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

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

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

Partly Cloudy

48°F

9°C

Humidity	87%
Wind Speed	NE 4 MPH
Barometer	29.83 in (1010.16 mb)
Dewpoint	45°F (7°C)
Visibility	10.00 mi
Wind Chill	47°F (8°C)
Last update	15 Feb 12:00 AM PST

More Information:

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

Extended Forecast for

Arcata/Eureka Airport CA

Overnight
Low: 48 °F
Rain Likely
Sunday
High: 56 °F
Rain
Sunday Night
Low: 44 °F
Rain
Washington's Birthday
High: 52 °F
Rain
Monday Night
Low: 39 °F
Showers
Tuesday
High: 45 °F
Showers
Tuesday Night
Low: 37 °F
Showers
Wednesday
High: 46 °F
Showers
Wednesday Night
Low: 37 °F
Rain

Detailed Forecast

Overnight

Rain likely. Mostly cloudy, with a low around 48. Southeast wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Sunday

Rain. High near 56. East southeast wind 8 to 10 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night

Rain, mainly after 4am. Low around 44. East southeast wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Washington's Birthday

Rain. High near 52. Light and variable wind becoming north northwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday Night

Rain, mainly before 1am, then showers and possibly a thunderstorm after 1am. Low around 39. North northwest wind around 8 mph becoming west southwest after midnight. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday

Showers and possibly a thunderstorm. High near 45. Southwest wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday Night

Showers, with thunderstorms also possible after 10pm. Low around 37. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Showers. Cloudy, with a high near 46.

Wednesday Night

Rain. Cloudy, with a low around 37.

Thursday

Rain. Cloudy, with a high near 48.

Thursday Night

Rain likely. Mostly cloudy, with a low around 36.

Friday

Rain likely. Mostly cloudy, with a high near 50.

Friday Night

Rain likely. Mostly cloudy, with a low around 40.