National Weather Service Forecast for: Fortuna CA
Issued by: National Weather Service Eureka, CA
Updated: 1:10 pm PST Feb 1, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 42. Light north wind.
Mostly Cloudy
 Monday

Monday: Partly sunny, with a high near 60. North wind 3 to 6 mph.
Partly Sunny
 Monday
Night
Monday Night: Mostly clear during the evening, then mostly cloudy overnight, with a low around 43. Calm wind.
Mostly Cloudy
 Tuesday

Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 66. Calm wind.
Decreasing
Clouds
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 45. Calm wind.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 69. Calm wind.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 45.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 67.
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 45.
Partly Cloudy
Lo 42 °F Hi 60 °F Lo 43 °F Hi 66 °F Lo 45 °F Hi 69 °F Lo 45 °F Hi 67 °F Lo 45 °F

 

Overnight
 
 Mostly cloudy, with a low around 42. Light north wind.
Monday
 
 Partly sunny, with a high near 60. North wind 3 to 6 mph.
Monday Night
 
 Mostly clear during the evening, then mostly cloudy overnight, with a low around 43. Calm wind.
Tuesday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 66. Calm wind.
Tuesday Night
 
 Mostly clear, with a low around 45. Calm wind.
Wednesday
 
 Sunny, with a high near 69. Calm wind.
Wednesday Night
 
 Mostly clear, with a low around 45.
Thursday
 
 Sunny, with a high near 67.
Thursday Night
 
 Partly cloudy, with a low around 45.
Friday
 
 Mostly sunny, with a high near 63.
Friday Night
 
 Mostly cloudy, with a low around 44.
Saturday
 
 A slight chance of rain. Partly sunny, with a high near 62.
Saturday Night
 
 A chance of rain. Mostly cloudy, with a low around 46.
Sunday
 
 A chance of rain. Mostly cloudy, with a high near 60.

 

Forecast from NOAA-NWS for Fortuna CA.