Frost Advisory
Ends in 5 h 29 min
When
From 1 AM to 9 AM PDT Saturday.
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 precautionsHide details
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: Interior Del Norte; Southwestern Humboldt; Northeastern Interior Humboldt; Southeastern Interior Humboldt
See it on weather.gov (opens in a new tab)

Observed 2:55 AM PDT at KACV

Willow Creek, CA weather

Clear and 39°4°.

Forecasts differ

Now 39°4°

Clear

Wind: Calm; Up to 5 mph8 km/h through 3 PM
Dew point: 39°4°; Comfortable · down to 30°−1° by 7 AM (dry)
Humidity: 100%; Air 39°4°, dew point 39°4° · fog or dew likely
UV index: 0Low; Moderate 12–4 PM · peak 4
Pressure: 30.11 inHg1020 hPa; Falling slowly · −0.02 inHg−0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 36°2° today at 7 AM
Above 50°10° today by 11 AM
High 73°23° today at 4 PM
Below 60°16° tonight after 8 PM
Rain tomorrow night from 11 PM (50%)

TonightNear 39°4° · Clear
This morningUp to 54°12° by 11 AM · Clear
This afternoonUp to 73°23° by 4 PM · Partly cloudy
TonightDown to 40°4° by 5 AM · Partly cloudy
Tomorrow morningUp to 55°13° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 68°20° by 3 PM · rain chance 20% · Mostly cloudy
Tomorrow nightDown to 45°7° by 2 AM · Rain 11 PM–3 AM (50%)

