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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: 1:47 am MST Nov 25, 2025
 
Overnight

Overnight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 2. Wind chill values as low as -5. West wind 3 to 6 mph.
Patchy Fog

 Tuesday

Tuesday: Patchy fog before 9am. Otherwise, sunny, with a high near 27. Wind chill values as low as -5. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Patchy Fog
then Mostly
Sunny
 Tuesday
Night
Tuesday Night: Snow showers likely, mainly after 11pm. Mostly cloudy, with a low around 15. Southwest wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Snow Showers
Likely
 Wednesday

Wednesday: Snow showers, mainly before 11am. High near 32. Southwest wind around 7 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Snow Showers
then Chance
Snow Showers
 Wednesday
Night
Wednesday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 19. Southwest wind 3 to 5 mph. New snow accumulation of less than a half inch possible.
Chance Snow
Showers
 Thanksgiving
Day
Thanksgiving Day: Snow showers likely, mainly before 11am. Partly sunny, with a high near 38. Southwest wind around 6 mph. Chance of precipitation is 60%.
Snow Showers
Likely
 Thursday
Night
Thursday Night: A 30 percent chance of snow showers. Mostly cloudy, with a low around 20. Southwest wind 3 to 6 mph.
Chance Snow
Showers
 Friday

Friday: Snow showers. High near 33. Chance of precipitation is 80%.
Snow Showers

 Friday
Night
Friday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 10.
Chance Snow
Showers
Lo 2 °F Hi 27 °F Lo 15 °F Hi 32 °F Lo 19 °F Hi 38 °F Lo 20 °F Hi 33 °F Lo 10 °F

Hazardous Weather Outlook
 

Overnight
 
 Patchy fog after 4am. Otherwise, mostly clear, with a low around 2. Wind chill values as low as -5. West wind 3 to 6 mph.
Tuesday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 27. Wind chill values as low as -5. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Tuesday Night
 
 Snow showers likely, mainly after 11pm. Mostly cloudy, with a low around 15. Southwest wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
 
 Snow showers, mainly before 11am. High near 32. Southwest wind around 7 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
 
 A 40 percent chance of snow showers. Mostly cloudy, with a low around 19. Southwest wind 3 to 5 mph. New snow accumulation of less than a half inch possible.
Thanksgiving Day
 
 Snow showers likely, mainly before 11am. Partly sunny, with a high near 38. Southwest wind around 6 mph. Chance of precipitation is 60%.
Thursday Night
 
 A 30 percent chance of snow showers. Mostly cloudy, with a low around 20. Southwest wind 3 to 6 mph.
Friday
 
 Snow showers. High near 33. Chance of precipitation is 80%.
Friday Night
 
 A 50 percent chance of snow showers. Mostly cloudy, with a low around 10.
Saturday
 
 Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 27. Chance of precipitation is 60%.
Saturday Night
 
 A chance of snow showers. Mostly cloudy, with a low around 2.
Sunday
 
 A chance of snow showers. Mostly sunny, with a high near 20.
Sunday Night
 
 A slight chance of snow showers. Mostly cloudy, with a low around -3.
Monday
 
 A slight chance of snow showers. Partly sunny, with a high near 24.

 

Forecast from NOAA-NWS for Old Faithful WY.

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






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