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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: 12:31 am MDT Aug 24, 2026

Overnight Partly Cloudy	Monday Mostly Sunny	Monday Night Chance Showers then Mostly Cloudy	Tuesday Sunny then Slight Chance T-storms	Tuesday Night Mostly Cloudy	Wednesday Mostly Sunny	Wednesday Night Mostly Cloudy	Thursday Mostly Sunny then Chance T-storms	Thursday Night Slight Chance T-storms then Mostly Cloudy
Lo 41 °F	Hi 75 °F	Lo 41 °F	Hi 75 °F	Lo 41 °F	Hi 77 °F	Lo 41 °F	Hi 76 °F	Lo 41 °F

Overnight	Partly cloudy, with a low around 41. South wind around 5 mph.
Monday	Mostly sunny, with a high near 75. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Monday Night	A slight chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and 10pm. Increasing clouds, with a low around 41. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday	A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 75. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night	Mostly cloudy, with a low around 41. Light and variable wind.
Wednesday	Mostly sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night	Mostly cloudy, with a low around 41. Light and variable wind.
Thursday	A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Thursday Night	A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 41.
Friday	A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.
Friday Night	A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 40.
Saturday	A chance of showers and thunderstorms. Mostly sunny, with a high near 70.
Saturday Night	A chance of showers. Partly cloudy, with a low around 37.
Sunday	A slight chance of showers and thunderstorms. Sunny, with a high near 67.

Forecast from NOAA-NWS for Old Faithful WY.

Forecast Discussion from: NOAA-NWS

Script developed by: El Dorado Weather

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