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 SSW 4 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 55°F (13°C)
Visibility 4.00 mi
Last update 19 Aug 11:00 PM PDT
Extended Forecast for

Big Lagoon CA

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, cloudy, with a high near 60. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 60 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Patchy fog after 11pm. Otherwise, cloudy, with a low around 52. North northwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, cloudy, with a high near 59. Light and variable wind.

    High: 59 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Cloudy, with a low around 51. Light and variable wind.

    Low: 51 °F

    Cloudy

  • Saturday

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

    High: 60 °F

    Mostly Cloudy

  • Saturday Night

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

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, cloudy, with a low around 52. Light and variable wind.
Thursday
Patchy fog before 8am. Otherwise, cloudy, with a high near 60. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Patchy fog after 11pm. Otherwise, cloudy, with a low around 52. North northwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, cloudy, with a high near 59. Light and variable wind.
Friday Night
Cloudy, with a low around 51. Light and variable wind.
Saturday
Mostly cloudy, with a high near 60. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Mostly cloudy, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 53.
Monday
Mostly cloudy, with a high near 61.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Mostly cloudy, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Mostly cloudy, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Big Lagoon CA
 41.17°N 124.13°W (Elev. 7 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