Frost Advisory
Ends in 2 h 12 min
When
Until 9 AM PDT this morning.
Where
Coastal Mendocino and Southwestern Interior Mendocino.
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: Coastal Mendocino; Southwestern Interior Mendocino
See it on weather.gov (opens in a new tab)

Observed 5:56 AM PDT at KUKI

Philo, CA weather

Clear and 40°4°.

Forecasts differ

Now 40°4°

Clear

Wind: Calm; Up to 8 mph13 km/h through 6 PM
Dew point: 39°4°; Comfortable · down to 26°−3° by 7 AM (dry)
Humidity: 97%; Air 40°4°, dew point 39°4° · fog or dew likely
UV index: 0Low; Moderate 12–4 PM · peak 4
Air quality: 48Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.1 inHg1019 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

12°7° cooler than this time yesterday (52°11° then, 40°4° now)

Good hours for

Low 34°1° today at 7 AM
Above 50°10° today by 10 AM
High 75°24° today at 3 PM
Below 60°16° tonight after 8 PM
Fog tomorrow night from 5 AM

This morningUp to 60°16° by 11 AM · Clear
This afternoonUp to 75°24° by 3 PM · Clear
TonightDown to 41°5° by 5 AM · Partly cloudy
Tomorrow morningUp to 61°16° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 73°23° by 2 PM · Mostly cloudy
Tomorrow nightDown to 42°6° by 5 AM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 6a	Clear	36°2° (likely 36°2° to 48°9°)	36°2°	0%	1 mph2 km/h from NW, gusts 6 mph9 km/h	73%	10%	0
Sat 7a	Clear	34°1° (likely 34°1° to 50°10°)	34°1°	0%	1 mph2 km/h from NW, gusts 5 mph9 km/h	72%	9%	0
Sat 8a	Sunny	36°2° (likely 36°2° to 52°11°)	36°2°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	69%	7%	0
Sat 9a	Sunny	43°6° (likely 43°6° to 54°12°)	41°5°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	57%	0%	0
Sat 10a	Sunny	53°12° (likely 53°12° to 64°18°)	53°12°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	48%	0%	1
Sat 11a	Sunny	60°16° (likely 60°16° to 71°22°)	60°16°	0%	2 mph3 km/h from WNW, gusts 4 mph7 km/h	38%	0%	2
Sat 12p	Sunny	66°19° (likely 66°19° to 74°23°)	66°19°	0%	2 mph3 km/h from WNW, gusts 4 mph6 km/h	32%	0%	4
Sat 1p	Sunny	72°22° (likely 69°21° to 77°25°)	72°22°	0%	2 mph3 km/h from WNW, gusts 5 mph8 km/h	26%	0%	4
Sat 2p	Sunny	74°23° (likely 70°21° to 78°26°)	74°23°	0%	8 mph13 km/h from NW, gusts 7 mph11 km/h	24%	0%	4
Sat 3p	Sunny	75°24° (likely 69°21° to 78°26°)	75°24°	0%	8 mph13 km/h from NW, gusts 8 mph13 km/h	26%	0%	3
Sat 4p	Sunny	74°23° (likely 67°19° to 77°25°)	74°23°	0%	8 mph13 km/h from NW, gusts 9 mph15 km/h	27%	0%	2
Sat 5p	Sunny	71°22° (likely 64°18° to 74°23°)	71°22°	0%	7 mph11 km/h from NW, gusts 9 mph15 km/h	31%	23%	2
Sat 6p	Mostly clear	66°19° (likely 59°15° to 68°20°)	66°19°	0%	7 mph11 km/h from NW, gusts 9 mph14 km/h	42%	15%	1
Sat 7p	Mostly clear	63°17° (likely 54°12° to 63°17°)	63°17°	0%	7 mph11 km/h from NW, gusts 6 mph10 km/h	49%	9%	0
Sat 8p	Clear	56°13° (likely 52°11° to 58°14°)	56°13°	0%	2 mph3 km/h from NW, gusts 3 mph5 km/h	57%	11%	0
Sat 9p	Partly cloudy	53°12° (likely 50°10° to 56°13°)	53°12°	0%	2 mph3 km/h from NW, gusts 2 mph4 km/h	60%	27%	0
Sat 10p	Clear	52°11° (likely 49°9° to 54°12°)	52°11°	0%	2 mph3 km/h from NW, gusts 3 mph5 km/h	63%	34%	0
Sat 11p	Clear	49°9° (likely 47°8° to 52°11°)	49°9°	0%	3 mph5 km/h from ESE, gusts 3 mph5 km/h	66%	38%	0
Sun 12a	Mostly clear	48°9° (likely 44°7° to 50°10°)	48°9°	0%	3 mph5 km/h from ESE, gusts 5 mph7 km/h	66%	61%	0
Sun 1a	Mostly clear	46°8° (likely 43°6° to 50°10°)	46°8°	0%	3 mph5 km/h from ESE, gusts 5 mph8 km/h	67%	65%	0