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 3a	Clear	40°4° (likely 37°3° to 50°10°)	38°3°	0%	3 mph5 km/h from SE, gusts 5 mph8 km/h	80%	8%	0
Sat 4a	Clear	39°4° (likely 36°2° to 50°10°)	37°3°	0%	3 mph5 km/h from SE, gusts 4 mph7 km/h	78%	8%	0
Sat 5a	Clear	38°3° (likely 36°2° to 50°10°)	35°2°	0%	5 mph8 km/h from SE, gusts 5 mph7 km/h	80%	1%	0
Sat 6a	Clear	37°3° (likely 35°2° to 50°10°)	34°1°	0%	5 mph8 km/h from SE, gusts 4 mph7 km/h	80%	2%	0
Sat 7a	Clear	36°2° (likely 35°2° to 50°10°)	32°0°	0%	5 mph8 km/h from SE, gusts 4 mph6 km/h	80%	3%	0
Sat 8a	Sunny	37°3° (likely 35°2° to 49°9°)	37°3°	0%	2 mph3 km/h from ESE, gusts 4 mph6 km/h	81%	3%	0
Sat 9a	Sunny	40°4° (likely 40°4° to 50°10°)	40°4°	0%	2 mph3 km/h from ESE, gusts 4 mph7 km/h	77%	7%	0
Sat 10a	Sunny	48°9° (likely 48°9° to 56°13°)	48°9°	0%	2 mph3 km/h from ESE, gusts 4 mph6 km/h	50%	35%	1
Sat 11a	Sunny	54°12° (likely 53°12° to 60°16°)	54°12°	0%	2 mph3 km/h from ENE, gusts 6 mph9 km/h	40%	4%	2
Sat 12p	Sunny	59°15° (likely 58°14° to 65°18°)	59°15°	0%	2 mph3 km/h from ENE, gusts 7 mph11 km/h	34%	43%	3
Sat 1p	Sunny	66°19° (likely 62°17° to 69°21°)	66°19°	0%	2 mph3 km/h from ENE, gusts 6 mph9 km/h	29%	43%	4
Sat 2p	Sunny	70°21° (likely 64°18° to 72°22°)	70°21°	0%	2 mph3 km/h from NNE, gusts 5 mph8 km/h	24%	41%	3
Sat 3p	Sunny	72°22° (likely 66°19° to 73°23°)	72°22°	0%	2 mph3 km/h from NNE, gusts 5 mph8 km/h	24%	42%	3
Sat 4p	Sunny	73°23° (likely 65°18° to 74°23°)	73°23°	0%	2 mph3 km/h from NNE, gusts 5 mph8 km/h	25%	41%	2
Sat 5p	Sunny	71°22° (likely 63°17° to 72°22°)	71°22°	0%	0 mph0 km/h, gusts 5 mph8 km/h	31%	37%	2
Sat 6p	Clear	67°19° (likely 57°14° to 67°19°)	67°19°	0%	0 mph0 km/h, gusts 5 mph8 km/h	38%	38%	0
Sat 7p	Mostly clear	63°17° (likely 53°12° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 5 mph8 km/h	43%	42%	0
Sat 8p	Clear	56°13° (likely 50°10° to 59°15°)	56°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	51%	42%	0
Sat 9p	Partly cloudy	54°12° (likely 47°8° to 58°14°)	54°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	56%	33%	0
Sat 10p	Partly cloudy	51°11° (likely 46°8° to 57°14°)	51°11°	0%	0 mph0 km/h, gusts 4 mph6 km/h	60%	65%	0
Sat 11p	Partly cloudy	49°9° (likely 44°7° to 56°13°)	49°9°	0%	2 mph3 km/h from SE, gusts 3 mph5 km/h	62%	71%	0
Sun 12a	Partly cloudy	47°8° (likely 43°6° to 54°12°)	47°8°	0%	2 mph3 km/h from SE, gusts 3 mph4 km/h	64%	75%	0
Sun 1a	Partly cloudy	45°7° (likely 42°6° to 54°12°)	45°7°	0%	2 mph3 km/h from SE, gusts 3 mph4 km/h	68%	76%	0
Sun 2a	Partly cloudy	44°7° (likely 41°5° to 53°12°)	44°7°	0%	1 mph2 km/h from SE, gusts 2 mph4 km/h	69%	74%	0
Sun 3a	Partly cloudy	42°6° (likely 40°4° to 52°11°)	42°6°	0%	1 mph2 km/h from SE, gusts 3 mph4 km/h	71%	67%	0
Sun 4a	Partly cloudy	41°5° (likely 40°4° to 51°11°)	41°5°	0%	1 mph2 km/h from SE, gusts 2 mph4 km/h	72%	63%	0
Sun 5a	Mostly clear	40°4° (likely 39°4° to 50°10°)	40°4°	0%	1 mph2 km/h from SE, gusts 2 mph4 km/h	75%	58%	0
Sun 6a	Mostly clear	39°4° (likely 38°3° to 49°9°)	39°4°	0%	1 mph2 km/h from SE, gusts 3 mph5 km/h	76%	70%	0
Sun 7a	Mostly clear	38°3° (likely 38°3° to 49°9°)	38°3°	0%	1 mph2 km/h from SE, gusts 3 mph5 km/h	79%	64%	0
Sun 8a	Partly sunny	39°4° (likely 38°3° to 48°9°)	39°4°	0%	2 mph3 km/h from ESE, gusts 3 mph5 km/h	80%	60%	0
Sun 9a	Partly sunny	43°6° (likely 43°6° to 50°10°)	43°6°	0%	2 mph3 km/h from ESE, gusts 3 mph5 km/h	73%	70%	0
Sun 10a	Partly sunny	49°9° (likely 49°9° to 56°13°)	49°9°	0%	2 mph3 km/h from ESE, gusts 4 mph7 km/h	61%	78%	1
Sun 11a	Partly sunny	55°13° (likely 55°13° to 61°16°)	55°13°	0%	2 mph3 km/h from SSE, gusts 8 mph12 km/h	50%	79%	2
Sun 12p	Partly sunny	59°15° (likely 59°15° to 65°18°)	59°15°	0%	2 mph3 km/h from SSE, gusts 6 mph10 km/h	43%	83%	3
Sun 1p	Cloudy	63°17° (likely 61°16° to 69°21°)	63°17°	0%	2 mph3 km/h from SSE, gusts 6 mph10 km/h	38%	87%	3
Sun 2p	Cloudy	66°19° (likely 62°17° to 69°21°)	66°19°	0%	2 mph3 km/h from SW, gusts 12 mph20 km/h	35%	93%	3
Sun 3p	Partly sunny	68°20° (likely 62°17° to 68°20°)	68°20°	0%	2 mph3 km/h from SW, gusts 15 mph24 km/h	34%	88%	3
Sun 4p	Partly sunny	68°20° (likely 60°16° to 68°20°)	68°20°	0%	2 mph3 km/h from SW, gusts 16 mph25 km/h	35%	36%	2
Sun 5p	Sunny	66°19° (likely 56°13° to 66°19°)	66°19°	20%	1 mph2 km/h from W, gusts 17 mph27 km/h	39%	28%	1
Sun 6p	Clear	63°17° (likely 54°12° to 63°17°)	63°17°	20%	1 mph2 km/h from W, gusts 15 mph25 km/h	45%	0%	0
Sun 7p	Clear	59°15° (likely 50°10° to 59°15°)	59°15°	20%	1 mph2 km/h from W, gusts 13 mph22 km/h	52%	0%	0
Sun 8p	Clear	55°13° (likely 47°8° to 55°13°)	55°13°	20%	0 mph0 km/h, gusts 11 mph18 km/h	60%	3%	0
Sun 9p	Clear	52°11° (likely 46°8° to 52°11°)	52°11°	20%	0 mph0 km/h, gusts 6 mph9 km/h	66%	8%	0
Sun 10p	Clear	51°11° (likely 44°7° to 51°11°)	51°11°	20%	0 mph0 km/h, gusts 4 mph7 km/h	71%	21%	0
Sun 11p	Rain	49°9° (likely 44°7° to 49°9°)	48°9°	50%, 0.01 in0.3 mm	3 mph5 km/h from SSE, gusts 4 mph6 km/h	76%	53%	0
Mon 12a	Rain	47°8° (likely 42°6° to 50°10°)	46°8°	50%, 0.01 in0.3 mm	3 mph5 km/h from SSE, gusts 3 mph5 km/h	81%	66%	0
Mon 1a	Rain	46°8° (likely 42°6° to 50°10°)	45°7°	50%, 0.01 in0.3 mm	3 mph5 km/h from SSE, gusts 4 mph7 km/h	87%	70%	0
Mon 2a	Rain	45°7° (likely 44°7° to 50°10°)	45°7°	50%, 0.01 in0.3 mm	1 mph2 km/h from SSE, gusts 4 mph6 km/h	91%	87%	0

