National Weather Service Forecast for: Old Faithful WY
Issued by: National Weather Service Riverton, WY
Updated: 8:32 am MDT Sep 13, 2026
 
Today

Today: Sunny, with a high near 66. Southwest wind 6 to 10 mph.
Sunny

 Tonight

Tonight: A slight chance of snow showers between 1am and 2am. Snow level 10800 feet lowering to 7400 feet after midnight . Increasing clouds, with a low around 27. Southwest wind 6 to 11 mph. Chance of precipitation is 20%.
Mostly Clear
then Slight
Chance Snow
Showers
 Monday

Monday: Sunny, with a high near 54. West southwest wind 9 to 11 mph.
Sunny

 Monday
Night
Monday Night: Mostly clear, with a low around 25. West southwest wind 5 to 9 mph becoming calm in the evening.
Mostly Clear

 Tuesday

Tuesday: Sunny, with a high near 62. Calm wind becoming southwest 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.
Sunny

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 30. Southwest wind around 6 mph becoming calm in the evening.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 64. Calm wind becoming southwest around 5 mph in the afternoon.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 30.
Mostly Clear

 Thursday

Thursday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64.
Mostly Sunny
then Chance
Showers
Hi 66 °F Lo 27 °F Hi 54 °F Lo 25 °F Hi 62 °F Lo 30 °F Hi 64 °F Lo 30 °F Hi 64 °F

 

Today
 
 Sunny, with a high near 66. Southwest wind 6 to 10 mph.
Tonight
 
 A slight chance of snow showers between 1am and 2am. Snow level 10800 feet lowering to 7400 feet after midnight . Increasing clouds, with a low around 27. Southwest wind 6 to 11 mph. Chance of precipitation is 20%.
Monday
 
 Sunny, with a high near 54. West southwest wind 9 to 11 mph.
Monday Night
 
 Mostly clear, with a low around 25. West southwest wind 5 to 9 mph becoming calm in the evening.
Tuesday
 
 Sunny, with a high near 62. Calm wind becoming southwest 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
 
 Mostly clear, with a low around 30. Southwest wind around 6 mph becoming calm in the evening.
Wednesday
 
 Sunny, with a high near 64. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 30.
Thursday
 
 A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64.
Thursday Night
 
 A chance of showers and thunderstorms. Mostly clear, with a low around 31. Chance of precipitation is 40%.
Friday
 
 A slight chance of showers. Sunny, with a high near 64.
Friday Night
 
 Mostly clear, with a low around 30.
Saturday
 
 Sunny, with a high near 67.

 

Forecast from NOAA-NWS for Old Faithful WY.