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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: 2:32 pm MST Dec 15, 2025
 
This
Afternoon
This Afternoon: Partly sunny, with a steady temperature around 36. South southwest wind around 8 mph.
Partly Sunny

 Tonight

Tonight: Isolated snow showers after 5am. Mostly cloudy, then gradually becoming mostly clear, with a low around 23. South wind 8 to 10 mph. Chance of precipitation is 10%.
Mostly Cloudy
then Isolated
Snow Showers
 Tuesday

Tuesday: Scattered snow showers, mainly after noon. Mostly cloudy, with a high near 37. Breezy, with a southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Scattered
Snow Showers
and Breezy
 Tuesday
Night
Tuesday Night: Snow showers, mainly after 1am. Patchy blowing snow after 3am. Low around 28. Breezy, with a south southwest wind 13 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Snow Showers
and Patchy
Blowing Snow
 Wednesday

Wednesday: Snow showers before 8am, then rain and snow showers between 8am and 11am, then snow showers after 11am. Some thunder is also possible. High near 37. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Breezy.
Rain/Snow
then Snow
Showers
 Wednesday
Night
Wednesday Night: Isolated snow showers before 11pm. Partly cloudy, with a low around 11. West wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Isolated Snow
Showers then
Mostly Cloudy
 Thursday

Thursday: Snow showers, mainly after 11am. High near 31. South southwest wind 5 to 8 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Snow Showers

 Thursday
Night
Thursday Night: Snow showers. Low around 22. Chance of precipitation is 90%.
Snow Showers

 Friday

Friday: Snow showers. High near 36. Chance of precipitation is 90%.
Snow Showers
Hi 36 °F Lo 23 °F Hi 37 °F Lo 28 °F Hi 37 °F Lo 11 °F Hi 31 °F Lo 22 °F Hi 36 °F

Hazardous Weather Outlook
Winter Storm Watch
 

This Afternoon
 
 Partly sunny, with a steady temperature around 36. South southwest wind around 8 mph.
Tonight
 
 Isolated snow showers after 5am. Mostly cloudy, then gradually becoming mostly clear, with a low around 23. South wind 8 to 10 mph. Chance of precipitation is 10%.
Tuesday
 
 Scattered snow showers, mainly after noon. Mostly cloudy, with a high near 37. Breezy, with a southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Tuesday Night
 
 Snow showers, mainly after 1am. Patchy blowing snow after 3am. Low around 28. Breezy, with a south southwest wind 13 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Wednesday
 
 Snow showers before 8am, then rain and snow showers between 8am and 11am, then snow showers after 11am. Some thunder is also possible. High near 37. Breezy, with a southwest wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
 
 Isolated snow showers before 11pm. Partly cloudy, with a low around 11. West wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday
 
 Snow showers, mainly after 11am. High near 31. South southwest wind 5 to 8 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Thursday Night
 
 Snow showers. Low around 22. Chance of precipitation is 90%.
Friday
 
 Snow showers. High near 36. Chance of precipitation is 90%.
Friday Night
 
 Snow showers likely. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.
Saturday
 
 Snow showers likely. Partly sunny, with a high near 32.
Saturday Night
 
 A chance of snow showers. Mostly cloudy, with a low around 16.
Sunday
 
 Snow showers likely. Mostly cloudy, with a high near 34.

 

Forecast from NOAA-NWS for Old Faithful WY.

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






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