National Weather Service Forecast for: Whitethorn CA
Issued by: National Weather Service Eureka, CA
Updated: 1:10 am PST Feb 2, 2026
 
Overnight

Overnight: Mostly clear, with a low around 38. Light north northwest wind.
Mostly Clear
 Monday

Monday: Mostly sunny, with a high near 63. North northeast wind around 5 mph becoming calm in the afternoon.
Mostly Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 41. Calm wind.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 65. Calm wind.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 41. Calm wind.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 67. Calm wind.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 41.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 64.
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 42.
Partly Cloudy
Lo 38 °F Hi 63 °F Lo 41 °F Hi 65 °F Lo 41 °F Hi 67 °F Lo 41 °F Hi 64 °F Lo 42 °F

 

Overnight
 
 Mostly clear, with a low around 38. Light north northwest wind.
Monday
 
 Mostly sunny, with a high near 63. North northeast wind around 5 mph becoming calm in the afternoon.
Monday Night
 
 Mostly clear, with a low around 41. Calm wind.
Tuesday
 
 Sunny, with a high near 65. Calm wind.
Tuesday Night
 
 Mostly clear, with a low around 41. Calm wind.
Wednesday
 
 Sunny, with a high near 67. Calm wind.
Wednesday Night
 
 Mostly clear, with a low around 41.
Thursday
 
 Sunny, with a high near 64.
Thursday Night
 
 Partly cloudy, with a low around 42.
Friday
 
 Mostly sunny, with a high near 62.
Friday Night
 
 Patchy fog. Otherwise, partly cloudy, with a low around 42.
Saturday
 
 A chance of rain. Mostly sunny, with a high near 60.
Saturday Night
 
 A chance of rain. Mostly cloudy, with a low around 44.
Sunday
 
 Rain likely. Partly sunny, with a high near 59.

 

Forecast from NOAA-NWS for Whitethorn CA.