National Weather Service Forecast for: Arcata CA
Issued by: National Weather Service Eureka, CA
Updated: 8:50 pm PST Nov 1, 2026
 
Tonight

Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 43. Calm wind.
Patchy Fog

 Monday

Monday: Patchy fog before 7am. Otherwise, cloudy, with a high near 59. Calm wind.
Patchy Fog
then Cloudy
 Monday
Night
Monday Night: Rain likely, mainly after 4am. Cloudy, with a low around 48. East southeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Slight Chance
Rain then
Rain Likely
 Tuesday

Tuesday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 58. East wind 5 to 9 mph becoming south in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 45. East southeast wind 3 to 5 mph.
Mostly Cloudy

 Wednesday

Wednesday: Partly sunny, with a high near 59. Calm wind becoming west around 5 mph in the afternoon.
Partly Sunny

 Wednesday
Night
Wednesday Night: A 20 percent chance of rain. Patchy fog before 10pm, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 46.
Slight Chance
Rain and
Patchy Fog
 Thursday

Thursday: Patchy fog before 7am. Otherwise, partly sunny, with a high near 59.
Patchy Fog
then Mostly
Sunny
 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 45.
Mostly Cloudy
Lo 43 °F Hi 59 °F Lo 48 °F Hi 58 °F Lo 45 °F Hi 59 °F Lo 46 °F Hi 59 °F Lo 45 °F

Beach Hazards Statement
 

Tonight
 
 Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 43. Calm wind.
Monday
 
 Patchy fog before 7am. Otherwise, cloudy, with a high near 59. Calm wind.
Monday Night
 
 Rain likely, mainly after 4am. Cloudy, with a low around 48. East southeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
 Rain likely, mainly before 10am. Mostly cloudy, with a high near 58. East wind 5 to 9 mph becoming south in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Mostly cloudy, with a low around 45. East southeast wind 3 to 5 mph.
Wednesday
 
 Partly sunny, with a high near 59. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
 
 A 20 percent chance of rain. Patchy fog before 10pm, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 46.
Thursday
 
 Patchy fog before 7am. Otherwise, partly sunny, with a high near 59.
Thursday Night
 
 Mostly cloudy, with a low around 45.
Friday
 
 Mostly cloudy, with a high near 60.
Friday Night
 
 Mostly cloudy, with a low around 46.
Saturday
 
 Partly sunny, with a high near 62.
Saturday Night
 
 A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 49.
Sunday
 
 A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 60.

 

Forecast from NOAA-NWS for Arcata CA.