Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

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

Clear

50°F

10°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Jan 03:35 PM PST
Extended Forecast for

Arcata/Eureka Airport CA

  • Tonight

    Tonight: Patchy fog between 10pm and 1am.  Otherwise, mostly cloudy, with a low around 40. Light and variable wind.

    Low: 40 °F

    Patchy Fog

  • Thursday

    Thursday: Mostly sunny, with a high near 48. Light and variable wind.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36. Light southeast wind.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 55. Light and variable wind becoming north northwest 5 to 8 mph in the morning.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. East northeast wind around 6 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 59. East wind around 6 mph.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog between 10pm and 1am. Otherwise, mostly cloudy, with a low around 40. Light and variable wind.
Thursday
Mostly sunny, with a high near 48. Light and variable wind.
Thursday Night
Partly cloudy, with a low around 36. Light southeast wind.
Friday
Sunny, with a high near 55. Light and variable wind becoming north northwest 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 32. East northeast wind around 6 mph.
Saturday
Sunny, with a high near 59. East wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly cloudy, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
A slight chance of showers. Partly sunny, with a high near 58.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A chance of rain. Mostly cloudy, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Arcata/Eureka Airport CA
 40.97°N 124.1°W (Elev. 197 ft)
1:23 pm PST Jan 21, 2026
3pm PST Jan 21, 2026-6pm PST Jan 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database