Sun 2a	Mostly clear	45°7° (likely 43°6° to 50°10°)	45°7°	0%	1 mph2 km/h from E, gusts 5 mph9 km/h	68%	71%	0
Sun 3a	Mostly clear	43°6° (likely 43°6° to 50°10°)	43°6°	0%	1 mph2 km/h from E, gusts 6 mph9 km/h	69%	73%	0
Sun 4a	Mostly clear	42°6° (likely 42°6° to 51°11°)	42°6°	0%	1 mph2 km/h from E, gusts 7 mph11 km/h	71%	74%	0
Sun 5a	Mostly clear	41°5° (likely 41°5° to 50°10°)	41°5°	0%	1 mph2 km/h from E, gusts 7 mph11 km/h	74%	74%	0
Sun 6a	Mostly clear	38°3° (likely 38°3° to 49°9°)	38°3°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	76%	75%	0
Sun 7a	Mostly clear	37°3° (likely 37°3° to 49°9°)	37°3°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	79%	75%	0
Sun 8a	Partly sunny	39°4° (likely 39°4° to 48°9°)	39°4°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	80%	73%	0
Sun 9a	Partly sunny	45°7° (likely 45°7° to 54°12°)	45°7°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	72%	66%	1
Sun 10a	Partly sunny	53°12° (likely 53°12° to 60°16°)	53°12°	0%	2 mph3 km/h from E, gusts 9 mph14 km/h	59%	66%	1
Sun 11a	Partly sunny	61°16° (likely 61°16° to 66°19°)	61°16°	0%	2 mph3 km/h from SSE, gusts 7 mph11 km/h	46%	76%	3
Sun 12p	Partly sunny	66°19° (likely 63°17° to 69°21°)	66°19°	0%	2 mph3 km/h from SSE, gusts 7 mph11 km/h	38%	76%	3
Sun 1p	Partly sunny	70°21° (likely 64°18° to 70°21°)	70°21°	0%	2 mph3 km/h from SSE, gusts 7 mph12 km/h	33%	80%	4
Sun 2p	Cloudy	73°23° (likely 64°18° to 73°23°)	73°23°	0%	3 mph5 km/h from SW, gusts 6 mph10 km/h	31%	84%	4
Sun 3p	Cloudy	73°23° (likely 64°18° to 73°23°)	73°23°	0%	3 mph5 km/h from SW, gusts 7 mph11 km/h	31%	87%	3
Sun 4p	Cloudy	71°22° (likely 61°16° to 71°22°)	71°22°	0%	3 mph5 km/h from SW, gusts 10 mph16 km/h	35%	92%	2
Sun 5p	Cloudy	68°20° (likely 59°15° to 68°20°)	68°20°	0%	7 mph11 km/h from W, gusts 11 mph17 km/h	40%	91%	1
Sun 6p	Partly cloudy	64°18° (likely 56°13° to 64°18°)	64°18°	0%	7 mph11 km/h from W, gusts 11 mph17 km/h	47%	52%	0
Sun 7p	Mostly clear	59°15° (likely 52°11° to 59°15°)	59°15°	0%	7 mph11 km/h from W, gusts 10 mph17 km/h	56%	34%	0
Sun 8p	Partly cloudy	55°13° (likely 50°10° to 55°13°)	55°13°	0%	1 mph2 km/h from NW, gusts 8 mph14 km/h	64%	37%	0
Sun 9p	Partly cloudy	53°12° (likely 48°9° to 53°12°)	53°12°	0%	1 mph2 km/h from NW, gusts 8 mph13 km/h	70%	53%	0
Sun 10p	Partly cloudy	51°11° (likely 47°8° to 52°11°)	51°11°	0%	1 mph2 km/h from NW, gusts 5 mph8 km/h	74%	44%	0
Sun 11p	Partly cloudy	50°10° (likely 46°8° to 51°11°)	50°10°	0%	1 mph2 km/h from NNE, gusts 4 mph7 km/h	77%	36%	0
Mon 12a	Partly cloudy	49°9° (likely 46°8° to 49°9°)	49°9°	0%	1 mph2 km/h from NNE, gusts 3 mph5 km/h	79%	27%	0
Mon 1a	Partly cloudy	47°8° (likely 45°7° to 48°9°)	47°8°	0%	1 mph2 km/h from NNE, gusts 4 mph6 km/h	81%	55%	0
Mon 2a	Partly cloudy	46°8° (likely 44°7° to 50°10°)	46°8°	0%	1 mph2 km/h from NE, gusts 4 mph7 km/h	83%	65%	0
Mon 3a	Partly cloudy	45°7° (likely 43°6° to 51°11°)	45°7°	0%	1 mph2 km/h from NE, gusts 5 mph8 km/h	87%	73%	0
Mon 4a	Partly cloudy	43°6° (likely 42°6° to 51°11°)	43°6°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	90%	76%	0
Mon 5a	Fog	42°6° (likely 42°6° to 51°11°)	42°6°	5%	1 mph2 km/h from NE, gusts 4 mph6 km/h	94%	85%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Mostly sunny. High 75°24°, low 37°3°. Typical 76°24° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 41°5°
  Dry
Official NWS forecast
