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The Fire Weather Zones in Del Norte, Humboldt, Trinity, Mendocino, and Lake Counties will be Changing in April 2026
The Public Forecast Zones in Trinity and Lake Counties will be Changing in April 2026

Hazardous Weather Conditions

Coastal Flood Advisory in effect from April 20, 12:00 AM PDT until April 20, 04:00 AM PDT

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

Lat: 40.97806°NLon: 124.10861°WElev: 217.0ft.

Partly Cloudy

59°F

15°C

Humidity	43%
Wind Speed	N 0 MPH
Barometer	29.81 in (1009.48 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	19 Apr 02:53 PM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Arcata/Eureka Airport CA

Coastal Flood Advisory April 20, 12:00am until April 20, 04:00am

Click here for hazard details and duration

Coastal Flood Advisory

This Afternoon
High: 62 °F
Slight Chance
Rain
Tonight
Low: 46 °F
Chance Rain
then Rain
Monday
High: 57 °F
Rain
Monday Night
Low: 45 °F
Rain
Tuesday
High: 56 °F
Showers
Tuesday Night
Low: 44 °F
Rain Likely
Wednesday
High: 56 °F
Chance Rain
Wednesday Night
Low: 42 °F
Partly Cloudy
Thursday
High: 55 °F
Mostly Sunny

Detailed Forecast

This Afternoon

A 20 percent chance of rain. Mostly cloudy, with a high near 62. Southwest wind around 13 mph, with gusts as high as 23 mph.

Tonight

Rain, mainly after 2am. Low around 46. West southwest wind 5 to 7 mph becoming light and variable. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday

Rain. High near 57. Southwest wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Monday Night

Rain. Low around 45. Southeast wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 56. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

Rain likely, mainly before 11pm. Mostly cloudy, with a low around 44. West northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday

A 50 percent chance of rain. Partly sunny, with a high near 56. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night

Partly cloudy, with a low around 42.

Thursday

Mostly sunny, with a high near 55.

Thursday Night

Mostly clear, with a low around 42.

Friday

Sunny, with a high near 60.

Friday Night

Partly cloudy, with a low around 44.