National Weather Service Forecast for: Old Faithful WY
Issued by: National Weather Service Riverton, WY
Updated: 5:01 am MST Nov 2, 2026
 
Today

Today: Partly sunny, with a high near 38. North northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Partly Sunny
 Tonight

Tonight: Mostly clear, with a low around 19. Light and variable wind.
Mostly Clear
 Tuesday

Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 45. Calm wind.
Decreasing
Clouds
 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 21. Calm wind.
Mostly Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 46. Calm wind.
Mostly Sunny
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 20. Calm wind.
Mostly Cloudy
 Thursday

Thursday: Partly sunny, with a high near 39. Calm wind becoming southwest around 6 mph in the afternoon.
Partly Sunny
 Thursday
Night
Thursday Night: A 30 percent chance of snow showers. Mostly cloudy, with a low around 21.
Chance Snow
Showers
 Friday

Friday: A 20 percent chance of snow showers. Mostly cloudy, with a high near 39.
Slight Chance
Snow Showers
Hi 38 °F Lo 19 °F Hi 45 °F Lo 21 °F Hi 46 °F Lo 20 °F Hi 39 °F Lo 21 °F Hi 39 °F

 

Today
 
 Partly sunny, with a high near 38. North northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Tonight
 
 Mostly clear, with a low around 19. Light and variable wind.
Tuesday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 45. Calm wind.
Tuesday Night
 
 Mostly cloudy, with a low around 21. Calm wind.
Wednesday
 
 Mostly sunny, with a high near 46. Calm wind.
Wednesday Night
 
 Mostly cloudy, with a low around 20. Calm wind.
Thursday
 
 Partly sunny, with a high near 39. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
 
 A 30 percent chance of snow showers. Mostly cloudy, with a low around 21.
Friday
 
 A 20 percent chance of snow showers. Mostly cloudy, with a high near 39.
Friday Night
 
 A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 20.
Saturday
 
 Mostly sunny, with a high near 41.
Saturday Night
 
 Mostly clear, with a low around 18.
Sunday
 
 Mostly sunny, with a high near 48.

 

Forecast from NOAA-NWS for Old Faithful WY.