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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: 9:18 am MDT Oct 7, 2026
 
Today

Today: Sunny, with a high near 70. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunny

 Tonight

Tonight: Mostly clear, with a low around 33. Light and variable wind.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 68. Calm wind becoming west southwest around 6 mph in the afternoon.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 33. Calm wind becoming south around 5 mph after midnight.
Mostly Clear

 Friday

Friday: Sunny, with a high near 66. Southwest wind 5 to 11 mph.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 37. South southwest wind 6 to 8 mph.
Partly Cloudy

 Saturday

Saturday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 59. South southwest wind 6 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Slight Chance
Showers then
Chance
Showers
 Saturday
Night
Saturday Night: Showers and possibly a thunderstorm. Low around 30. Chance of precipitation is 80%.
Showers

 Sunday

Sunday: Rain showers before 3pm, then rain and snow showers. Some thunder is also possible. High near 48. Chance of precipitation is 90%.
Showers then
Rain/Snow
Hi 70 °F Lo 33 °F Hi 68 °F Lo 33 °F Hi 66 °F Lo 37 °F Hi 59 °F Lo 30 °F Hi 48 °F

 

Today
 
 Sunny, with a high near 70. Calm wind becoming west southwest around 5 mph in the afternoon.
Tonight
 
 Mostly clear, with a low around 33. Light and variable wind.
Thursday
 
 Sunny, with a high near 68. Calm wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 33. Calm wind becoming south around 5 mph after midnight.
Friday
 
 Sunny, with a high near 66. Southwest wind 5 to 11 mph.
Friday Night
 
 Partly cloudy, with a low around 37. South southwest wind 6 to 8 mph.
Saturday
 
 A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 59. South southwest wind 6 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Saturday Night
 
 Showers and possibly a thunderstorm. Low around 30. Chance of precipitation is 80%.
Sunday
 
 Rain showers before 3pm, then rain and snow showers. Some thunder is also possible. High near 48. Chance of precipitation is 90%.
Sunday Night
 
 Rain and snow showers. Low around 25. Chance of precipitation is 80%.
Columbus Day
 
 Rain and snow showers likely. Some thunder is also possible. Snow level 8500 feet. Mostly cloudy, with a high near 48.
Monday Night
 
 A chance of rain and snow showers. Some thunder is also possible. Snow level 8700 feet lowering to 8000 feet after midnight . Mostly cloudy, with a low around 23.
Tuesday
 
 A chance of rain and snow showers. Some thunder is also possible. Snow level 7800 feet rising to 8700 feet in the afternoon. Mostly sunny, with a high near 51.

 

Forecast from NOAA-NWS for Old Faithful WY.

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






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