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1 active weather alert

  • Frost Advisory

    Ends in 35 min

    When
    Until 9 AM PDT this morning.
    Where
    Del Norte and Northern Humboldt Coast. This is expected to be mainly away from the immediate coast and in areas that go calm.

    Issued for this forecast zone · National Weather Service Eureka CA

    What, impacts and precautions

    What

    Temperatures as low as 35 will result in frost formation.

    Impacts

    Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

    Precautionary actions

    Take steps now to protect tender plants from the cold.

    Areas: Coastal Del Norte; Northern Coastal Humboldt

    See it on weather.gov (opens in a new tab)

Observed 8:00 AM PDT at KACV

Big Lagoon, CA weather

Sunny and 36°2°.

Today: low 38°3° (likely 38°3° to 44°7°), high 57°14° (likely 57°14° to 65°18°).

Forecasts differ

Now 36°2°

Sunny

Wind
Calm
Up to 9 mph14 km/h through 8 PM
Dew point
36°2°
Comfortable · up to 45°7° by 1 PM
Humidity
100%
Air 36°2°, dew point 36°2° · frost likely
UV index
0Low
Moderate 11 AM–5 PM · peak 4
Air quality
14Good
Main pollutant: PM10 (dust)
Pressure
30.09 inHg1019 hPa
Falling slowly · −0.02 inHg−0.7 hPa in 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