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Mostly sunny. High 74°23°, low 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 40°4°
  Dry
Official NWS forecast
Today: Areas of frost before 11am. Sunny, with a high near 74. East northeast wind 0 to 5 mph.
Tonight: Areas of frost after 5am. Mostly clear, with a low around 35. Southeast wind around 5 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–74°23°
Low, likely
35°2°–49°9°
Wind
6 mph9 km/h, gusts 12 mph19 km/h
UV peak
4
Tomorrow, Oct 25. Rain. High 70°21°, low 39°4°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Rain, 55°13°
  50% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Rain, 45°7°
  80% chance · 0.1 in2.5 mm
Official NWS forecast
Day: A slight chance of rain after 5pm. Mostly sunny, with a high near 70. South wind around 2 mph. Chance of precipitation is 20%.
Night: A chance of rain before 2am, then a chance of rain and patchy fog between 2am and 5am, then areas of fog and a chance of rain. Mostly cloudy, with a low around 39. South wind 0 to 3 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
62°17°–70°21°
Low, likely
38°3°–46°8°
Wind
14 mph22 km/h, gusts 24 mph39 km/h
UV peak
3
Monday, Oct 26. Rain. High 62°17°, low 37°3°. Rain 0.23 in5.8 mm, 60% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 46°8°
  70% chance · 0.04 in0.9 mm
2. Afternoon
  noon–6 PM
  Drizzle, 56°13°
  60% chance · 0.03 in0.9 mm
3. Evening
  6 PM–midnight
  Cloudy, 49°9°
  20% chance
4. Overnight
  midnight–6 AM
  Mostly clear, 43°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog and a chance of rain before 8am, then rain likely and patchy fog. Partly sunny, with a high near 62. South southwest wind around 2 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Night: A chance of rain before 5am, then patchy fog. Partly cloudy, with a low around 37. 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°–62°17°
Low, likely
37°3°–45°7°
Wind
5 mph8 km/h, gusts 16 mph26 km/h
UV peak
1
Tuesday, Oct 27. Fog. High 64°18°, low 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 58°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 43°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 8am. Mostly sunny, with a high near 64.
Night: Partly cloudy, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–64°18°
Low, likely
37°3°–44°7°
Wind
7 mph11 km/h, gusts 20 mph33 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 67°19°, low 37°3°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Cloudy, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 43°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Patchy fog after 5am. Partly cloudy, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 67°19°).
High, likely
56°13°–67°19°
Low, likely
37°3°–44°7°
Wind
6 mph9 km/h, gusts 11 mph18 km/h
UV peak
4
Thursday, Oct 29. Fog. High 68°20°, low 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 43°6°
  20% chance
4. Overnight
  midnight–6 AM
  Mostly clear, 37°3°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 11am. Mostly sunny, with a high near 68.
Night: A slight chance of rain after 5am. Partly cloudy, with a low around 38.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
51°11°–68°20°
Low, likely
35°2°–42°6°
Wind
6 mph9 km/h, gusts 19 mph30 km/h
UV peak
4
Friday, Oct 30. Rain. High 67°19°, low 35°2°. Rain 0.15 in3.8 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 55°13°
  20% chance · 0.08 in2.1 mm
3. Evening
  6 PM–midnight
  Cloudy, 43°6°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 39°4°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly sunny, with a high near 67.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
47°8°–67°19°
Low, likely
32°0°–38°3°
Wind
6 mph9 km/h, gusts 21 mph34 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 55°13°, low 37°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 40°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 39°4°
  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
47°8°–66°19°
Low, likely
33°1°–43°6°
Wind
5 mph8 km/h, gusts 16 mph26 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 61°16°, low 36°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 44°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
48°9°–74°23°
Low, likely
32°0°–44°7°
Wind
6 mph10 km/h, gusts 20 mph32 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 61°16°, low 42°6°. Rain 0.23 in5.8 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  20% chance · 0.15 in3.7 mm
3. Evening
  6 PM–midnight
  Cloudy, 47°8°
  20% chance · 0.2 in0.4 cm
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
47°8°–77°25°
Low, likely
36°2°–52°11°
Wind
7 mph11 km/h, gusts 17 mph27 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 74°, low 35°.
Tomorrow
Dry, high 70°, low 39°, cooling off.
Monday
58% chance of rain, high 62°, low 37°, cooling off.
Rest of week
Mostly dry, highs 55–68°.

