Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Yellowstone Lake (KP60)

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

NA

50°F

10°C

Humidity 74%
Wind Speed N 0 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 19 Aug 09:56 PM MDT
Extended Forecast for

Lake WY

  • Tonight

    Tonight: Patchy smoke between 2am and 5am. Mostly clear, with a low around 40. West wind around 5 mph becoming calm  in the evening.

    Low: 40 °F

    Mostly Clear
    then Patchy
    Smoke

  • Thursday

    Thursday: Sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45. West wind 5 to 8 mph becoming calm.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 73. Calm wind becoming south southwest around 5 mph.  Chance of precipitation is 60%.

    High: 73 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 44. Light south wind.

    Low: 44 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Patchy smoke between 2am and 5am. Mostly clear, with a low around 40. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 45. West wind 5 to 8 mph becoming calm.
Friday
Mostly sunny, with a high near 81. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 46. Calm wind.
Saturday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44. Light south wind.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70.
Sunday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 41.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 70.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 41.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lake WY
 44.55°N 110.41°W (Elev. 7910 ft)
9:31 pm MDT Aug 19, 2026
10pm MDT Aug 19, 2026-6pm MDT Aug 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database