Good hours for
  • Above 50°10° today by noon
  • High 56°13° today at 4 PM
  • Below 50°10° tonight after 7 PM
  • Rain tomorrow from 5 PM (70%, 0.7 in18 mm)
  1. This morningUp to 47°8° by 11 AM · Clear
  2. This afternoonUp to 56°13° by 4 PM · Partly cloudy
  3. TonightDown to 39°4° by 4 AM · Mostly cloudy
  4. Tomorrow morningUp to 46°8° by 11 AM · Mostly cloudy
  5. Tomorrow afternoonUp to 54°12° by 3 PM · Rain 5–6 PM (40%)
  6. Tomorrow nightDown to 44°7° by 3 AM · Rain all night (70%)
Hourly forecast, next 47 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 8aMostly sunny38°3° (likely 38°3° to 49°9°)34°1°0%7 mph11 km/h from NNW, gusts 7 mph11 km/h78%13%0
Sat 9aMostly sunny39°4° (likely 39°4° to 50°10°)35°2°0%7 mph11 km/h from NNW, gusts 7 mph11 km/h78%18%1
Sat 10aSunny44°7° (likely 44°7° to 56°13°)41°5°0%7 mph11 km/h from NNW, gusts 6 mph10 km/h76%10%2
Sat 11aSunny47°8° (likely 47°8° to 62°17°)47°8°0%8 mph13 km/h from NNW, gusts 7 mph12 km/h73%9%3
Sat 12pSunny52°11° (likely 52°11° to 64°18°)52°11°0%8 mph13 km/h from NNW, gusts 8 mph14 km/h68%39%4
Sat 1pSunny54°12° (likely 54°12° to 65°18°)54°12°0%8 mph13 km/h from NNW, gusts 10 mph16 km/h68%42%4
Sat 2pSunny55°13° (likely 55°13° to 64°18°)55°13°0%9 mph14 km/h from NNW, gusts 11 mph17 km/h68%42%4
Sat 3pSunny55°13° (likely 55°13° to 63°17°)55°13°0%9 mph14 km/h from NNW, gusts 11 mph18 km/h68%42%4
Sat 4pSunny56°13° (likely 56°13° to 61°16°)56°13°0%9 mph14 km/h from NNW, gusts 12 mph19 km/h72%41%3
Sat 5pSunny53°12° (likely 53°12° to 58°14°)53°12°0%7 mph11 km/h from NNW, gusts 11 mph17 km/h79%40%1
Sat 6pClear51°11° (likely 51°11° to 55°13°)51°11°0%7 mph11 km/h from NNW, gusts 9 mph15 km/h85%40%1
Sat 7pClear49°9° (likely 49°9° to 52°11°)48°9°0%7 mph11 km/h from NNW, gusts 7 mph12 km/h90%40%0
Sat 8pClear47°8° (likely 47°8° to 50°10°)47°8°0%2 mph3 km/h from NW, gusts 6 mph10 km/h95%41%0
Sat 9pMostly cloudy45°7° (likely 45°7° to 49°9°)45°7°0%2 mph3 km/h from NW, gusts 5 mph8 km/h97%50%0
Sat 10pCloudy44°7° (likely 44°7° to 49°9°)44°7°0%2 mph3 km/h from NW, gusts 5 mph7 km/h96%70%0
Sat 11pCloudy44°7° (likely 44°7° to 47°8°)44°7°0%3 mph5 km/h from WSW, gusts 5 mph9 km/h97%74%0
Sun 12aCloudy43°6° (likely 43°6° to 47°8°)43°6°0%3 mph5 km/h from WSW, gusts 6 mph10 km/h96%86%0
Sun 1aCloudy43°6° (likely 43°6° to 47°8°)43°6°0%3 mph5 km/h from WSW, gusts 6 mph10 km/h98%87%0
Sun 2aCloudy42°6° (likely 42°6° to 47°8°)42°6°0%2 mph3 km/h from NE, gusts 6 mph10 km/h98%87%0
Sun 3aCloudy40°4° (likely 40°4° to 46°8°)40°4°0%2 mph3 km/h from NE, gusts 6 mph9 km/h98%79%0
Sun 4aCloudy39°4° (likely 39°4° to 46°8°)39°4°0%2 mph3 km/h from NE, gusts 6 mph10 km/h98%67%0
Sun 5aCloudy39°4° (likely 39°4° to 46°8°)39°4°0%2 mph3 km/h from E, gusts 8 mph12 km/h98%58%0
Sun 6aCloudy39°4° (likely 39°4° to 46°8°)39°4°0%2 mph3 km/h from E, gusts 7 mph11 km/h94%58%0
Sun 7aCloudy39°4° (likely 39°4° to 46°8°)39°4°0%2 mph3 km/h from E, gusts 6 mph10 km/h94%68%0
Sun 8aCloudy39°4° (likely 39°4° to 47°8°)37°3°0%3 mph5 km/h from ESE, gusts 6 mph9 km/h96%73%0
Sun 9aCloudy41°5° (likely 41°5° to 49°9°)39°4°0%3 mph5 km/h from ESE, gusts 6 mph9 km/h96%78%0
Sun 10aCloudy43°6° (likely 43°6° to 54°12°)42°6°0%3 mph5 km/h from ESE, gusts 6 mph10 km/h95%79%1
Sun 11aCloudy46°8° (likely 46°8° to 58°14°)46°8°5%2 mph3 km/h from S, gusts 7 mph11 km/h93%80%2
Sun 12pCloudy49°9° (likely 49°9° to 59°15°)49°9°5%2 mph3 km/h from S, gusts 7 mph11 km/h89%80%3
Sun 1pCloudy51°11° (likely 51°11° to 59°15°)51°11°5%2 mph3 km/h from S, gusts 7 mph11 km/h85%80%3
Sun 2pCloudy53°12° (likely 53°12° to 59°15°)53°12°5%3 mph5 km/h from WSW, gusts 8 mph12 km/h82%80%3
Sun 3pPartly sunny54°12° (likely 54°12° to 59°15°)54°12°5%3 mph5 km/h from WSW, gusts 7 mph10 km/h82%63%3
Sun 4pSunny53°12° (likely 53°12° to 59°15°)53°12°5%3 mph5 km/h from WSW, gusts 7 mph12 km/h85%26%2
Sun 5pSunny52°11° (likely 52°11° to 58°14°)52°11°40%, 0.01 in0.3 mm2 mph3 km/h from SSW, gusts 10 mph16 km/h88%11%1
Sun 6pRain51°11° (likely 51°11° to 56°13°)51°11°40%, 0.01 in0.3 mm2 mph3 km/h from SSW, gusts 11 mph18 km/h92%46%0
Sun 7pRain49°9° (likely 49°9° to 55°13°)49°9°40%, 0.01 in0.3 mm2 mph3 km/h from SSW, gusts 13 mph21 km/h95%56%0
Sun 8pCloudy48°9° (likely 48°9° to 55°13°)47°8°40%, 0.01 in0.3 mm3 mph5 km/h from S, gusts 16 mph26 km/h98%64%0
Sun 9pDrizzle47°8° (likely 47°8° to 55°13°)46°8°40%, 0.01 in0.3 mm3 mph5 km/h from S, gusts 17 mph28 km/h99%79%0
Sun 10pRain47°8° (likely 47°8° to 55°13°)46°8°40%, 0.01 in0.3 mm3 mph5 km/h from S, gusts 19 mph30 km/h99%80%0
Sun 11pRain47°8° (likely 47°8° to 54°12°)44°7°70%, 0.09 in2.3 mm6 mph10 km/h from SSE, gusts 15 mph24 km/h99%100%0
Mon 12aRain46°8° (likely 46°8° to 54°12°)44°7°70%, 0.09 in2.3 mm6 mph10 km/h from SSE, gusts 12 mph19 km/h99%99%0
Mon 1aDrizzle46°8° (likely 46°8° to 53°12°)43°6°70%, 0.09 in2.3 mm6 mph10 km/h from SSE, gusts 12 mph20 km/h99%96%0
Mon 2aRain45°7° (likely 45°7° to 53°12°)42°6°70%, 0.09 in2.3 mm6 mph10 km/h from SSE, gusts 10 mph17 km/h99%94%0
Mon 3aRain44°7° (likely 44°7° to 52°11°)41°5°70%, 0.09 in2.3 mm6 mph10 km/h from SSE, gusts 11 mph17 km/h99%81%0
Mon 4aRain44°7° (likely 44°7° to 52°11°)40°4°70%, 0.09 in2.3 mm6 mph10 km/h from SSE, gusts 11 mph18 km/h100%85%0
Mon 5aClear44°7° (likely 44°7° to 51°11°)40°4°70%, 0.05 in1.3 mm6 mph10 km/h from SSE, gusts 12 mph20 km/h100%67%0
Mon 6aRain44°7° (likely 44°7° to 52°11°)40°4°70%, 0.05 in1.3 mm6 mph10 km/h from SSE, gusts 12 mph20 km/h100%74%0

