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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

4 Miles SSW Big Lagoon CA

  • Today

    Today: Mostly cloudy, with a high near 60. North northwest wind 3 to 5 mph.

    High: 60 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. Light north wind.

    Low: 51 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Partly sunny, with a high near 61. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. North wind 5 to 7 mph.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. North wind around 6 mph becoming calm.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51. North northwest wind around 6 mph becoming calm in the evening.

    Low: 51 °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 52.

    Low: 52 °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 60. North northwest wind 3 to 5 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. Light north wind.
Monday
Partly sunny, with a high near 61. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 50. North wind 5 to 7 mph.
Tuesday
Partly sunny, with a high near 62. North wind around 6 mph becoming calm.
Tuesday Night
Mostly cloudy, with a low around 51. North northwest wind around 6 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Big Lagoon CA
 41.12°N 124.15°W (Elev. 384 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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation