Arcata Bay Weather Forecast
- 51
- 58
Mostly Cloudy
- 51
- 58
Mostly Cloudy
- 50
- 57
Rain Showers
- 49
- 54
Chance Rain Showers
- 49
- 54
Partly Sunny
- 51
- 55
Mostly Cloudy
- 49
- 54
Mostly Cloudy
Today 23 May Northern Humboldt Coast
Mostly cloudy. Patchy fog in the morning. Highs 56 to 68. West wind around 10 Mph.
Tonight 23 May Northern Humboldt Coast
Mostly cloudy. Patchy fog. Lows 45 to 55. West wind around 5 Mph in the evening becoming light.
Arcata Bay Temperature Statistics
May Temperature
Arcata / Eureka, Arcata Airport (9.3 miles)
Lowest 18 May, 2026
39.7 °FAverage May
53.9 °FHighest 10 May, 2026
62.7 °F
Climate (2021–Present)
Arcata / Eureka, Arcata Airport (9.3 miles)
Average Low 2021–2026
45.7 °FAverage 2021–2026
52.5 °FAverage High 2021–2026
59.6 °F