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 N 0 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 18 Sep 03:00 AM PDT
Extended Forecast for

Arcata/Eureka Airport CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 63. Light north wind becoming north northwest 6 to 11 mph in the afternoon.

    High: 63 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 53. North northwest wind 6 to 11 mph becoming light north after midnight.

    Low: 53 °F

    Mostly Cloudy

  • Saturday

    Saturday: Patchy fog between 8am and 11am. Otherwise, mostly cloudy, with a high near 62. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 53. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 62. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 53.

    Low: 53 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog before 11pm, then patchy fog after 2am. Otherwise, partly cloudy, with a low around 53.

    Low: 53 °F

    Patchy Fog

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. Calm wind.
Friday
Partly sunny, with a high near 63. Light north wind becoming north northwest 6 to 11 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 53. North northwest wind 6 to 11 mph becoming light north after midnight.
Saturday
Patchy fog between 8am and 11am. Otherwise, mostly cloudy, with a high near 62. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Saturday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 53. North northwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 62. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 53.
Monday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 63.
Monday Night
Patchy fog before 11pm, then patchy fog after 2am. Otherwise, partly cloudy, with a low around 53.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arcata/Eureka Airport CA
 40.99°N 124.11°W (Elev. 39 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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