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.

Overcast

61°F

16°C

Humidity 87%
Wind Speed WNW 8 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Aug 04:35 PM PDT
Extended Forecast for

3 Miles SSW Big Lagoon CA

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. North wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 60. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51. North wind around 7 mph.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 60. North wind 3 to 7 mph.

    High: 60 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 61. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. North wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 60. Calm wind becoming north northwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 51. North wind around 7 mph.
Tuesday
Partly sunny, with a high near 60. North wind 3 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 51. North northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 61. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 61.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Big Lagoon CA
 41.14°N 124.15°W (Elev. 0 ft)
Last Update:
11:35 am PDT Aug 17, 2025
Forecast Valid:
4pm PDT Aug 17, 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

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High Temperature

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Chance of Precipitation