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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

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

Overcast

59°F

15°C

Humidity 87%
Wind Speed NNE 3 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 18 Sep 03:35 AM PDT
Extended Forecast for

3 Miles SSW Big Lagoon CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 60. North northwest wind 5 to 9 mph.

    High: 60 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 51. North wind 5 to 9 mph becoming light after midnight.

    Low: 51 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 59. Calm wind becoming north northwest 5 to 8 mph in the afternoon.

    High: 59 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Mostly cloudy, with a high near 60. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 60 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Monday Night

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

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 53. Calm wind.
Friday
Mostly cloudy, with a high near 60. North northwest wind 5 to 9 mph.
Friday Night
Mostly cloudy, with a low around 51. North wind 5 to 9 mph becoming light after midnight.
Saturday
Mostly cloudy, with a high near 59. Calm wind becoming north northwest 5 to 8 mph in the afternoon.
Saturday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. North northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly cloudy, with a high near 60. Calm wind becoming north northwest around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Mostly cloudy, with a high near 61.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly cloudy, with a high near 61.
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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:
2:10 am PDT Sep 18, 2026
Forecast Valid:
3am PDT Sep 18, 2026-6pm PDT Sep 24, 2026
 
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Additional Resources

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Chance of Precipitation