LEWISTOWN, MT 59457 Weather Forecast & Current Conditions

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LEWISTOWN, MT
Current Weather

7:54 AM MST NOV 17, 2025
Clear
43°F
Feels Like: 39°F
Dewpoint: 37°F
Rel. Hum.: 79%
Visibility: 10 miles
Wind: SE at 6 mph
Pressure: 29.64 inches
Last 72 hours

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LEWISTOWN, MT 59457
Weather Forecast

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REST OF TODAY
Partly cloudy. Haze. Highs 75 to 85. Southeast winds 5 to 15 mph.
TONIGHT
Cloudy with a 20 percent chance of rain showers. Haze through the night. Lows 50 to 60. North winds 5 to 15 mph.
WEDNESDAY
Mostly cloudy with a 20 percent chance of rain showers. Haze. Highs 65 to 75. Northwest winds 5 to 15 mph.
WEDNESDAY NIGHT
Cooler. Partly cloudy. Lows 45 to 50. North winds 5 to 10 mph shifting to the south after midnight.
THURSDAY
Partly cloudy. A 20 percent chance of thunderstorms in the afternoon. Highs 70 to 80. Southeast winds up to 10 mph.
THURSDAY NIGHT AND FRIDAY
Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Lows 50 to 55. Highs 65 to 75. Chance of precipitation 50 percent.
FRIDAY NIGHT
Partly cloudy. Lows 45 to 50.
SATURDAY
Partly cloudy with a 20 percent chance of rain showers. Highs 65 to 75.
SATURDAY NIGHT
Mostly cloudy with a 40 percent chance of rain showers. Lows 45 to 50.
SUNDAY
Partly cloudy with a 20 percent chance of rain showers. Highs 65 to 75.
SUNDAY NIGHT
Mostly cloudy with a 20 percent chance of rain showers. Lows 45 to 50.
MONDAY
Mostly cloudy with a 40 percent chance of rain showers. Highs 65 to 75.

Visible Weather Satellite
LEWISTOWN, MT 59457
Infrared Weather Satellite
LEWISTOWN, MT 59457
NEXRAD Weather Radar
LEWISTOWN, MT 59457

LEWISTOWN, MT 3 hourly weather forecast

weather forecast created  4:00 PM PST 11/16/2025
Monday
17 NOV 2025
LEWISTOWN, MT 59457 weather forecast Day 1, 0 hours 11 PM 43° 39° Mostly Cloudy 2%

0% Thunder
( 0% severe)
SSE   6 73% 35°
Low 39° LEWISTOWN, MT 59457 weather forecast Day 1, 3 hours 2 AM 41° 38° Mostly Cloudy SSE   5 79% 35°
High 57° LEWISTOWN, MT 59457 weather forecast Day 1, 6 hours 5 AM 40° 38° Mostly Cloudy 2%

0% Thunder
( 0% severe)
S   3 82% 35°

Mostly Cloudy



LEWISTOWN, MT 59457 weather forecast Day 1, 9 hours 8 AM 40° 38° Partly Cloudy SSW   3 85% 36°
LEWISTOWN, MT 59457 weather forecast Day 1, 12 hours 11 AM 52° 52° Partly Cloudy 3%

0% Thunder
( 0% severe)
W   1 56% 37°
LEWISTOWN, MT 59457 weather forecast Day 1, 15 hours 2 PM 56° 56° Mostly Cloudy WNW   3 49% 37°
LEWISTOWN, MT 59457 weather forecast Day 1, 18 hours 5 PM 50° 50° Mostly Cloudy 10%
RAIN
<.01 in
0% Thunder
( 0% severe)
NW   1 63% 38°
LEWISTOWN, MT 59457 weather forecast Day 1, 21 hours 8 PM 44° 42° Mostly Cloudy SW   3 79% 38°
Tuesday
18 NOV 2025
LEWISTOWN, MT 59457 weather forecast Day 2, 0 hours 11 PM 42° 39° Mostly Cloudy 8%

0% Thunder
( 0% severe)
SW   5 82% 37°
Low 34° LEWISTOWN, MT 59457 weather forecast Day 2, 3 hours 2 AM 40° 37° Mostly Cloudy WSW   5 85% 36°
High 55° LEWISTOWN, MT 59457 weather forecast Day 2, 6 hours 5 AM 38° 36° Mostly Cloudy 7%

0% Thunder
( 0% severe)
WSW   3 89% 35°

Mostly Cloudy



LEWISTOWN, MT 59457 weather forecast Day 2, 9 hours 8 AM 37° 34° Mostly Cloudy SW   3 92% 35°
LEWISTOWN, MT 59457 weather forecast Day 2, 12 hours 11 AM 49° 49° Partly Cloudy 5%

0% Thunder
( 0% severe)
W   2 58% 35°
LEWISTOWN, MT 59457 weather forecast Day 2, 15 hours 2 PM 53° 53° Partly Cloudy WNW   3 50% 35°
LEWISTOWN, MT 59457 weather forecast Day 2, 18 hours 5 PM 47° 46° Mostly Cloudy 11%
RAIN
<.01 in
0% Thunder
( 0% severe)
E   3 63% 35°
LEWISTOWN, MT 59457 weather forecast Day 2, 21 hours 8 PM 41° 38° Mostly Cloudy S   5 79% 35°

LEWISTOWN, MT extended weather forecast

Wednesday
19 NOV 2025
Thursday
20 NOV 2025
Friday
21 NOV 2025
Saturday
22 NOV 2025
Sunday
23 NOV 2025
Low 35° Low 27° Low 30° Low 33° Low 31°
High 49° High 54° High 57° High 51° High 51°
LEWISTOWN, MT 59457 weather forecast Day 3 LEWISTOWN, MT 59457 weather forecast Day 4 LEWISTOWN, MT 59457 weather forecast Day 5 LEWISTOWN, MT 59457 weather forecast Day 6 LEWISTOWN, MT 59457 weather forecast Day 7
Overcast
2% Rain
Mostly Cloudy
6% Rain/Snow
Partly Cloudy
5% Rain/Snow
Overcast
15% Rain/Snow
Overcast
18% Snow
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