National Weather Service Forecast for: Old Faithful WY
Issued by: National Weather Service Riverton, WY
Updated: 5:01 am MST Feb 17, 2026
 
Overnight

Overnight: Snow. The snow could be heavy at times. Steady temperature around 30. South southwest wind around 9 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 3 to 7 inches possible.
Heavy Snow

 Tuesday

Tuesday: Snow, mainly before noon. The snow could be heavy at times. High near 29. Southwest wind 9 to 11 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Heavy Snow
then Chance
Snow
 Tuesday
Night
Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 12. Southwest wind around 6 mph becoming calm in the evening. New snow accumulation of 1 to 3 inches possible.
Chance Snow

 Wednesday

Wednesday: Snow. High near 27. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Snow

 Wednesday
Night
Wednesday Night: Snow. Low around 5. Southwest wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Snow

 Thursday

Thursday: Snow likely before 11am, then snow showers likely after 11am. Mostly cloudy, with a high near 21. South southwest wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Snow Likely

 Thursday
Night
Thursday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around -1. Calm wind.
Chance Snow
Showers
 Friday

Friday: Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 21. Chance of precipitation is 60%.
Snow Showers
Likely
 Friday
Night
Friday Night: A 30 percent chance of snow showers, mainly before 11pm. Mostly cloudy, with a low around 3.
Chance Snow
Showers
Lo 30 °F Hi 29 °F Lo 12 °F Hi 27 °F Lo 5 °F Hi 21 °F Lo -1 °F Hi 21 °F Lo 3 °F

Hazardous Weather Outlook
Winter Weather Advisory
 

Overnight
 
 Snow. The snow could be heavy at times. Steady temperature around 30. South southwest wind around 9 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 3 to 7 inches possible.
Tuesday
 
 Snow, mainly before noon. The snow could be heavy at times. High near 29. Southwest wind 9 to 11 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Tuesday Night
 
 A 50 percent chance of snow. Mostly cloudy, with a low around 12. Southwest wind around 6 mph becoming calm in the evening. New snow accumulation of 1 to 3 inches possible.
Wednesday
 
 Snow. High near 27. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
 
 Snow. Low around 5. Southwest wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday
 
 Snow likely before 11am, then snow showers likely after 11am. Mostly cloudy, with a high near 21. South southwest wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Thursday Night
 
 A 40 percent chance of snow showers. Mostly cloudy, with a low around -1. Calm wind.
Friday
 
 Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 21. Chance of precipitation is 60%.
Friday Night
 
 A 30 percent chance of snow showers, mainly before 11pm. Mostly cloudy, with a low around 3.
Saturday
 
 A 30 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 25.
Saturday Night
 
 Partly cloudy, with a low around 2.
Sunday
 
 A slight chance of snow showers. Mostly sunny, with a high near 37.
Sunday Night
 
 A slight chance of snow showers. Mostly clear, with a low around 12.
Monday
 
 A chance of snow showers. Mostly sunny, with a high near 38.

 

Forecast from NOAA-NWS for Old Faithful WY.