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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 MST Dec 23, 2025

Overnight Rain/Snow	Tuesday Chance Rain/Snow and Breezy	Tuesday Night Decreasing Clouds	Wednesday Chance Rain/Snow then Rain/Snow	Wednesday Night Rain/Snow	Christmas Day Rain/Snow then Snow Showers Likely	Thursday Night Snow Showers	Friday Snow Showers	Friday Night Snow Showers Likely
Lo 31 °F	Hi 41 °F	Lo 29 °F	Hi 40 °F	Lo 30 °F	Hi 39 °F	Lo 25 °F	Hi 33 °F	Lo 15 °F

Hazardous Weather Outlook

Overnight	Rain and snow showers. Snow level 7700 feet. Low around 31. South southwest wind 10 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of around an inch possible.
Tuesday	A chance of rain and snow showers, mainly before 2pm. Snow level 7600 feet. Mostly cloudy, with a high near 41. Breezy, with a south southwest wind 11 to 16 mph, with gusts as high as 38 mph. Chance of precipitation is 30%.
Tuesday Night	Mostly cloudy, then gradually becoming mostly clear, with a low around 29. Southeast wind 7 to 9 mph, with gusts as high as 28 mph.
Wednesday	Rain likely, possibly mixed with snow showers before 4pm, then rain showers. Snow level rising to 8400 feet in the afternoon. High near 40. South wind 6 to 8 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night	Rain showers before 11pm, then rain, possibly mixed with snow showers. Low around 30. South wind around 6 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Christmas Day	Snow showers, possibly mixed with rain, becoming all snow after 11am. Some thunder is also possible. High near 39. Southwest wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Thursday Night	Snow showers, mainly after 11pm. Some thunder is also possible. Low around 25. South southwest wind around 6 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Friday	Snow showers. Some thunder is also possible. High near 33. Chance of precipitation is 90%.
Friday Night	Snow showers likely. Mostly cloudy, with a low around 15. Chance of precipitation is 70%.
Saturday	A 50 percent chance of snow showers. Mostly cloudy, with a high near 26.
Saturday Night	Mostly cloudy, with a low around 4.
Sunday	Partly sunny, with a high near 30.
Sunday Night	Partly cloudy, with a low around 8.
Monday	Mostly sunny, with a high near 35.

Forecast from NOAA-NWS for Old Faithful WY.

Forecast Discussion from: NOAA-NWS

Script developed by: El Dorado Weather

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