National Weather Service Forecast for: Potter Valley CA
Issued by: National Weather Service Eureka, CA
Updated: 1:26 pm PDT Oct 6, 2026
 
This
Afternoon
This Afternoon: Sunny and hot, with a high near 99. Calm wind becoming west southwest 5 to 7 mph.
Hot
 Tonight

Tonight: Patchy fog after 2am. Otherwise, clear, with a low around 52. West wind around 5 mph becoming calm in the evening.
Clear then
Patchy Fog
 Wednesday

Wednesday: Patchy fog before 11am. Otherwise, sunny and hot, with a high near 99. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Patchy Fog
then Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 50. Calm wind.
Mostly Clear
 Thursday

Thursday: Sunny and hot, with a high near 99. Calm wind becoming southwest around 6 mph in the afternoon.
Hot
 Thursday
Night
Thursday Night: Clear, with a low around 52. West wind around 6 mph becoming calm in the evening.
Clear
 Friday

Friday: Sunny, with a high near 96.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 42.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 76.
Sunny
Hi 99 °F Lo 52 °F Hi 99 °F Lo 50 °F Hi 99 °F Lo 52 °F Hi 96 °F Lo 42 °F Hi 76 °F

Heat Advisory
 

This Afternoon
 
 Sunny and hot, with a high near 99. Calm wind becoming west southwest 5 to 7 mph.
Tonight
 
 Patchy fog after 2am. Otherwise, clear, with a low around 52. West wind around 5 mph becoming calm in the evening.
Wednesday
 
 Patchy fog before 11am. Otherwise, sunny and hot, with a high near 99. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 50. Calm wind.
Thursday
 
 Sunny and hot, with a high near 99. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
 
 Clear, with a low around 52. West wind around 6 mph becoming calm in the evening.
Friday
 
 Sunny, with a high near 96.
Friday Night
 
 Mostly clear, with a low around 42.
Saturday
 
 Sunny, with a high near 76.
Saturday Night
 
 Patchy fog after 5am. Otherwise, mostly clear, with a low around 34.
Sunday
 
 Patchy fog. Otherwise, sunny, with a high near 74.
Sunday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 35.
Columbus Day
 
 Patchy fog. Otherwise, sunny, with a high near 77.

 

Forecast from NOAA-NWS for Potter Valley CA.