny
80°/ 45° 27°/
0%
Wednesday
Sunny
80°27°
0%

Day: Mostly cloudy. Patchy fog early in the morning. Highs in the upper 70s. Northwest winds 5 to 10 mph in the morning shifting to the southeast 5 to 15 mph in the afternoon.

Night: Decreasing clouds. Lows in the upper 40s. Southeast winds 5 to 15 mph in the evening shifting to the southwest 5 to 10 mph overnight.

Ryegate, MT

Today
Sunny
75°/ 52° 24°/ 11°
0%
Friday
Thunderstorms
78°/ 52° 26°/ 11°
90%
Saturday
Thunderstorms
65°/ 48° 18°/
90%
Sunday
Rain Showers
72°/ 45° 22°/
20%
Monday
Sunny
78°/ 48° 26°/
0%
Tuesday
Sunny
78°/ 48° 26°/
0%
Wednesday
Sunny
78°26°
0%

Day: Mostly sunny. Highs in the mid 70s. Southeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the lower 50s. West winds 5 to 10 mph.

Joliet, MT

Today
Mostly Cloudy
78°/ 52° 26°/ 11°
0%
Friday
Thunderstorms
78°/ 50° 26°/ 10°
100%
Saturday
Thunderstorms
62°/ 45° 17°/
90%
Sunday
Rain Showers
70°/ 45° 21°/
30%
Monday
Sunny
78°/ 48° 26°/
0%
Tuesday
Sunny
78°/ 45° 26°/
0%
Wednesday
Sunny
78°26°
0%

Day: Mostly cloudy. Patchy fog early in the morning. Highs in the upper 70s. Northwest winds 5 to 10 mph in the morning shifting to the east 5 to 15 mph in the afternoon.

Night: Decreasing clouds. Lows in the lower 50s. Southwest winds 5 to 15 mph.

Roundup, MT

Today
Partly Cloudy
78°/ 52° 26°/ 11°
0%
Friday
Rain Showers
78°/ 52° 26°/ 11°
90%
Saturday
Thunderstorms
65°/ 48° 18°/
90%
Sunday
Rain Showers
72°/ 48° 22°/
30%
Monday
Sunny
78°/ 48° 26°/
0%
Tuesday
Sunny
80°/ 48° 27°/
0%
Wednesday
Sunny
80°27°
0%

Day: Partly sunny. Patchy fog early in the morning. Highs in the upper 70s. Southeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the lower 50s. Southwest winds 5 to 10 mph.

Custer, MT

Today
Partly Cloudy
82°/ 55° 28°/ 13°
0%
Friday
Rain Showers
82°/ 55° 28°/ 13°
100%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Sunday
Thunderstorms
72°/ 48° 22°/
60%
Monday
Partly Cloudy
78°/ 50° 26°/ 10°
0%
Tuesday
Sunny
82°/ 50° 28°/ 10°
0%
Wednesday
Sunny
82°28°
0%

Day: Decreasing clouds. Patchy fog early in the morning. Highs in the lower 80s. East winds 5 to 10 mph.

Night: Decreasing clouds. Lows in the mid 50s. Southwest winds 5 to 10 mph.

Pryor, MT

Today
Partly Cloudy
82°/ 52° 28°/ 11°
0%
Friday
Thunderstorms
82°/ 52° 28°/ 11°
100%
Saturday
Thunderstorms
68°/ 48° 20°/
90%
Sunday
Thunderstorms
70°/ 45° 21°/
70%
Monday
Sunny
78°/ 48° 26°/
0%
Tuesday
Sunny
82°/ 48° 28°/
0%
Wednesday
Sunny
85°29°
0%

Day: Increasing clouds. Patchy fog early in the morning. Highs in the lower 80s. Southeast winds 5 to 15 mph.

Night: Mostly cloudy. Patchy fog overnight. Lows in the lower 50s. Southeast winds 5 to 15 mph.

Bridger, MT

Today
Mostly Cloudy
78°/ 55° 26°/ 13°
20%
Friday
Thunderstorms
78°/ 52° 26°/ 11°
100%
Saturday
Thunderstorms
65°/ 48° 18°/
90%
Sunday
Rain Showers
68°/ 48° 20°/
40%
Monday
Sunny
75°/ 48° 24°/
0%
Tuesday
Sunny
78°/ 48° 26°/
0%
Wednesday
Sunny
78°26°
0%

Day: Mostly cloudy. Highs in the upper 70s. Northwest winds 5 to 10 mph in the morning shifting to the southeast 10 to 20 mph in the afternoon.

