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Arcata, CA Weather

Live radar, hourly and 7-day forecast, and National Weather Service alerts for Arcata, Humboldt County, California.

Updated Jul 29, 2026, 1:42 PM local time · Radar refreshes every 5 minutes

☁️
Arcata
Overcast
63°F
Feels like 65°F
Wind 4 mph
Humidity 89%
Cloud cover 100%
UV index 7
Alerts 1

Active alerts (1)

Beach Hazards StatementModerate
Southwestern Humboldt; Coastal Mendocino
Until Jul 30, 2026, 12:00 AM
Full details
* WHAT...Increased threat of sneaker waves expected.

* WHERE...Southwestern Humboldt and Coastal Mendocino Counties.

* WHEN...Through Wednesday afternoon. .

* IMPACTS...Large, unexpected waves can sweep across the beach
without warning, sweeping people into the sea from rocks,
jetties, and beaches. These sneaker waves can also move large
objects such as logs, crushing anyone caught underneath.

Don't be fooled by an ocean that looks calm.  There can be
30 minutes of small waves before a sneaker wave strikes.  Avoid
rocks and jetties. Avoid steep beaches.  Stay much farther back
from the water and never turn your back on the ocean.

Arcata weather radar

Light Heavy

Next 24 hours

Now
☁️
62°F
 
2 PM
☁️
63°F
 
3 PM
65°F
 
4 PM
🌤️
65°F
 
5 PM
☀️
65°F
 
6 PM
☀️
64°F
 
7 PM
☀️
62°F
 
8 PM
☀️
60°F
 
9 PM
☀️
57°F
 
10 PM
☀️
56°F
 
11 PM
☀️
55°F
 
12 AM
☀️
54°F
 
1 AM
☀️
53°F
 
2 AM
☀️
52°F
 
3 AM
☀️
51°F
 
4 AM
51°F
 
5 AM
☁️
53°F
 
6 AM
☁️
54°F
 
7 AM
☁️
54°F
 
8 AM
☁️
56°F
 
9 AM
58°F
 
10 AM
61°F
 
11 AM
🌤️
62°F
 
12 PM
☀️
64°F
 

7-day forecast

Today
Jul 29
🌫️
65°F
55°F
1%
Thu
Jul 30
☁️
66°F
51°F
Fri
Jul 31
☁️
77°F
51°F
Sat
Aug 1
☁️
74°F
53°F
1%
Sun
Aug 2
☁️
72°F
54°F
1%
Mon
Aug 3
☀️
77°F
54°F
Tue
Aug 4
☀️
81°F
59°F

Weather near Arcata

2 mi Bayside, CA6 mi Eureka, CA6 mi McKinleyville, CA91 mi Redding, CA115 mi Grants Pass, OR116 mi Ashland, OR119 mi Medford, OR120 mi Central Point, OR
Alerts are relayed from the National Weather Service and may lag the official source. In a life-threatening situation always follow weather.gov and local emergency broadcasts.