National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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.

Mostly Cloudy

54°F

12°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Aug 12:05 AM PDT
Extended Forecast for

2 Miles NNE Arcata/Eureka Airport CA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 67. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 67 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 49. Northwest wind around 6 mph becoming calm in the evening.

    Low: 49 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 67. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 67 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 50. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 50 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 71.

    High: 71 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 49. Calm wind.
Monday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 67. Calm wind becoming west 5 to 8 mph in the afternoon.
Monday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 49. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 67. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Tuesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 50. West northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 69. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Wednesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 51.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 71.
Friday Night
Mostly cloudy, with a low around 53.
Saturday
Patchy fog. Otherwise, partly sunny, with a high near 71.
Saturday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 53.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Arcata/Eureka Airport CA
 41.02°N 124.09°W (Elev. 276 ft)
Last Update:
12:11 am PDT Aug 18, 2025
Forecast Valid:
12am PDT Aug 18, 2025-6pm PDT Aug 24, 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