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Partly sunny. High 57°14°, low 38°3°. Typical 63°17° / 44°7°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 38°3°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 56°13°

      Dry

    3. Evening

      6 PM–midnight

      Mostly cloudy, 47°8°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 39°4°

      Dry

    Official NWS forecast

    Today: Mostly sunny. High near 57, with temperatures falling to around 53 in the afternoon. North wind around 9 mph.

    Tonight: Mostly cloudy, with a low around 38. North wind 2 to 7 mph.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    57°14°–65°18°
    Low, likely
    38°3°–44°7°
    Typical high / low
    63°17° / 44°7°
    Wind
    9 mph14 km/h, gusts 15 mph24 km/h
    UV peak
    4
  2. Tomorrow, Oct 25. Rain. High 54°12°, low 42°6°. Typical 62°17° / 44°7°. Rain 0.11 in2.8 mm, 40% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 39°4°

      Dry

    2. Afternoon

      noon–6 PM

      Partly sunny, 54°12°

      40% chance · 0.01 in0.3 mm

    3. Evening

      6 PM–midnight

      Rain, 48°9°

      70% chance · 0.14 in3.6 mm

    4. Overnight

      midnight–6 AM

      Rain, 44°7°

      70% chance · 0.5 in13 mm

    Official NWS forecast

    Day: A chance of rain after 5pm. Mostly cloudy, with a high near 54. South wind around 3 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

