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

Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Yellowstone Lake (KP60)

Lat: 44.54444°NLon: 110.42111°WElev: 7835.0ft.

NA

51°F

11°C

Humidity 92%
Wind Speed NA 3 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 17 Aug 08:56 PM MDT
Extended Forecast for

8 Miles ESE West Thumb WY

  • Tonight

    Tonight: Isolated showers between 11pm and 1am. Mostly cloudy, with a low around 45. North wind around 5 mph becoming light and variable. Chance of precipitation is 20%.

    Low: 45 °F

    Isolated
    Showers

  • Tuesday

    Tuesday: Scattered showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 68. Breezy, with a south southwest wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 40%.

    High: 68 °F

    Isolated
    Showers then
    Scattered
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms before 10pm, then isolated showers between 10pm and 11pm. Partly cloudy, with a low around 42. West southwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 42 °F

    Scattered
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. West wind 5 to 7 mph becoming light and variable after midnight.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
Isolated showers between 11pm and 1am. Mostly cloudy, with a low around 45. North wind around 5 mph becoming light and variable. Chance of precipitation is 20%.
Tuesday
Scattered showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 68. Breezy, with a south southwest wind 5 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Tuesday Night
Scattered showers and thunderstorms before 10pm, then isolated showers between 10pm and 11pm. Partly cloudy, with a low around 42. West southwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 71. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 44. West wind 5 to 7 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 74. Light and variable wind becoming west around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 48. Light and variable wind.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Saturday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 66.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 44.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ESE West Thumb WY
 44.36°N 110.44°W (Elev. 8599 ft)
Last Update:
9:47 pm MDT Aug 17, 2026
Forecast Valid:
10pm MDT Aug 17, 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