Arcata, CA Weather Forecast
Humboldt County, California
Live radar, warnings and storm tracking for Arcata, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Arcata
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Arcata, CA at a glance
Arcata is home to about 19,012 people in Humboldt County, across 9.4 square miles. It ranks 307th by population of 450 places in California with a forecast here. The nearest neighbour with its own forecast is Eureka, 6 miles away.
- County
- Humboldt County
- Population
- 19,012 2023 est.
- Land area
- 9.4 sq mi
- People per sq mi
- 2,019
- Forecast point
- 40.8623°N, 124.0750°W
How well can the network see Arcata?
The nearest Doppler radar is KBHX (Eureka, CA), to the SSW. Its lowest scan passes about 1,700 ft above Arcata. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Arcata show up clearly. Arcata is closer to its radar than 74% of US cities.
The closest weather station is KACV (Arcata Arpt). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Arcata
- Eureka, CA6 mi
- Fortuna, CA19 mi
- Rio Dell, CA25 mi
- Crescent City, CA63 mi
- Brookings, OR84 mi
- Shasta Lake, CA90 mi
- Redding, CA92 mi
- Yreka, CA96 mi
Elsewhere in California
Los AngelesSan DiegoSan JoseSan FranciscoFresnoSacramentoAll California forecasts →

