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

OLD FAITHFUL RANGER STATION (OFAW4)

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

NA

77°F

25°C

Humidity 24%
Wind Speed WSW 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Heat Index77°F (25°C)
Last update 12 Jul 05:15 PM MDT
Extended Forecast for

Lewis Lake WY

  • Tonight

    Tonight: Mostly clear, with a low around 42. West wind 5 to 8 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. West wind around 6 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 76. Calm wind becoming west southwest 5 to 7 mph in the morning.

    High: 76 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46. West wind around 6 mph becoming light and variable.

    Low: 46 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 74. East wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    High: 74 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 43. West northwest wind around 7 mph becoming east northeast after midnight.

    Low: 43 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 70.

    High: 70 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 42. West wind 5 to 8 mph becoming calm in the evening.
Sunday
Sunny, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 48. West wind around 6 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 76. Calm wind becoming west southwest 5 to 7 mph in the morning.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46. West wind around 6 mph becoming light and variable.
Tuesday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 74. East wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 43. West northwest wind around 7 mph becoming east northeast after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 43.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewis Lake WY
 44.28°N 110.61°W (Elev. 8107 ft)
Last Update:
5:43 pm MDT Jul 12, 2025
Forecast Valid:
5pm MDT Jul 12, 2025-6pm MDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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