Night: Mostly cloudy with a 20 percent chance of rain showers early in the evening, then partly cloudy in the late evening and overnight. Lows in the mid 50s. Southeast winds 10 to 20 mph.

Red Lodge, MT

Today
Rain Showers
72°/ 55° 22°/ 13°
40%
Friday
Thunderstorms
72°/ 50° 22°/ 10°
100%
Saturday
Thunderstorms
58°/ 45° 14°/
90%
Sunday
Thunderstorms
65°/ 45° 18°/
40%
Monday
Sunny
70°/ 48° 21°/
0%
Tuesday
Sunny
72°/ 48° 22°/
0%
Wednesday
Sunny
72°22°
0%

Day: Mostly cloudy. A 40 percent chance of rain showers late in the afternoon. Highs in the lower 70s. Southeast winds 5 to 15 mph.

Night: Mostly cloudy with a 40 percent chance of rain showers early in the evening, then partly cloudy in the late evening and overnight. Lows in the mid 50s. Southwest winds 5 to 15 mph.

Harlowton, MT

Today
Sunny
75°/ 48° 24°/
0%
Friday
Thunderstorms
78°/ 50° 26°/ 10°
100%
Saturday
Thunderstorms
65°/ 45° 18°/
90%
Sunday
Partly Cloudy
72°/ 45° 22°/
0%
Monday
Sunny
78°/ 48° 26°/
0%
Tuesday
Sunny
78°/ 48° 26°/
0%
Wednesday
Sunny
78°26°
0%

Day: Mostly sunny. Highs in the mid 70s. West winds 5 to 10 mph in the morning shifting to the southeast 5 to 15 mph in the afternoon.

Night: Mostly cloudy. Lows in the upper 40s. South winds 5 to 15 mph in the evening shifting to the west overnight.

Fishtail, MT

Today
Rain Showers
75°/ 52° 24°/ 11°
30%
Friday
Thunderstorms
75°/ 52° 24°/ 11°
100%
Saturday
Thunderstorms
62°/ 48° 17°/
100%
Sunday
Rain Showers
68°/ 48° 20°/
40%
Monday
Sunny
75°/ 48° 24°/
0%
Tuesday
Sunny
78°/ 48° 26°/
0%
Wednesday
Sunny
78°26°
0%

Day: Mostly cloudy in the morning then becoming mostly sunny early in the afternoon then becoming cloudy late in the afternoon. A 30 percent chance of rain showers late in the afternoon. Highs in the mid 70s. Northwest winds 5 to 10 mph in the morning shifting to the east 5 to 15 mph in the afternoon.

Night: Mostly cloudy with a 20 percent chance of rain showers early in the evening, then mostly clear in the late evening and overnight. Lows in the lower 50s. Southwest winds 5 to 10 mph.

Hardin, MT

Today
Partly Cloudy
82°/ 52° 28°/ 11°
0%
Friday
Thunderstorms
82°/ 52° 28°/ 11°
100%
Saturday
Thunderstorms
68°/ 48° 20°/
90%
Sunday
Thunderstorms
72°/ 45° 22°/
70%
Monday
Partly Cloudy
78°/ 48° 26°/
0%
Tuesday
Sunny
82°/ 48° 28°/
0%
Wednesday
Sunny
82°28°
0%

Day: Partly sunny. Patchy fog early in the morning. Highs in the lower 80s. Southeast winds 5 to 10 mph.

Night: Decreasing clouds. Patchy fog after 3 am. Lows in the lower 50s. Southeast winds 5 to 15 mph.

Big Timber, MT

Today
Rain Showers
75°/ 52° 24°/ 11°
20%
Friday
Thunderstorms
78°/ 52° 26°/ 11°
100%
Saturday
Thunderstorms
62°/ 48° 17°/
100%
Sunday
Rain Showers
72°/ 48° 22°/
20%
Monday
Sunny
78°/ 48° 26°/
0%
Tuesday
Sunny
78°/ 48° 26°/
0%
Wednesday
Sunny
78°26°
0%

Day: Partly sunny. A 20 percent chance of rain showers late in the afternoon. Highs in the mid 70s. Southeast winds 5 to 10 mph.

Night: Mostly cloudy. A 20 percent chance of rain showers early in the evening. Lows in the lower 50s. Southwest winds 5 to 10 mph.

Hysham, MT

Today
Partly Cloudy
82°/ 55° 28°/ 13°
0%
Friday
Sunny
82°/ 55° 28°/ 13°
100%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Sunday
Thunderstorms
70°/ 48° 21°/
70%
Monday
Partly Cloudy
78°/ 50° 26°/ 10°
0%
Tuesday
Sunny
82°/ 50° 28°/ 10°
0%
Wednesday
Sunny
82°28°
0%

Day: Partly sunny. Highs in the lower 80s. East winds 5 to 15 mph.

