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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: 3:17 pm MDT Oct 2, 2026
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 65. West southwest wind around 11 mph.
Mostly Sunny
 Tonight

Tonight: Mostly clear, with a low around 34. West southwest wind 5 to 8 mph becoming calm in the evening.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 68. Light and variable wind.
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 33. Calm wind.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 38. Light south wind.
Mostly Clear
 Monday

Monday: Mostly sunny, with a high near 70. South wind 3 to 7 mph.
Mostly Sunny
 Monday
Night
Monday Night: Partly cloudy, with a low around 39.
Partly Cloudy
 Tuesday

Tuesday: Sunny, with a high near 68.
Sunny
Hi 65 °F Lo 34 °F Hi 68 °F Lo 33 °F Hi 69 °F Lo 38 °F Hi 70 °F Lo 39 °F Hi 68 °F

 

This Afternoon
 
 Mostly sunny, with a high near 65. West southwest wind around 11 mph.
Tonight
 
 Mostly clear, with a low around 34. West southwest wind 5 to 8 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 68. Light and variable wind.
Saturday Night
 
 Mostly clear, with a low around 33. Calm wind.
Sunday
 
 Sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
 
 Mostly clear, with a low around 38. Light south wind.
Monday
 
 Mostly sunny, with a high near 70. South wind 3 to 7 mph.
Monday Night
 
 Partly cloudy, with a low around 39.
Tuesday
 
 Sunny, with a high near 68.
Tuesday Night
 
 Mostly clear, with a low around 37.
Wednesday
 
 Sunny, with a high near 67.
Wednesday Night
 
 Mostly clear, with a low around 36.
Thursday
 
 Sunny, with a high near 66.

 

Forecast from NOAA-NWS for Old Faithful WY.

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






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