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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

Yellowstone Lake (KP60)

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

NA

62°F

17°C

Humidity 39%
Wind Speed N 0 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 37°F (3°C)
Visibility NA
Last update 16 Sep 06:56 PM MDT
Extended Forecast for

West Thumb WY

  • Tonight

    Tonight: Increasing clouds, with a low around 40. South wind around 6 mph becoming calm in the evening.

    Low: 40 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 66. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers
    Likely then
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely after 3am. Partly cloudy, with a low around 37. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 37 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 64. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 34. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 34 °F

    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after noon. High near 57. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 57 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 30. Light west southwest wind. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 62. Chance of precipitation is 20%.

    High: 62 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 40. South wind around 6 mph becoming calm in the evening.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 66. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers likely after 3am. Partly cloudy, with a low around 37. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Friday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 64. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm. Low around 34. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely, then showers and possibly a thunderstorm after noon. High near 57. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 80%.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 30. Light west southwest wind. Chance of precipitation is 30%.
Sunday
A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 62. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 32.
Wednesday
Sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Thumb WY
 44.41°N 110.57°W (Elev. 7776 ft)
Last Update:
7:17 pm MDT Sep 16, 2026
Forecast Valid:
7pm MDT Sep 16, 2026-6pm MDT Sep 23, 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