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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

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

Mist

55°F

13°C

Humidity 100%
Wind Speed SW 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 55°F (13°C)
Visibility 5.00 mi
Last update 19 Aug 11:35 PM PDT
Extended Forecast for

Arcata/Eureka Airport CA

  • Tonight

    Tonight: Patchy fog. Otherwise, cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Patchy Fog

  • Thursday

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

    High: 62 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 52. Northwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 61. Calm wind becoming west around 6 mph in the afternoon.

    High: 61 °F

    Areas Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming calm in the evening.

    Low: 51 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 11am. Otherwise, partly sunny, with a high near 62. Light north wind becoming northwest 5 to 10 mph in the afternoon.

    High: 62 °F

    Areas Fog
    then Mostly
    Sunny

  • Saturday Night

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

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog. Otherwise, cloudy, with a low around 53. Calm wind.
Thursday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 62. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Thursday Night
Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 52. Northwest wind around 6 mph becoming calm in the evening.
Friday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 61. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming calm in the evening.
Saturday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 62. Light north wind becoming northwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
Mostly cloudy, with a high near 64.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 53.
Tuesday
Patchy fog. Otherwise, mostly cloudy, with a high near 63.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 53.
Wednesday
Patchy fog. Otherwise, mostly cloudy, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arcata/Eureka Airport CA
 40.97°N 124.1°W (Elev. 197 ft)
Last Update:
2:46 pm PDT Aug 19, 2026
Forecast Valid:
11pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026
 
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Additional Resources

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Chance of Precipitation