Night: Mostly cloudy. Lows in the mid 50s. Southeast winds 5 to 10 mph.

Melville, MT

Today
Partly Cloudy
72°/ 52° 22°/ 11°
0%
Friday
Thunderstorms
72°/ 50° 22°/ 10°
100%
Saturday
Thunderstorms
58°/ 45° 14°/
90%
Sunday
Sunny
68°/ 48° 20°/
0%
Monday
Sunny
72°/ 48° 22°/
0%
Tuesday
Sunny
75°/ 48° 24°/
0%
Wednesday
Sunny
75°24°
0%

Day: Increasing clouds. Highs in the lower 70s. South winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the lower 50s. West winds 5 to 15 mph.

Basin, WY

Tonight
Mostly Cloudy
52°11°
0%
Thursday
Mostly Cloudy
75°/ 52° 24°/ 11°
0%
Friday
Thunderstorms
80°/ 50° 27°/ 10°
90%
Saturday
Thunderstorms
68°/ 45° 20°/
80%
Sunday
Thunderstorms
70°/ 45° 21°/
40%
Monday
Sunny
75°/ 48° 24°/
0%
Tuesday
Sunny
80°/ 48° 27°/
0%
Wednesday
Sunny
80°27°
0%

Night: Mostly cloudy. Near steady temperature in the lower 50s.

Cooke City, MT

Today
Thunderstorms
72°/ 40° 22°/
50%
Friday
Thunderstorms
68°/ 38° 20°/
90%
Saturday
Thunderstorms
60°/ 32° 16°/
90%
Sunday
Thunderstorms
65°/ 32° 18°/
30%
Monday
Sunny
70°/ 32° 21°/
0%
Tuesday
Sunny
70°/ 35° 21°/
0%
Wednesday
Sunny
70°21°
0%

Day: Mostly cloudy. Slight chance of rain showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. East winds 5 to 10 mph in the morning shifting to the south in the afternoon. Chance of precipitation 50 percent.

Night: Decreasing clouds. Slight chance of rain showers early in the evening. Slight chance of rain showers after 3 am. Patchy fog overnight. Lows around 40. Southeast winds 5 to 10 mph in the evening shifting to the southwest overnight. Chance of precipitation 20 percent.

Colstrip, MT

Today
Mostly Cloudy
82°/ 55° 28°/ 13°
0%
Friday
Partly Cloudy
82°/ 55° 28°/ 13°
90%
Saturday
Thunderstorms
68°/ 50° 20°/ 10°
100%
Sunday
Thunderstorms
70°/ 48° 21°/
70%
Monday
Partly Cloudy
78°/ 48° 26°/
0%
Tuesday
Sunny
82°/ 50° 28°/ 10°
0%
Wednesday
Sunny
82°28°
0%

Day: Mostly cloudy. Patchy fog early in the morning. Highs in the lower 80s. East winds 5 to 15 mph.

Night: Mostly cloudy. Patchy fog after 3 am. Lows in the mid 50s. Southeast winds 5 to 15 mph.

Judith Gap, MT

Today
Sunny
72°/ 50° 22°/ 10°
0%
Friday
Thunderstorms
72°/ 48° 22°/
90%
Saturday
Thunderstorms
62°/ 45° 17°/
90%
Sunday
Partly Cloudy
68°/ 45° 20°/
0%
Monday
Sunny
75°/ 45° 24°/
0%
Tuesday
Sunny
75°/ 45° 24°/
0%
Wednesday
Sunny
75°24°
0%

Day: Mostly sunny. Highs in the lower 70s. South winds 10 to 20 mph.

Night: Mostly cloudy. Lows around 50. Southeast winds 5 to 15 mph.

Clark, WY

Tonight
Mostly Cloudy
50°10°
0%
Thursday
Thunderstorms
72°/ 52° 22°/ 11°
30%
Friday
Thunderstorms
75°/ 50° 24°/ 10°
90%
Saturday
Thunderstorms
62°/ 45° 17°/
90%
Sunday
Thunderstorms
65°/ 45° 18°/
40%
Monday
Sunny
72°/ 50° 22°/ 10°
0%
Tuesday
Sunny
75°/ 50° 24°/ 10°
0%
Wednesday
Sunny
75°24°
0%

Night: Mostly cloudy. Near steady temperature around 50.

Names listed above may include county names.

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