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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Yellowstone Lake (KP60)

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

NA

37°F

3°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 37°F (3°C)
Visibility NA
Last update 20 Sep 07:56 AM MDT
Extended Forecast for

3 Miles S Lake WY

  • Today

    Today: A slight chance of showers between 2pm and 3pm, then a slight chance of showers and thunderstorms after 3pm. Areas of fog before noon. Otherwise, partly sunny, with a high near 54. Calm wind. Chance of precipitation is 10%.

    High: 54 °F

    Areas Fog
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 60. Calm wind.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 60 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers between 2pm and 3pm, then a slight chance of showers and thunderstorms after 3pm. Areas of fog before noon. Otherwise, partly sunny, with a high near 54. Calm wind. Chance of precipitation is 10%.
Tonight
Partly cloudy, with a low around 36. Calm wind.
Monday
Sunny, with a high near 60. Calm wind.
Monday Night
Mostly clear, with a low around 38. Calm wind.
Tuesday
Mostly sunny, with a high near 62. Calm wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 41. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60. Calm wind becoming west southwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 42.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Lake WY
 44.51°N 110.4°W (Elev. 7730 ft)
Last Update:
6:47 am MDT Sep 20, 2026
Forecast Valid:
8am MDT Sep 20, 2026-6pm MDT Sep 26, 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