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Yellowstone National Park, CA Weather Forecast
Wx Discussion - Wx Hazards - Wx Aviation
NWS Forecast for Old Faithful WY
National Weather Service Forecast for: Old Faithful WY
Issued by: National Weather Service Riverton, WY
Updated: 6:18 am MDT May 9, 2026
 
Today

Today: A 20 percent chance of showers after 1pm. Snow level rising to 8900 feet in the afternoon. Mostly sunny, with a high near 56. West northwest wind 6 to 9 mph.
Sunny then
Slight Chance
Showers
 Tonight

Tonight: Mostly clear, with a low around 31. Northwest wind 5 to 7 mph becoming calm in the evening.
Mostly Clear

 Sunday

Sunday: Sunny, with a high near 66. Calm wind becoming west southwest around 6 mph in the afternoon.
Sunny

 Sunday
Night
Sunday Night: Mostly clear, with a low around 39. Light south wind.
Mostly Clear

 Monday

Monday: Sunny, with a high near 71. Southwest wind 3 to 8 mph. Winds could gust as high as 23 mph.
Sunny

 Monday
Night
Monday Night: Partly cloudy, with a low around 39. Light and variable wind. Winds could gust as high as 20 mph.
Partly Cloudy

 Tuesday

Tuesday: Sunny, with a high near 74. Light and variable wind.
Sunny

 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 42.
Partly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 73.
Mostly Sunny
Hi 56 °F Lo 31 °F Hi 66 °F Lo 39 °F Hi 71 °F Lo 39 °F Hi 74 °F Lo 42 °F Hi 73 °F

 

Today
 
 A 20 percent chance of showers after 1pm. Snow level rising to 8900 feet in the afternoon. Mostly sunny, with a high near 56. West northwest wind 6 to 9 mph.
Tonight
 
 Mostly clear, with a low around 31. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
 
 Sunny, with a high near 66. Calm wind becoming west southwest around 6 mph in the afternoon.
Sunday Night
 
 Mostly clear, with a low around 39. Light south wind.
Monday
 
 Sunny, with a high near 71. Southwest wind 3 to 8 mph. Winds could gust as high as 23 mph.
Monday Night
 
 Partly cloudy, with a low around 39. Light and variable wind. Winds could gust as high as 20 mph.
Tuesday
 
 Sunny, with a high near 74. Light and variable wind.
Tuesday Night
 
 Partly cloudy, with a low around 42.
Wednesday
 
 Mostly sunny, with a high near 73.
Wednesday Night
 
 A slight chance of rain showers before 3am, then a slight chance of rain and snow showers. Some thunder is also possible. Partly cloudy, with a low around 39. Chance of precipitation is 20%.
Thursday
 
 A slight chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 66.
Thursday Night
 
 Mostly clear, with a low around 37.
Friday
 
 A slight chance of showers and thunderstorms. Sunny, with a high near 66.

 

Forecast from NOAA-NWS for Old Faithful WY.

Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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