National Weather Service Forecast for: Arcata CA
Issued by: National Weather Service Eureka, CA
Updated: 3:09 pm PST Dec 22, 2025
 
Tonight

Tonight: Rain, mainly after 4am. Low around 44. Southwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 80%.
Mostly Cloudy
then Rain
 Tuesday

Tuesday: Rain. High near 54. Calm wind becoming east around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Rain
 Tuesday
Night
Tuesday Night: Rain. Low around 45. East northeast wind 7 to 14 mph becoming south southeast after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Rain
 Wednesday

Wednesday: Rain. High near 55. Breezy, with a south southeast wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain and
Breezy
 Wednesday
Night
Wednesday Night: Rain. Low around 46. Southeast wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Christmas
Day
Christmas Day: Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain after 4pm. High near 52. Windy, with a south southeast wind 14 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Showers and
Windy
 Thursday
Night
Thursday Night: Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then rain and possibly a thunderstorm after 4am. Low around 45. Breezy. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Showers and
Breezy
 Friday

Friday: Rain, mainly before 4pm. Mostly cloudy, with a high near 50.
Rain
 Friday
Night
Friday Night: A chance of rain, mainly before 10pm. Partly cloudy, with a low around 38.
Chance Rain
Lo 44 °F Hi 54 °F Lo 45 °F Hi 55 °F Lo 46 °F Hi 52 °F Lo 45 °F Hi 50 °F Lo 38 °F

Flood Watch
Wind Advisory
 

Tonight
 
 Rain, mainly after 4am. Low around 44. Southwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 80%.
Tuesday
 
 Rain. High near 54. Calm wind becoming east around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
 
 Rain. Low around 45. East northeast wind 7 to 14 mph becoming south southeast after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Wednesday
 
 Rain. High near 55. Breezy, with a south southeast wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
 
 Rain. Low around 46. Southeast wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Christmas Day
 
 Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain after 4pm. High near 52. Windy, with a south southeast wind 14 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
 
 Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then rain and possibly a thunderstorm after 4am. Low around 45. Breezy. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
 
 Rain, mainly before 4pm. Mostly cloudy, with a high near 50.
Friday Night
 
 A chance of rain, mainly before 10pm. Partly cloudy, with a low around 38.
Saturday
 
 Mostly sunny, with a high near 51.
Saturday Night
 
 Mostly cloudy, with a low around 38.
Sunday
 
 Partly sunny, with a high near 53.
Sunday Night
 
 Mostly cloudy, with a low around 40.
Monday
 
 Mostly sunny, with a high near 55.

 

Forecast from NOAA-NWS for Arcata CA.