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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Yellowstone Lake (KP60)

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

NA

30°F

-1°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 25°F (-4°C)
Visibility NA
Last update 17 Oct 10:56 PM MDT
Extended Forecast for

West Thumb WY

  • Tonight

    Tonight: Widespread frost before midnight, then widespread frost after 1am. Otherwise, partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 10am. Otherwise, mostly sunny, with a high near 54. Calm wind becoming southwest around 5 mph.

    High: 54 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54. Light south southwest wind.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon. Snow level 9000 feet rising to 10300 feet in the afternoon. Partly sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread frost before midnight, then widespread frost after 1am. Otherwise, partly cloudy, with a low around 26. Calm wind.
Sunday
Widespread frost before 10am. Otherwise, mostly sunny, with a high near 54. Calm wind becoming southwest around 5 mph.
Sunday Night
Mostly clear, with a low around 25. Calm wind.
Monday
Sunny, with a high near 54. Light south southwest wind.
Monday Night
Partly cloudy, with a low around 28. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Snow level 9000 feet rising to 10300 feet in the afternoon. Partly sunny, with a high near 53. Light and variable wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 29. Calm wind.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 55.
Thursday Night
Showers likely. Mostly cloudy, with a low around 31.
Friday
Rain and snow showers. Mostly cloudy, with a high near 45.
Friday Night
Rain and snow showers. Snow level 9000 feet lowering to 8200 feet after midnight . Mostly cloudy, with a low around 27.
Saturday
A chance of snow showers. Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Thumb WY
 44.43°N 110.6°W (Elev. 8228 ft)
Last Update:
10:32 pm MDT Oct 17, 2026
Forecast Valid:
11pm MDT Oct 17, 2026-6pm MDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation