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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Arcata / Eureka, Arcata Airport (KACV)

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

Overcast

55°F

13°C

Humidity 93%
Wind Speed WNW 5 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Sep 10:35 AM PDT
Extended Forecast for

2 Miles NNW Arcata CA

  • Today

    Today: Mostly cloudy, with a high near 64. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 64 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 8pm. Otherwise, cloudy, with a low around 51. Light north wind.

    Low: 51 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 11am. Otherwise, cloudy, with a high near 64. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 64 °F

    Patchy Fog
    then Cloudy

  • Monday Night

    Monday Night: Areas of fog after 2am. Otherwise, mostly cloudy, with a low around 52. Northwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Cloudy
    then Areas
    Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 50. North northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 67.

    High: 67 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 67.

    High: 67 °F

    Patchy Fog
    then Partly
    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 64. Calm wind becoming northwest around 6 mph in the afternoon.
Tonight
Patchy fog after 8pm. Otherwise, cloudy, with a low around 51. Light north wind.
Monday
Patchy fog before 11am. Otherwise, cloudy, with a high near 64. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Monday Night
Areas of fog after 2am. Otherwise, mostly cloudy, with a low around 52. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Tuesday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 50. North northwest wind 5 to 9 mph becoming calm in the evening.
Wednesday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 67.
Wednesday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 50.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
A slight chance of rain. Mostly cloudy, with a high near 65.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 50.
Saturday
Patchy fog. Otherwise, partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Arcata CA
 40.89°N 124.08°W (Elev. 177 ft)
Last Update:
10:05 am PDT Sep 20, 2026
Forecast Valid:
10am PDT Sep 20, 2026-6pm PDT Sep 26, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation