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NWS Forecast for Old Faithful WY

National Weather Service Forecast for: Old Faithful WY
Issued by: National Weather Service Riverton, WY

Updated: 10:02 am MDT Jun 23, 2026

Today Sunny	Tonight Mostly Clear then Slight Chance Showers	Wednesday Partly Sunny then Chance T-storms	Wednesday Night Chance Showers then Partly Cloudy	Thursday Chance Showers then Showers	Thursday Night Slight Chance T-storms then Partly Cloudy	Friday Partly Sunny then Slight Chance T-storms	Friday Night Chance Showers	Saturday Showers
Hi 74 °F	Lo 38 °F	Hi 75 °F	Lo 38 °F	Hi 69 °F	Lo 38 °F	Hi 72 °F	Lo 38 °F	Hi 55 °F

Today	Sunny, with a high near 74. Light west wind increasing to 5 to 9 mph in the afternoon.
Tonight	A 20 percent chance of showers after 5am. Increasing clouds, with a low around 38. West northwest wind 5 to 8 mph becoming light and variable.
Wednesday	A 30 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. Calm wind becoming west northwest around 6 mph.
Wednesday Night	A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 38. Light and variable wind. Chance of precipitation is 30%.
Thursday	A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon. High near 69. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night	A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 38. Light and variable wind.
Friday	A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 29 mph.
Friday Night	A chance of showers and thunderstorms. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.
Saturday	Showers and possibly a thunderstorm. High near 55. Chance of precipitation is 90%.
Saturday Night	Rain showers before 3am, then rain and snow showers likely. Some thunder is also possible. Low around 30. Chance of precipitation is 90%.
Sunday	Rain and snow showers. Some thunder is also possible. Snow level 8300 feet. Mostly cloudy, with a high near 47.
Sunday Night	Rain and snow showers likely. Some thunder is also possible. Snow level 8800 feet lowering to 8200 feet after midnight . Mostly cloudy, with a low around 28.
Monday	A chance of rain and snow showers. Some thunder is also possible. Snow level 8100 feet rising to 9400 feet in the afternoon. Mostly sunny, with a high near 51.

Forecast from NOAA-NWS for Old Faithful WY.

Forecast Discussion from: NOAA-NWS

Script developed by: El Dorado Weather

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