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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

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

Mist

35°F

2°C

Humidity 100%
Wind Speed E 6 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 35°F (2°C)
Visibility 2.00 mi
Wind Chill30°F (-1°C)
Last update 12 Jan 08:06 AM PST
Extended Forecast for

Arcata/Eureka Airport CA

  • Today

    Today: Areas of frost before 10am. Otherwise, mostly sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Areas Frost
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy frost after 4am. Otherwise, partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Partly Cloudy
    then Patchy
    Frost

  • Tuesday

    Tuesday: Patchy frost before 10am. Otherwise, mostly sunny, with a high near 56. Calm wind.

    High: 56 °F

    Patchy Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37. Light northeast wind.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58. North wind 5 to 7 mph.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 39. East northeast wind around 6 mph.

    Low: 39 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

Today
Areas of frost before 10am. Otherwise, mostly sunny, with a high near 55. Light and variable wind.
Tonight
Patchy frost after 4am. Otherwise, partly cloudy, with a low around 36. Calm wind.
Tuesday
Patchy frost before 10am. Otherwise, mostly sunny, with a high near 56. Calm wind.
Tuesday Night
Mostly clear, with a low around 37. Light northeast wind.
Wednesday
Sunny, with a high near 58. North wind 5 to 7 mph.
Wednesday Night
Clear, with a low around 39. East northeast wind around 6 mph.
Thursday
Sunny, with a high near 64.
Thursday Night
Clear, with a low around 42.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arcata/Eureka Airport CA
 40.97°N 124.1°W (Elev. 197 ft)
Last Update:
1:10 am PST Jan 12, 2026
Forecast Valid:
8am PST Jan 12, 2026-6pm PST Jan 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation