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Areas of Dangerous Heat and Heavy Rainfall Today

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley today. Heat Advisories remain in effect. Heavy to excessive rainfall today could bring areas of flooding to parts of the northern High Plains and Midwest into the Ohio Valley. Flood Watches remain in effect. Read More >

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

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

Overcast

58°F

14°C

Humidity 83%
Wind Speed WSW 4 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 20 Sep 03:53 PM PDT
Extended Forecast for

4 Miles SSW Arcata/Eureka Airport CA

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, cloudy, with a low around 52. North northwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Cloudy then
    Patchy Fog

  • Monday

    Monday: Cloudy, with a high near 62. Calm wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 62 °F

    Cloudy

  • Monday Night

    Monday Night: Patchy fog after 2am. Otherwise, cloudy, with a low around 52. North northwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 63. Light north northwest wind increasing to 5 to 10 mph in the afternoon.

    High: 63 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51. North northwest wind 6 to 11 mph becoming light north northeast after midnight.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. Light north wind becoming north northwest 5 to 10 mph in the afternoon.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, cloudy, with a low around 52. North northwest wind around 5 mph becoming calm in the evening.
Monday
Cloudy, with a high near 62. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
Monday Night
Patchy fog after 2am. Otherwise, cloudy, with a low around 52. North northwest wind around 6 mph becoming calm in the evening.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 63. Light north northwest wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 51. North northwest wind 6 to 11 mph becoming light north northeast after midnight.
Wednesday
Partly sunny, with a high near 64. Light north wind becoming north northwest 5 to 10 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly cloudy, with a high near 64.
Thursday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 53.
Friday
A slight chance of rain before 11am. Mostly cloudy, with a high near 62.
Friday Night
Partly cloudy, with a low around 50. Breezy.
Saturday
Partly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Arcata/Eureka Airport CA
 40.93°N 124.12°W (Elev. 3 ft)
Last Update:
2:10 pm PDT Sep 20, 2026
Forecast Valid:
4pm PDT Sep 20, 2026-6pm PDT Sep 27, 2026
 
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Additional Resources

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Chance of Precipitation