    Night: Rain likely. Mostly cloudy, with a low around 42. South wind 2 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    54°12°–60°16°
    Low, likely
    42°6°–46°8°
    Typical high / low
    62°17° / 44°7°
    Wind
    12 mph19 km/h, gusts 23 mph37 km/h
    UV peak
    3
  3. Monday, Oct 26. Rain. High 53°12°, low 40°4°. Typical 62°17° / 44°7°. Rain 0.23 in5.8 mm, 70% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Rain, 51°10°

      80% chance · 0.13 in3.2 mm

    2. Afternoon

      noon–6 PM

      Drizzle, 56°14°

      60% chance · 0.03 in0.9 mm

    3. Evening

      6 PM–midnight

      Drizzle, 50°10°

      30% chance

    4. Overnight

      midnight–6 AM

      Partly cloudy, 46°8°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Rain likely before 11am, then showers and thunderstorms likely. Mostly cloudy, with a high near 53. South wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

    Night: A chance of showers and thunderstorms before 11pm, then a chance of rain between 11pm and 5am. Mostly cloudy, with a low around 40. East southeast wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    53°12°–58°14°
    Low, likely
    40°4°–49°9°
    Typical high / low
    62°17° / 44°7°
    Wind
    11 mph18 km/h, gusts 21 mph34 km/h
    UV peak
    1
  4. Tuesday, Oct 27. Mostly cloudy. High 53°12°, low 39°4°. Typical 62°17° / 44°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 45°7°

      Dry

    2. Afternoon

      noon–6 PM

      Drizzle, 58°14°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 51°10°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 47°8°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Partly sunny, with a high near 53.

    Night: Mostly cloudy, with a low around 39.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    53°12°–59°15°
    Low, likely
    39°4°–46°8°
    Typical high / low
    62°17° / 44°7°
    Wind
    10 mph15 km/h, gusts 24 mph38 km/h
    UV peak
    3
  5. Wednesday, Oct 28. Fog. High 54°12°, low 40°4°. Typical 62°17° / 44°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 45°7°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 58°14°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 47°9°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 46°8°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Patchy fog between 11am and 2pm. Partly sunny, with a high near 54.

    Night: Patchy fog between 8pm and 11pm. Mostly cloudy, with a low around 40.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    54°12°–60°16°
    Low, likely
    40°4°–46°8°
    Typical high / low
    62°17° / 44°7°
    Wind
    9 mph14 km/h, gusts 17 mph27 km/h
    UV peak
    4
  6. Thursday, Oct 29. Mostly cloudy. High 54°12°, low 41°5°. Typical 62°17° / 44°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 44°7°

      20% chance

    2. Afternoon

      noon–6 PM

      Sunny, 56°13°

      30% chance

    3. Evening

      6 PM–midnight

      Clear, 46°8°

      30% chance

    4. Overnight

      midnight–6 AM

      Clear, 42°6°

      20% chance · 0.02 in0.5 mm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Partly sunny, with a high near 54.

    Night: A slight chance of rain after 11pm. Mostly cloudy, with a low around 41.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    53°12°–58°14°
    Low, likely
    41°5°–45°7°
    Typical high / low
    62°17° / 44°7°
    Wind
    8 mph13 km/h, gusts 22 mph36 km/h
    UV peak
    4
  7. Friday, Oct 30. Rain. High 54°12°, low 42°6°. Typical 62°17° / 44°7°. Rain 0.18 in4.6 mm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 43°6°

      20% chance · 0.02 in0.6 mm

    2. Afternoon

      noon–6 PM

      Sunny, 54°12°

      30% chance · 0.11 in2.7 mm

    3. Evening

      6 PM–midnight

      Mostly clear, 45°7°

      30% chance · 0.08 in2 mm

    4. Overnight

      midnight–6 AM

      Clear, 40°4°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A slight chance of rain. Partly sunny, with a high near 54.

