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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: 8:01 am MDT Jun 3, 2026
 
Today

Today: Increasing clouds, with a high near 67. West southwest wind 5 to 7 mph.
Increasing
Clouds

 Tonight

Tonight: Mostly cloudy, with a low around 35. West southwest wind around 5 mph becoming calm in the evening.
Mostly Cloudy

 Thursday

Thursday: Isolated showers and thunderstorms between 2pm and 3pm. Partly sunny, then gradually becoming sunny, with a high near 65. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 10%.
Sunny then
Isolated
T-storms
 Thursday
Night
Thursday Night: Mostly clear, with a low around 35. West southwest wind around 6 mph becoming calm in the evening.
Mostly Clear

 Friday

Friday: Sunny, with a high near 70. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 24 mph.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 38. Southwest wind 5 to 7 mph becoming light and variable. Winds could gust as high as 23 mph.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 72. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph.
Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 39.
Partly Cloudy

 Sunday

Sunday: A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 62.
Partly Sunny
then Slight
Chance
T-storms
Hi 67 °F Lo 35 °F Hi 65 °F Lo 35 °F Hi 70 °F Lo 38 °F Hi 72 °F Lo 39 °F Hi 62 °F

 

Today
 
 Increasing clouds, with a high near 67. West southwest wind 5 to 7 mph.
Tonight
 
 Mostly cloudy, with a low around 35. West southwest wind around 5 mph becoming calm in the evening.
Thursday
 
 Isolated showers and thunderstorms between 2pm and 3pm. Partly sunny, then gradually becoming sunny, with a high near 65. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 10%.
Thursday Night
 
 Mostly clear, with a low around 35. West southwest wind around 6 mph becoming calm in the evening.
Friday
 
 Sunny, with a high near 70. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 24 mph.
Friday Night
 
 Mostly clear, with a low around 38. Southwest wind 5 to 7 mph becoming light and variable. Winds could gust as high as 23 mph.
Saturday
 
 Sunny, with a high near 72. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph.
Saturday Night
 
 Partly cloudy, with a low around 39.
Sunday
 
 A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 62.
Sunday Night
 
 Mostly clear, with a low around 33.
Monday
 
 Sunny, with a high near 68.
Monday Night
 
 Partly cloudy, with a low around 37.
Tuesday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 71.

 

Forecast from NOAA-NWS for Old Faithful WY.

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






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