National Weather Service Forecast for: Sun Valley NV
Issued by: National Weather Service Reno, NV
Updated: 1:15 pm PST Dec 18, 2025
 
Tonight

Tonight: Mostly clear, with a low around 43. West wind around 15 mph, with gusts as high as 25 mph.
Mostly Clear
 Friday

Friday: A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 57. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 45 mph.
Chance Rain
and Breezy
 Friday
Night
Friday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 42. Breezy, with a west wind 20 to 25 mph, with gusts as high as 40 mph.
Chance Rain
and Breezy
 Saturday

Saturday: Rain likely, mainly after 4pm. Snow level 7800 feet. Partly sunny, with a high near 55. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Rain Likely
 Saturday
Night
Saturday Night: Rain. Low around 45. Southwest wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Sunday

Sunday: Rain. High near 55. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Sunday
Night
Sunday Night: Rain. Low around 41. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Monday

Monday: Rain likely. Snow level 7700 feet. Mostly cloudy, with a high near 52.
Rain Likely
 Monday
Night
Monday Night: Rain likely. Snow level 7100 feet. Mostly cloudy, with a low around 37.
Rain Likely
Lo 43 °F Hi 57 °F Lo 42 °F Hi 55 °F Lo 45 °F Hi 55 °F Lo 41 °F Hi 52 °F Lo 37 °F

Wind Advisory
 

Tonight
 
 Mostly clear, with a low around 43. West wind around 15 mph, with gusts as high as 25 mph.
Friday
 
 A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 57. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 45 mph.
Friday Night
 
 A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 42. Breezy, with a west wind 20 to 25 mph, with gusts as high as 40 mph.
Saturday
 
 Rain likely, mainly after 4pm. Snow level 7800 feet. Partly sunny, with a high near 55. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Saturday Night
 
 Rain. Low around 45. Southwest wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
 
 Rain. High near 55. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
 
 Rain. Low around 41. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
 
 Rain likely. Snow level 7700 feet. Mostly cloudy, with a high near 52.
Monday Night
 
 Rain likely. Snow level 7100 feet. Mostly cloudy, with a low around 37.
Tuesday
 
 Rain likely. Snow level 6900 feet. Mostly cloudy, with a high near 53.
Tuesday Night
 
 Rain. Snow level 6600 feet. Mostly cloudy, with a low around 35.
Wednesday
 
 Rain and snow. Snow level 5800 feet. Mostly cloudy, with a high near 47.
Wednesday Night
 
 Rain and snow likely. Snow level 5300 feet. Mostly cloudy, with a low around 30.
Christmas Day
 
 Rain and snow likely. Snow level 5000 feet rising to 5600 feet in the afternoon. Mostly cloudy, with a high near 45.

 

Forecast from NOAA-NWS for Sun Valley NV.