National Weather Service Forecast for: Old Faithful WY
Issued by: National Weather Service Riverton, WY
Updated: 1:48 pm MST Dec 16, 2025
 
This
Afternoon
This Afternoon: Partly sunny, with a high near 37. Breezy, with a southwest wind 11 to 15 mph, with gusts as high as 33 mph.
Partly Sunny
and Breezy

 Tonight

Tonight: Snow showers, mainly after 1am. The snow could be heavy at times. Patchy blowing snow after 2am. Low around 28. Breezy, with a south southwest wind 11 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Heavy Snow
and Patchy
Blowing Snow
 Wednesday

Wednesday: Snow showers, possibly mixed with rain, becoming all snow after 11am. The snow could be heavy at times. Some thunder is also possible. Patchy blowing snow between 1pm and 2pm. High near 38. Windy, with a west southwest wind 23 to 28 mph becoming west 17 to 22 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Rain/Snow and
Areas Blowing
Snow
 Wednesday
Night
Wednesday Night: Increasing clouds, with a low around 10. Wind chill values as low as zero. Breezy, with a west wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 26 mph.
Partly Cloudy
and Breezy
then Mostly
Cloudy
 Thursday

Thursday: Snow showers, mainly after 11am. High near 32. Southwest wind 5 to 9 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Snow Showers

 Thursday
Night
Thursday Night: Snow showers. Low around 21. Southwest wind 10 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.
Snow Showers

 Friday

Friday: Snow showers. High near 35. Southwest wind around 14 mph, with gusts as high as 34 mph. Chance of precipitation is 90%.
Snow Showers

 Friday
Night
Friday Night: Snow showers. Low around 17. Chance of precipitation is 90%.
Snow Showers

 Saturday

Saturday: Snow showers likely. Partly sunny, with a high near 31. Chance of precipitation is 70%.
Snow Showers
Likely
Hi 37 °F Lo 28 °F Hi 38 °F Lo 10 °F Hi 32 °F Lo 21 °F Hi 35 °F Lo 17 °F Hi 31 °F

Hazardous Weather Outlook
Winter Storm Warning
 

This Afternoon
 
 Partly sunny, with a high near 37. Breezy, with a southwest wind 11 to 15 mph, with gusts as high as 33 mph.
Tonight
 
 Snow showers, mainly after 1am. The snow could be heavy at times. Patchy blowing snow after 2am. Low around 28. Breezy, with a south southwest wind 11 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
 
 Snow showers, possibly mixed with rain, becoming all snow after 11am. The snow could be heavy at times. Some thunder is also possible. Patchy blowing snow between 1pm and 2pm. High near 38. Windy, with a west southwest wind 23 to 28 mph becoming west 17 to 22 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
 
 Increasing clouds, with a low around 10. Wind chill values as low as zero. Breezy, with a west wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 26 mph.
Thursday
 
 Snow showers, mainly after 11am. High near 32. Southwest wind 5 to 9 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
 
 Snow showers. Low around 21. Southwest wind 10 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.
Friday
 
 Snow showers. High near 35. Southwest wind around 14 mph, with gusts as high as 34 mph. Chance of precipitation is 90%.
Friday Night
 
 Snow showers. Low around 17. Chance of precipitation is 90%.
Saturday
 
 Snow showers likely. Partly sunny, with a high near 31. Chance of precipitation is 70%.
Saturday Night
 
 A 40 percent chance of snow showers. Mostly cloudy, with a low around 17.
Sunday
 
 Snow showers likely. Mostly cloudy, with a high near 35.
Sunday Night
 
 Snow showers likely. Mostly cloudy, with a low around 26.
Monday
 
 Rain and snow showers likely. Mostly cloudy, with a high near 40.

 

Forecast from NOAA-NWS for Old Faithful WY.