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

PLAINS (PLAM8)

Lat: 47.46622°NLon: 114.87961°WElev: 2481.0ft.

NA

62°F

17°C

Humidity 60%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 03 Oct 02:26 PM MDT
Extended Forecast for

Plains MT

  • Tonight

    Tonight: Increasing clouds, with a low around 40. West northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 40 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 50 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 63. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 63 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 37. West northwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Chance Rain
    then Rain
    Likely

  • Sunday

    Sunday: A 30 percent chance of rain before noon. Partly sunny, with a high near 58. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 58 °F

    Chance Rain
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 5am. Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 29. Light and variable wind.

    Low: 29 °F

    Mostly Clear
    then Frost
    and Patchy
    Fog

  • Monday

    Monday: Patchy fog before 10am. Widespread frost before 10am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Frost and
    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Widespread frost, mainly after 3am. Otherwise, clear, with a low around 30.

    Low: 30 °F

    Clear then
    Frost

  • Tuesday

    Tuesday: Widespread frost before 10am. Otherwise, sunny, with a high near 72.

    High: 72 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: Widespread frost, mainly after 4am. Otherwise, clear, with a low around 34.

    Low: 34 °F

    Clear then
    Frost

Detailed Forecast

Tonight
Increasing clouds, with a low around 40. West northwest wind 5 to 7 mph becoming calm after midnight.
Saturday
A 50 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 63. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Saturday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 37. West northwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A 30 percent chance of rain before noon. Partly sunny, with a high near 58. Calm wind becoming northeast around 6 mph in the afternoon.
Sunday Night
Patchy fog after 5am. Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 29. Light and variable wind.
Monday
Patchy fog before 10am. Widespread frost before 10am. Otherwise, sunny, with a high near 66.
Monday Night
Widespread frost, mainly after 3am. Otherwise, clear, with a low around 30.
Tuesday
Widespread frost before 10am. Otherwise, sunny, with a high near 72.
Tuesday Night
Widespread frost, mainly after 4am. Otherwise, clear, with a low around 34.
Wednesday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 73.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 37.
Thursday
A slight chance of rain. Mostly sunny, with a high near 71.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 35.
Friday
A slight chance of rain. Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plains MT
 47.44°N 114.87°W (Elev. 2506 ft)
Last Update:
2:31 pm MDT Oct 3, 2025
Forecast Valid:
3pm MDT Oct 3, 2025-6pm MDT Oct 10, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation