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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: 7:17 pm MDT Aug 7, 2026
 
Tonight

Tonight: Areas of smoke. Mostly clear, with a low around 47. Calm wind.
Areas Smoke
 Saturday

Saturday: Areas of smoke. Sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.
Areas Smoke
 Saturday
Night
Saturday Night: Areas of smoke. Partly cloudy, with a low around 47. West wind around 6 mph becoming calm in the evening.
Areas Smoke
 Sunday

Sunday: Sunny, with a high near 82. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 46. West wind around 6 mph becoming calm in the evening.
Mostly Clear
 Monday

Monday: Sunny, with a high near 81. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 22 mph.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 43. West southwest wind around 5 mph becoming calm after midnight.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 80.
Sunny
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 43.
Partly Cloudy
Lo 47 °F Hi 83 °F Lo 47 °F Hi 82 °F Lo 46 °F Hi 81 °F Lo 43 °F Hi 80 °F Lo 43 °F

Air Quality Alert
Red Flag Warning
 

Tonight
 
 Areas of smoke. Mostly clear, with a low around 47. Calm wind.
Saturday
 
 Areas of smoke. Sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
 
 Areas of smoke. Partly cloudy, with a low around 47. West wind around 6 mph becoming calm in the evening.
Sunday
 
 Sunny, with a high near 82. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
 
 Mostly clear, with a low around 46. West wind around 6 mph becoming calm in the evening.
Monday
 
 Sunny, with a high near 81. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 22 mph.
Monday Night
 
 Mostly clear, with a low around 43. West southwest wind around 5 mph becoming calm after midnight.
Tuesday
 
 Sunny, with a high near 80.
Tuesday Night
 
 Partly cloudy, with a low around 43.
Wednesday
 
 Sunny, with a high near 78.
Wednesday Night
 
 Partly cloudy, with a low around 41.
Thursday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Thursday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 41.
Friday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73.

 

Forecast from NOAA-NWS for Old Faithful WY.

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






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