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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

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

Mist

61°F

16°C

Humidity 87%
Wind Speed NW 6 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 57°F (14°C)
Visibility 3.00 mi
Last update 17 Aug 10:05 AM PDT
Extended Forecast for

Arcata/Eureka Airport CA

  • Today

    Today: Mostly cloudy, with a high near 61. West northwest wind 5 to 8 mph.

    High: 61 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog between 11pm and 2am. Otherwise, mostly cloudy, with a low around 53. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Patchy Fog

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 61. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 61 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 53. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 61. West northwest wind 5 to 8 mph.
Tonight
Patchy fog between 11pm and 2am. Otherwise, mostly cloudy, with a low around 53. West northwest wind 5 to 7 mph becoming calm in the evening.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 61. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 51. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Tuesday
Partly sunny, with a high near 62. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 53. North northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arcata/Eureka Airport CA
 40.99°N 124.11°W (Elev. 39 ft)
Last Update:
10:05 pm PDT Aug 16, 2025
Forecast Valid:
10am PDT Aug 17, 2025-6pm PDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation