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.

Mist

61°F

16°C

Humidity 87%
Wind Speed NNW 5 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 57°F (14°C)
Visibility 4.00 mi
Last update 17 Aug 10:35 AM PDT
Extended Forecast for

2 Miles S Arcata/Eureka Airport CA

  • Today

    Today: Mostly cloudy, with a high near 63. West northwest wind 5 to 7 mph.

    High: 63 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 64. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog between 2am and 5am. Otherwise, partly cloudy, with a low around 50. Northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 50 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

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

    Low: 50 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 66.

    High: 66 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

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

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 63. West northwest wind 5 to 7 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming calm in the evening.
Monday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 64. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Monday Night
Patchy fog between 2am and 5am. Otherwise, partly cloudy, with a low around 50. Northwest wind 5 to 9 mph becoming calm in the evening.
Tuesday
Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tuesday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 50. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 67.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Arcata/Eureka Airport CA
 40.95°N 124.1°W (Elev. 187 ft)
Last Update:
10:05 pm PDT Aug 16, 2025
Forecast Valid:
10am PDT Aug 17, 2025-6pm PDT Aug 23, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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