National Weather Service Forecast for: Portola CA
Issued by: National Weather Service Reno, NV
Updated: 3:30 pm PST Dec 16, 2025
 
This
Afternoon
This Afternoon: Rain likely, mainly before 4pm. Mostly cloudy, with a high near 57. Southwest wind around 5 mph. Chance of precipitation is 70%.
Rain Likely

 Tonight

Tonight: Rain, mainly after 7pm. Low around 42. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Rain Likely
then Rain and
Breezy
 Wednesday

Wednesday: Rain, mainly before 7am. Snow level 9000 feet lowering to 7500 feet in the afternoon . High near 52. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Rain then
Chance Rain
 Wednesday
Night
Wednesday Night: A 20 percent chance of rain before 4am. Snow level 6900 feet rising to 8700 feet after midnight. Partly cloudy, with a low around 33. Southwest wind around 5 mph.
Slight Chance
Rain
 Thursday

Thursday: A slight chance of rain between 10am and 4pm. Mostly sunny, with a high near 56. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Slight Chance
Rain
 Thursday
Night
Thursday Night: A 30 percent chance of rain, mainly after 4am. Snow level 7400 feet. Partly cloudy, with a low around 36. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Chance Rain

 Friday

Friday: Rain, mainly after 10am. Snow level 7900 feet rising to 8700 feet in the afternoon. High near 51. Chance of precipitation is 80%.
Rain

 Friday
Night
Friday Night: Rain. Cloudy, with a low around 37.
Rain

 Saturday

Saturday: Rain. Mostly cloudy, with a high near 51.
Rain
Hi 57 °F Lo 42 °F Hi 52 °F Lo 33 °F Hi 56 °F Lo 36 °F Hi 51 °F Lo 37 °F Hi 51 °F

Wind Advisory
 

This Afternoon
 
 Rain likely, mainly before 4pm. Mostly cloudy, with a high near 57. Southwest wind around 5 mph. Chance of precipitation is 70%.
Tonight
 
 Rain, mainly after 7pm. Low around 42. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Wednesday
 
 Rain, mainly before 7am. Snow level 9000 feet lowering to 7500 feet in the afternoon . High near 52. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Wednesday Night
 
 A 20 percent chance of rain before 4am. Snow level 6900 feet rising to 8700 feet after midnight. Partly cloudy, with a low around 33. Southwest wind around 5 mph.
Thursday
 
 A slight chance of rain between 10am and 4pm. Mostly sunny, with a high near 56. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday Night
 
 A 30 percent chance of rain, mainly after 4am. Snow level 7400 feet. Partly cloudy, with a low around 36. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
 
 Rain, mainly after 10am. Snow level 7900 feet rising to 8700 feet in the afternoon. High near 51. Chance of precipitation is 80%.
Friday Night
 
 Rain. Cloudy, with a low around 37.
Saturday
 
 Rain. Mostly cloudy, with a high near 51.
Saturday Night
 
 Rain. Cloudy, with a low around 38.
Sunday
 
 Rain. Cloudy, with a high near 49.
Sunday Night
 
 Rain. Mostly cloudy, with a low around 35.
Monday
 
 Rain likely. Snow level 7400 feet. Mostly cloudy, with a high near 50.

 

Forecast from NOAA-NWS for Portola CA.