    Night: A slight chance of rain before 8pm. Mostly cloudy, with a low around 42.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    50°10°–57°14°
    Low, likely
    38°3°–43°6°
    Typical high / low
    62°17° / 44°7°
    Wind
    10 mph16 km/h, gusts 24 mph39 km/h
    UV peak
    4
  8. Saturday, Oct 31. Cloudy. High 55°13°, low 40°4°. Typical 61°16° / 44°7°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 41°5°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 56°13°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 47°8°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 40°5°

      Dry

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    51°11°–62°17°
    Low, likely
    35°2°–42°6°
    Typical high / low
    61°16° / 44°7°
    Wind
    8 mph14 km/h, gusts 16 mph25 km/h
    UV peak
    3
  9. Sunday, Nov 1. Partly sunny. High 60°16°, low 40°4°. Typical 61°16° / 43°6°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Mostly sunny, 42°5°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 61°16°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 49°9°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 45°7°

      Dry

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    51°11°–73°23°
    Low, likely
    36°2°–44°7°
    Typical high / low
    61°16° / 43°6°
    Wind
    7 mph11 km/h, gusts 20 mph32 km/h
    UV peak
    4
  10. Monday, Nov 2. Cloudy. High 59°15°, low 44°7°. Typical 61°16° / 43°6°. Rain 0.38 in9.7 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 49°10°

      20% chance · 0.09 in2.2 mm

    2. Afternoon

      noon–6 PM

      Cloudy, 62°16°

      30% chance · 0.23 in5.8 mm

    3. Evening

      6 PM–midnight

      Mostly clear, 47°8°

      30% chance · 0.1 in2.5 mm

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    48°9°–72°22°
    Low, likely
    38°3°–47°8°
    Typical high / low
    61°16° / 43°6°
    Wind
    9 mph14 km/h, gusts 21 mph33 km/h
    UV peak
    3

The outlook

  1. Today

    Dry, high 57°, low 38°.

  2. Tomorrow

    41% chance of rain, high 54°, low 42°, cooling off.

  3. Monday

    67% chance of rain, high 53°, low 40°.

  4. Rest of week

    Mostly dry, highs 53–60°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (EKA) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Redwood Creek near Orick

11 mi
Below flood stage
Level
10.2 ft
Flow
7 cfs

Forecast peak 10.4 ft Tue 10 AM

Reading from Sat 7:15 AM · NWS gauge page

Mad River near Arcata

18 mi
Below flood stage
Level
5.7 ft
Flow
53 cfs

Forecast peak 5.7 ft Tue 2 AM

Reading from Sat 6:45 AM · NWS gauge page

Trinity River at Hoopa

25 mi
Below flood stage
Level
11.2 ft
Flow
639 cfs

Forecast peak 11.0 ft Sat 8 AM

Reading from Sat 7 AM · NWS gauge page

Little River near Trinidad

11 mi
Level
1.5 ft
Flow
6 cfs

Reading from Sat 7:30 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 58% less heating than a typical week.

This week 35Typical 84

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
29
h below 17°F
0
h below 5°F
0

47, 17 and 5°F are the test points heat pumps are rated at. About 8 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Arcata Eureka Airport · official normals 1991–2020 · records 1945–2026

Oct 24, today vs a typical year

Today’s expected high is 6°3° colder than typical.

Normal high / low
63°17° / 44°7°
Forecast high / low
57°14° / 38°3°
Record high
89°32° in 2019
Record low
34°1° in 2001

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

  1. −2°−1°SunOct 18
  2. −1°MonOct 19
  3. −1°TueOct 20
  4. ±0°WedOct 21
  5. −2°−1°ThuOct 22
  6. −4°−2°FriOct 23
  7. —SatOct 24

Big Lagoon weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:38 AM, sunset 6:22 PM.

Daylight
10 h 44 min
Losing 2 min 35 s a day; shortest Dec 21, 1 h 31 min less
Golden hour
5:43–6:39 PM
Morning 7:21–8:16 AM
Blue hour
6:39–6:50 PM
Morning 7:10–7:21 AM; first light 7:10 AM

Stars tonight? Poor

Clouds most of the night (about 65% cover).

Moon

Waxing gibbous

97% lit · growing

Today
sets 5:58 AM · rises 5:22 PM
Full moon
Oct 25
New moon
Nov 8
Looking northwest from Big Lagoon. The highest point on the skyline is about 4,200 ft, 27 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.