GRASS RANGE, MT 59032 Weather Forecast & Current Conditions

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LEWISTOWN, MT
Current Weather

12:54 PM MDT MAY 7, 2026
Broken Clouds
61°F
Feels Like: 59°F
Dewpoint: 34°F
Rel. Hum.: 36%
Visibility: 10 miles
Wind: WNW at 16 mph, gusts to 25
Pressure: 29.91 inches
Last 72 hours

Local Area Snow Depth

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GRASS RANGE, MT 59032
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
GRASS RANGE, MT 59032
Infrared Weather Satellite
GRASS RANGE, MT 59032
NEXRAD Weather Radar
GRASS RANGE, MT 59032

LEWISTOWN, MT 3 hourly weather forecast

weather forecast created  5:00 AM PDT  5/21/2026
Thursday
21 MAY 2026
GRASS RANGE, MT 59032 weather forecast Day 1, 12 hours 12 PM 48° 43° Mostly Cloudy 24%
RAIN
<.01 in
0% Thunder
( 15% severe)
NW   12 60% 35°
High 53° GRASS RANGE, MT 59032 weather forecast Day 1, 15 hours 3 PM 51° 47° Mostly Cloudy NW   12 54% 35°
Mostly Cloudy

Chance of Rain

GRASS RANGE, MT 59032 weather forecast Day 1, 18 hours 6 PM 52° 48° Partly Cloudy 4%

0% Thunder
( 6% severe)
NW   12 52% 35°
GRASS RANGE, MT 59032 weather forecast Day 1, 21 hours 9 PM 46° 44° Partly Cloudy WNW   5 71% 37°
Friday
22 MAY 2026
GRASS RANGE, MT 59032 weather forecast Day 2, 0 hours 12 AM 40° 37° Partly Cloudy 1%

0% Thunder
( 0% severe)
WSW   5 79% 34°
Low 33° GRASS RANGE, MT 59032 weather forecast Day 2, 3 hours 3 AM 37° 33° Partly Cloudy SSW   5 85% 33°
High 64° GRASS RANGE, MT 59032 weather forecast Day 2, 6 hours 6 AM 36° 33° Partly Cloudy 0%

0% Thunder
( 1% severe)
S   3 85% 32°

Partly Cloudy



GRASS RANGE, MT 59032 weather forecast Day 2, 9 hours 9 AM 52° 52° Partly Cloudy W   1 54% 36°
GRASS RANGE, MT 59032 weather forecast Day 2, 12 hours 12 PM 59° 60° Clear 3%

0% Thunder
( 8% severe)
NW   2 36% 32°
GRASS RANGE, MT 59032 weather forecast Day 2, 15 hours 3 PM 63° 64° Partly Cloudy NW   3 30% 31°
GRASS RANGE, MT 59032 weather forecast Day 2, 18 hours 6 PM 63° 64° Partly Cloudy 0%

0% Thunder
( 5% severe)
NNW   3 31% 32°
GRASS RANGE, MT 59032 weather forecast Day 2, 21 hours 9 PM 53° 53° Mostly Cloudy SE   2 50% 35°
Saturday
23 MAY 2026
GRASS RANGE, MT 59032 weather forecast Day 3, 0 hours 12 AM 46° 43° Mostly Cloudy 0%

0% Thunder
( 1% severe)
SSE   6 60% 33°
Low 38° GRASS RANGE, MT 59032 weather forecast Day 3, 3 hours 3 AM 43° 39° Partly Cloudy SSE   6 68% 33°
High 72° GRASS RANGE, MT 59032 weather forecast Day 3, 6 hours 6 AM 42° 38° Partly Cloudy 0%

0% Thunder
( 1% severe)
S   6 67% 32°

Partly Cloudy



GRASS RANGE, MT 59032 weather forecast Day 3, 9 hours 9 AM 59° 60° Clear WSW   2 44% 37°
GRASS RANGE, MT 59032 weather forecast Day 3, 15 hours 12 PM 67° 67° Clear 1%

0% Thunder
( 14% severe)
W   5 31% 35°
GRASS RANGE, MT 59032 weather forecast Day 3, 18 hours 3 PM 70° 70° Partly Cloudy W   5 28% 35°
GRASS RANGE, MT 59032 weather forecast Day 3, 21 hours 6 PM 71° 71° Partly Cloudy     WNW   5 28% 36°

LEWISTOWN, MT extended weather forecast

Sunday
24 MAY 2026
Monday
25 MAY 2026
Tuesday
26 MAY 2026
Wednesday
27 MAY 2026
Thursday
28 MAY 2026
Low 45° Low 45° Low 47° Low 44° Low 39°
High 78° High 84° High 75° High 61° High 65°
GRASS RANGE, MT 59032 weather forecast Day 4 GRASS RANGE, MT 59032 weather forecast Day 5 GRASS RANGE, MT 59032 weather forecast Day 6 GRASS RANGE, MT 59032 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Clear
4% Rain
Partly Cloudy
11% Rain
Overcast
46% Rain
Overcast
54% Rain
Overcast
35% Rain
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