Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

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

Clear

48°F

9°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.78 in (1008.47 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 04 Aug 05:35 AM PDT
Extended Forecast for

9 Miles ESE Big Lagoon CA

Heat Advisory August 4, 11:00am until August 6, 11:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Patchy smoke after 2pm. Sunny, with a high near 86. North wind around 5 mph becoming west southwest in the afternoon.

    High: 86 °F

    Sunny then
    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 61. Calm wind becoming southeast around 5 mph.

    Low: 61 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke before 11am. Sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 82 °F

    Patchy Smoke
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Light and variable wind.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Patchy smoke after 2pm. Sunny, with a high near 86. North wind around 5 mph becoming west southwest in the afternoon.
Tonight
Patchy smoke. Mostly clear, with a low around 61. Calm wind becoming southeast around 5 mph.
Wednesday
Patchy smoke before 11am. Sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 59. Light and variable wind.
Thursday
Sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 57. Light and variable wind.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ESE Big Lagoon CA
 41.13°N 123.97°W (Elev. 2402 ft)
2:58 am PDT Aug 4, 2026
5am PDT Aug 4, 2026-6pm PDT Aug 10, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database