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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 44.46°N 110.82°W (Text-Only)
NWS Forecast for: Old Faithful WY
Issued by: National Weather Service Riverton, WY
Last Update: 6:47 pm MDT Jun 29, 2026		Print

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 32. South wind 5 to 10 mph. Chance of precipitation is 70%.

    Low: 32 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: Areas of frost before 8am. Otherwise, partly sunny, with a high near 60. South southwest wind 6 to 10 mph.

    High: 60 °F

    Areas Frost
    then Mostly
    Sunny

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 32. Southwest wind 5 to 9 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear



  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 22 mph.

    High: 65 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 35. Southwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 21 mph.

    Low: 35 °F

    Partly Cloudy



  • Thursday

    Thursday: Mostly sunny, with a high near 68. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 24 mph.

    High: 68 °F

    Mostly Sunny



  • Thursday
    Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 38. Southwest wind around 5 mph becoming calm after midnight.

    Low: 38 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday
    Night

    Friday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    T-storms then
    Partly Cloudy

    • Tonight: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 32. South wind 5 to 10 mph. Chance of precipitation is 70%.

    Tuesday: Areas of frost before 8am. Otherwise, partly sunny, with a high near 60. South southwest wind 6 to 10 mph.

    Tuesday Night: Mostly clear, with a low around 32. Southwest wind 5 to 9 mph becoming calm in the evening.

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 22 mph.

    Wednesday Night: Partly cloudy, with a low around 35. Southwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 21 mph.

    Thursday: Mostly sunny, with a high near 68. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 24 mph.

    Thursday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 38. Southwest wind around 5 mph becoming calm after midnight.

    Friday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 69.

    Friday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 36.

    Independence Day: Sunny, with a high near 70.

    Saturday Night: Clear, with a low around 38.

    Sunday: Sunny, with a high near 76.

    Sunday Night: Mostly clear, with a low around 42.

    Monday: Sunny, with a high near 79.


    Old Faithful WY
     44.46°N 110.82°W (Elev. 7398 ft)

    Visit your local NWS office at: https://www.weather.gov/riw