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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

GREENFIELDS (GFMT)

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

NA

58°F

14°C

Humidity 63%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 28 Aug 08:00 AM MDT
Extended Forecast for

Fort Shaw MT

  • Today

    Today: A 20 percent chance of showers after 3pm. Patchy smoke. Partly sunny, with a high near 85. Light and variable wind becoming west southwest 10 to 15 mph in the morning. Winds could gust as high as 23 mph.

    High: 85 °F

    Patchy Smoke
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before midnight, then a slight chance of showers after 3am. Patchy smoke. Mostly cloudy, with a low around 55. West wind 5 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after noon. Patchy smoke before noon. Mostly cloudy, with a high near 77. South southwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 49. South southeast wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: Showers likely before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 68. Breezy, with a west wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely then
    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. Breezy, with a southwest wind 14 to 19 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 39 mph.

    Low: 44 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Sunny, with a high near 77. Southwest wind 7 to 15 mph, with gusts as high as 21 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. West southwest wind 5 to 9 mph becoming light and variable after midnight.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers after 3pm. Patchy smoke. Partly sunny, with a high near 85. Light and variable wind becoming west southwest 10 to 15 mph in the morning. Winds could gust as high as 23 mph.
Tonight
A slight chance of showers before midnight, then a slight chance of showers after 3am. Patchy smoke. Mostly cloudy, with a low around 55. West wind 5 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Saturday
A chance of showers, with thunderstorms also possible after noon. Patchy smoke before noon. Mostly cloudy, with a high near 77. South southwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
Saturday Night
Showers and possibly a thunderstorm. Low around 49. South southeast wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 80%.
Sunday
Showers likely before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 68. Breezy, with a west wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 44. Breezy, with a southwest wind 14 to 19 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 39 mph.
Monday
Sunny, with a high near 77. Southwest wind 7 to 15 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 47. West southwest wind 5 to 9 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 77.
Wednesday Night
Mostly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Shaw MT
 47.49°N 111.81°W (Elev. 3599 ft)
Last Update:
3:56 am MDT Aug 28, 2026
Forecast Valid:
9am MDT Aug 28, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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