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

Trinity River at Hoopa

7.8 mi

Below flood stage

Level: 11.2 ft
Flow: 644 cfs

Forecast peak 11.1 ft Sat 3 AM

Reading from Sat 2 AM · NWS gauge page

Mad River near Arcata

22 mi

Below flood stage

Level: 5.7 ft
Flow: 53 cfs

Forecast peak 5.7 ft Tue 2 AM

Reading from Sat 1:45 AM · NWS gauge page

Redwood Creek near Blue Lake

9.4 mi

Level: 1.1 ft
Flow: 6 cfs

Reading from Sat 1:45 AM · NWS gauge page

South Fork Trinity River near Hyampom

21 mi

Level: 2.6 ft
Flow: 76 cfs

Reading from Sat 1:30 AM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 44 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 30 min less
Golden hour: 5:42–6:37 PM; Morning 7:19–8:14 AM
Blue hour: 6:37–6:48 PM; Morning 7:08–7:19 AM; first light 7:08 AM

Stars tonight? Good

Clear 3:31–7:08 AM; moon 96% lit, sets 5:56 AM.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:56 AM · rises 5:21 PM
Full moon: Oct 25
New moon: Nov 8

Looking northeast from Willow Creek. The highest point on the skyline is about 5,200 ft, 12 mi away.Skyline from USGS elevation data, heights drawn up to 3× taller. Sky, sun and moon as they are now.

1 active weather alert

Frost Advisory