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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: 3:33 am MST Feb 3, 2026
 
Overnight

Overnight: Isolated snow showers after 5am. Mostly cloudy, with a steady temperature around 25. West southwest wind around 8 mph. Chance of precipitation is 10%.
Isolated Snow
Showers
 Tuesday

Tuesday: Isolated snow showers before 8am. Partly sunny, with a high near 37. West northwest wind 7 to 9 mph. Chance of precipitation is 20%.
Isolated Snow
Showers then
Mostly Sunny
 Tuesday
Night
Tuesday Night: Patchy fog before 11pm. Otherwise, partly cloudy, with a low around 15. West northwest wind around 5 mph becoming calm in the evening.
Patchy Fog
then Partly
Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 41. Calm wind.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 16. Calm wind.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 48. Calm wind.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 16. Calm wind.
Mostly Clear

 Friday

Friday: Sunny, with a high near 47.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 17.
Mostly Clear
Lo 25 °F Hi 37 °F Lo 15 °F Hi 41 °F Lo 16 °F Hi 48 °F Lo 16 °F Hi 47 °F Lo 17 °F

 

Overnight
 
 Isolated snow showers after 5am. Mostly cloudy, with a steady temperature around 25. West southwest wind around 8 mph. Chance of precipitation is 10%.
Tuesday
 
 Isolated snow showers before 8am. Partly sunny, with a high near 37. West northwest wind 7 to 9 mph. Chance of precipitation is 20%.
Tuesday Night
 
 Patchy fog before 11pm. Otherwise, partly cloudy, with a low around 15. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
 
 Mostly sunny, with a high near 41. Calm wind.
Wednesday Night
 
 Mostly clear, with a low around 16. Calm wind.
Thursday
 
 Sunny, with a high near 48. Calm wind.
Thursday Night
 
 Mostly clear, with a low around 16. Calm wind.
Friday
 
 Sunny, with a high near 47.
Friday Night
 
 Mostly clear, with a low around 17.
Saturday
 
 Mostly sunny, with a high near 41.
Saturday Night
 
 Partly cloudy, with a low around 18.
Sunday
 
 Mostly sunny, with a high near 40.
Sunday Night
 
 A chance of snow showers. Mostly cloudy, with a low around 21.
Monday
 
 Snow showers likely. Partly sunny, with a high near 36.

 

Forecast from NOAA-NWS for Old Faithful WY.

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






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