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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: 8:47 pm MDT Apr 3, 2026
 
Tonight

Tonight: Patchy fog between 11pm and midnight. Otherwise, partly cloudy, with a low around 17. Calm wind.
Patchy Fog
then Partly
Cloudy
 Saturday

Saturday: Sunny, with a high near 46. Light and variable wind.
Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 18. Calm wind.
Mostly Clear

 Sunday

Sunday: Sunny, with a high near 53. Calm wind.
Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 22. Calm wind.
Partly Cloudy

 Monday

Monday: Mostly sunny, with a high near 54. Light and variable wind.
Mostly Sunny

 Monday
Night
Monday Night: Partly cloudy, with a low around 26. Light south wind.
Partly Cloudy

 Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms after noon. Snow level 7600 feet rising to 8500 feet in the afternoon. Sunny, with a high near 54.
Sunny then
Chance
Showers
 Tuesday
Night
Tuesday Night: A chance of rain showers before midnight, then a chance of snow showers. Snow level 8600 feet lowering to 7400 feet after midnight . Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Chance
Showers then
Chance Snow
Showers
Lo 17 °F Hi 46 °F Lo 18 °F Hi 53 °F Lo 22 °F Hi 54 °F Lo 26 °F Hi 54 °F Lo 27 °F

 

Tonight
 
 Patchy fog between 11pm and midnight. Otherwise, partly cloudy, with a low around 17. Calm wind.
Saturday
 
 Sunny, with a high near 46. Light and variable wind.
Saturday Night
 
 Mostly clear, with a low around 18. Calm wind.
Sunday
 
 Sunny, with a high near 53. Calm wind.
Sunday Night
 
 Partly cloudy, with a low around 22. Calm wind.
Monday
 
 Mostly sunny, with a high near 54. Light and variable wind.
Monday Night
 
 Partly cloudy, with a low around 26. Light south wind.
Tuesday
 
 A 30 percent chance of showers and thunderstorms after noon. Snow level 7600 feet rising to 8500 feet in the afternoon. Sunny, with a high near 54.
Tuesday Night
 
 A chance of rain showers before midnight, then a chance of snow showers. Snow level 8600 feet lowering to 7400 feet after midnight . Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Wednesday
 
 Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 45. Chance of precipitation is 60%.
Wednesday Night
 
 Snow showers likely. Mostly cloudy, with a low around 21.
Thursday
 
 Snow showers likely. Partly sunny, with a high near 43.
Thursday Night
 
 A chance of snow showers. Partly cloudy, with a low around 19.
Friday
 
 A chance of snow showers. Mostly sunny, with a high near 45.

 

Forecast from NOAA-NWS for Old Faithful WY.

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






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