Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

OLD FAITHFUL RANGER STATION (OFAW4)

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

NA

59°F

15°C

Humidity 24%
Wind Speed SW 12 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 20 Mar 01:15 PM MDT
Extended Forecast for

5 Miles SSW Lewis Lake WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 53. Southwest wind 7 to 11 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 32. South southwest wind 5 to 8 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 54. West southwest wind 6 to 11 mph, with gusts as high as 25 mph.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain showers before 3am, then a slight chance of snow showers.  Snow level 9800 feet lowering to 8200 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 26. West southwest wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 26 °F

    Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: Sunny, with a high near 43. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 43 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24. West southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 46. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 46 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 53. Southwest wind 7 to 11 mph.
Tonight
Mostly clear, with a low around 32. South southwest wind 5 to 8 mph.
Saturday
Mostly sunny, with a high near 54. West southwest wind 6 to 11 mph, with gusts as high as 25 mph.
Saturday Night
A chance of rain showers before 3am, then a slight chance of snow showers. Snow level 9800 feet lowering to 8200 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 26. West southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday
Sunny, with a high near 43. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 24. West southwest wind 5 to 7 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 46. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 52.
Wednesday Night
A slight chance of rain and snow showers. Snow level 9400 feet lowering to 8200 feet after midnight . Mostly cloudy, with a low around 26.
Thursday
A slight chance of snow showers. Mostly sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Lewis Lake WY
 44.23°N 110.66°W (Elev. 8150 ft)
1:02 pm MDT Mar 20, 2026
1pm MDT Mar 20, 2026-6pm MDT Mar 26, 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