Current Weather Forecast for Sweet Grass

MT 59484  |   1:24pm

Weather Conditions

50°

Feels Like 47°

Cloudy

28° 54°

4

UV Index

Good

Air Quality

S 7 mph

Wind

0 in

rain

Today

Mon 5/18

54°

Highest Temperature

16%

Sunshine and clouds mixed. High 54F. Winds SSE at 5 to 10 mph.

Tonight

Mon 5/18

32°

Lowest Temperature

24%

Cloudy skies early, followed by partial clearing. Low 32F. Winds SSW at 10 to 15 mph.

Tomorrow

Tue 5/19

62°

Highest Temperature

37%

Partly cloudy with afternoon showers or thunderstorms. High 62F. Winds W at 10 to 15 mph. Chance of rain 40%.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Sweet Grass

Hourly Weather Forecast & Temperature

2PM

6%

51°

Feels Like 48°

Mostly Cloudy

SE 7 mph

Wind

1019 mb

Pressure

39%

Humidity

4

UV Index

10mi

Visibility

77%

Cloud Cover

3PM

1%

52°

Feels Like 50°

Mostly Cloudy

SE 8 mph

Wind

1018 mb

Pressure

36%

Humidity

3

UV Index

10mi

Visibility

77%

Cloud Cover

4PM

1%

53°

Feels Like 51°

Mostly Cloudy

SSE 8 mph

Wind

1017 mb

Pressure

35%

Humidity

3

UV Index

10mi

Visibility

74%

Cloud Cover

5PM

2%

54°

Feels Like 51°

Partly Cloudy

S 8 mph

Wind

1017 mb

Pressure

35%

Humidity

2

UV Index

10mi

Visibility

52%

Cloud Cover

6PM

16%

53°

Feels Like 50°

Cloudy

S 9 mph

Wind

1016 mb

Pressure

37%

Humidity

1

UV Index

10mi

Visibility

80%

Cloud Cover

7PM

24%

52°

Feels Like 49°

Cloudy

SSW 9 mph

Wind

1017 mb

Pressure

40%

Humidity

0

UV Index

10mi

Visibility

87%

Cloud Cover

8PM

15%

49°

Feels Like 46°

Cloudy

SSW 8 mph

Wind

1018 mb

Pressure

47%

Humidity

0

UV Index

10mi

Visibility

89%

Cloud Cover

9PM

24%

46°

Feels Like 40°

Cloudy

SSW 11 mph

Wind

1018 mb

Pressure

57%

Humidity

0

UV Index

10mi

Visibility

81%

Cloud Cover

10PM

10%

43°

Feels Like 38°

Mostly Cloudy

SSW 9 mph

Wind

1019 mb

Pressure

63%

Humidity

0

UV Index

10mi

Visibility

73%

Cloud Cover

11PM

3%

41°

Feels Like 35°

Mostly Cloudy

S 10 mph

Wind

1019 mb

Pressure

66%

Humidity

0

UV Index

10mi

Visibility

67%

Cloud Cover

12AM

2%

39°

Feels Like 33°

Partly Cloudy

SSW 10 mph

Wind

1019 mb

Pressure

70%

Humidity

0

UV Index

10mi

Visibility

59%

Cloud Cover

1AM

3%

37°

Feels Like 31°

Partly Cloudy

SSW 9 mph

Wind

1019 mb

Pressure

75%

Humidity

0

UV Index

10mi

Visibility

36%

Cloud Cover

Mon 5/18

Mon

16%

28°

54°

Times of sun and clouds. Highs in the mid 50s and lows in the low 30s.

47°

Feels Like

SSE 9 mph

Wind

38%

Humidity

5

UV Index

5:41 AM

Sunrise

9:07 PM

Sunset

Tue 5/19

Tue

37%

32°

62°

Thunderstorms developing in the afternoon. Highs in the low 60s and lows in the upper 30s.

30°

Feels Like

W 12 mph

Wind

45%

Humidity

4

UV Index

5:40 AM

Sunrise

9:09 PM

Sunset

Wed 5/20

Wed

32%

37°

52°

Morning showers. Highs in the low 50s and lows in the mid 30s.

34°

Feels Like

NNW 15 mph

Wind

65%

Humidity

4

UV Index

5:39 AM

Sunrise

9:10 PM

Sunset

Thu 5/21

Thu

8%

35°

62°

Partly cloudy. Highs in the low 60s and lows in the upper 30s.

32°

Feels Like

NW 14 mph

Wind

50%

Humidity

6

UV Index

5:38 AM

Sunrise

9:11 PM

Sunset

Fri 5/22

Fri

2%

37°

69°

Times of sun and clouds. Highs in the upper 60s and lows in the low 40s.

69°

Feels Like

WSW 11 mph

Wind

37%

Humidity

6

UV Index

5:37 AM

Sunrise

9:13 PM

Sunset

Sat 5/23

Sat

6%

41°

72°

Partly cloudy. Highs in the low 70s and lows in the mid 40s.

72°

Feels Like

W 16 mph

Wind

34%

Humidity

6

UV Index

5:36 AM

Sunrise

9:14 PM

Sunset

Sun 5/24

Sun

2%

44°

76°

Partly cloudy. Highs in the mid 70s and lows in the upper 40s.

76°

Feels Like

WSW 18 mph

Wind

34%

Humidity

6

UV Index

5:35 AM

Sunrise

9:15 PM

Sunset

Mon 5/25

Mon

24%

42°

68°

Times of sun and clouds. Highs in the upper 60s and lows in the upper 30s.

68°

Feels Like

W 20 mph

Wind

39%

Humidity

6

UV Index

5:34 AM

Sunrise

9:16 PM

Sunset

Need to see beyond 12 Hours?

Find more forecast on the FREE FOX WEATHER App

GO TO APP STORE

Looking for homes in this area?

• 64 1st Ave, Sweet Grass, MT 59484
• 321 Francis Ave, Sweet Grass, MT 59484
• 546 Wolf Ave, Sweet Grass, MT 59484

Sponsored by Redfin. Housing data supplied by Redfin independent of FOX Weather.

Latest Stories from Montana

These popular national parks announce plans for 2026 visitor reservations

A group of fan-favorite national parks in the West have announced their plans for how people can visit them this summer during peak season.

You could see the Northern Lights in these states due to a geomagnetic storm

A fast stream of solar wind from a colossal coronal hole in the sun’s atmosphere could spark a geomagnetic storm, bringing with them the potential to see the Northern Lights. NOAA issued a Geomagnetic Storm Watch for Thursday and Friday, warning that the strongest geomagnetic activity is expected between 11 p.m. and 2 a.m. EST.

Missing hiker found dead in Glacier National Park after suspected bear attack

The body of a missing hiker was found in Glacier National Park after a suspected bear attack.

Winter Weather Alerts issued for parts of Rockies, Northern Plains as late-week snow, sharp cooldown grip area

While millions from Texas to the Midwest find themselves under a renewed risk of severe storms Friday, the cooler side of this sprawling low pressure system will fuel spring snow across the Rockies and Northern Plains.

Load More Stories