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

Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Current conditions at

PLAINS (PLAM8)

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

NA

80°F

27°C

Humidity 32%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index79°F (26°C)
Last update 18 Aug 02:26 PM MDT
Extended Forecast for

Plains MT

  • This Afternoon

    This Afternoon: A 20 percent chance of rain before 3pm. Mostly sunny, with a high near 90. West wind around 8 mph.

    High: 90 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly clear, with a low around 51. West wind 5 to 8 mph becoming calm after midnight.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Light southwest wind.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Calm wind.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Friday Night

    Friday Night: A slight chance of rain after midnight. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A slight chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 90.

    High: 90 °F

    Slight Chance
    Rain then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of rain before 3pm. Mostly sunny, with a high near 90. West wind around 8 mph.
Tonight
Mostly clear, with a low around 51. West wind 5 to 8 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 50. Light southwest wind.
Thursday
Sunny and hot, with a high near 97. Calm wind.
Thursday Night
Mostly clear, with a low around 55.
Friday
Mostly sunny and hot, with a high near 96.
Friday Night
A slight chance of rain after midnight. Mostly cloudy, with a low around 57.
Saturday
A slight chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 90.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plains MT
 47.47°N 114.87°W (Elev. 2933 ft)
Last Update:
2:00 pm MDT Aug 18, 2026
Forecast Valid:
2pm MDT Aug 18, 2026-6pm MDT Aug 24, 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