National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

GREENFIELDS (GFMT)

Lat: 47.65833°NLon: 111.8125°WElev: 3820.0ft.

NA

31°F

-1°C

Humidity 93%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 19 Oct 02:00 AM MDT
Extended Forecast for

Sun River MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 71. Calm wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. South wind around 5 mph becoming calm.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. West northwest wind around 6 mph becoming north northeast in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. Light and variable wind.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. South wind 3 to 6 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 71. South wind 3 to 6 mph.

    High: 71 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 36. Calm wind.
Monday
Sunny, with a high near 71. Calm wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Partly cloudy, with a low around 39. South wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 57. West northwest wind around 6 mph becoming north northeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 36. Light and variable wind.
Wednesday
Sunny, with a high near 70. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 42. South wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 71. South wind 3 to 6 mph.
Thursday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 44.
Friday
Rain likely, mainly before noon. Cloudy, with a high near 51. Breezy.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
A slight chance of rain and snow. Partly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sun River MT
 47.54°N 111.72°W (Elev. 3540 ft)
Last Update:
12:31 am MDT Oct 19, 2026
Forecast Valid:
3am MDT Oct 19, 2026-6pm MDT Oct 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation