Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

OLD FAITHFUL RANGER STATION (OFAW4)

Lat: 44.456667°NLon: 110.849444°WElev: 7332.0ft.

NA

53°F

12°C

Humidity 100%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 23 Aug 01:15 AM MDT
Extended Forecast for

Lewis Lake WY

  • Overnight

    Overnight: Mostly cloudy, with a low around 46. Light south southwest wind.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 73. Light south southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 24 mph.

    High: 73 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 9pm.  Partly cloudy, with a low around 42. South southwest wind 5 to 9 mph, with gusts as high as 23 mph.

    Low: 42 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 72. West southwest wind 3 to 7 mph. Winds could gust as high as 20 mph.

    High: 72 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 73. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 73 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Light and variable wind.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 46. Light south southwest wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 73. Light south southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 24 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 42. South southwest wind 5 to 9 mph, with gusts as high as 23 mph.
Monday
Mostly sunny, with a high near 72. West southwest wind 3 to 7 mph. Winds could gust as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 42. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 42. Light and variable wind.
Wednesday
A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74.
Wednesday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 42.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 41.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 40.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewis Lake WY
 44.3°N 110.64°W (Elev. 7779 ft)
1:01 am MDT Aug 23, 2026
2am MDT Aug 23, 2026-6pm MDT Aug 29, 2026
 
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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