Today: Areas of frost before 11am. Sunny. High near 75, with temperatures falling to around 71 in the afternoon. Northwest wind 1 to 8 mph.
Tonight: Patchy frost after 5am. Mostly clear. Low around 37, with temperatures rising to around 41 overnight. East wind 1 to 7 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
70°21°–78°26°
Low, likely
37°3°–45°7°
Typical high / low
76°24° / 44°7°
Wind
8 mph13 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 73°23°, low 38°3°. Typical 75°24° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 42°6°
  Dry
Official NWS forecast
Day: Patchy frost before 8am. Mostly sunny. High near 73, with temperatures falling to around 68 in the afternoon. South southeast wind 1 to 7 mph.
Night: Patchy fog after 5am. Partly cloudy, with a low around 38. North wind 1 to 7 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–73°23°
Low, likely
38°3°–48°9°
Typical high / low
75°24° / 44°7°
Wind
11 mph17 km/h
UV peak
4
Monday, Oct 26. Drizzle. High 65°18°, low 37°3°. Typical 75°24° / 43°6°. Rain 0.01 in0.3 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 49°10°
  20% chance
2. Afternoon
  noon–6 PM
  Mostly sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 11am, then a slight chance of rain between 11am and 5pm. Mostly sunny, with a high near 65. Northwest wind 1 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Night: Patchy fog after 2am. Partly cloudy, with a low around 37. North northwest wind 1 to 8 mph, with gusts as high as 20 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–65°18°
Low, likely
37°3°–47°8°
Typical high / low
75°24° / 43°6°
Wind
9 mph15 km/h, gusts 24 mph38 km/h
UV peak
4
Tuesday, Oct 27. Fog. High 65°18°, low 36°2°. Typical 74°23° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 11am. Mostly sunny, with a high near 65.
Night: Patchy fog after 2am. Partly cloudy, with a low around 36.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–65°18°
Low, likely
36°2°–45°7°
Typical high / low
74°23° / 43°6°
Wind
10 mph16 km/h, gusts 20 mph32 km/h
UV peak
4
Wednesday, Oct 28. Fog. High 67°19°, low 37°3°. Typical 74°23° / 43°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°10°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 11am. Mostly sunny, with a high near 67.
Night: Patchy fog after 2am. Partly cloudy, with a low around 37.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–68°20°
Low, likely
37°3°–44°7°
Typical high / low
74°23° / 43°6°
Wind
9 mph14 km/h, gusts 15 mph23 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 66°19°, low 38°3°. Typical 73°23° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 47°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 11am. Mostly sunny, with a high near 66.
Night: A slight chance of rain between 11pm and 2am, then patchy fog and a slight chance of rain. Partly cloudy, with a low around 38.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
57°14°–66°19°
Low, likely
38°3°–47°8°
Typical high / low
73°23° / 43°6°
Wind
10 mph17 km/h, gusts 27 mph43 km/h
UV peak
4
Friday, Oct 30. Rain. High 65°18°, low 38°3°. Typical 73°23° / 43°6°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°4°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and patchy fog. Partly sunny, with a high near 65.
Night: A chance of rain before 8pm. Mostly cloudy, with a low around 38.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
56°13°–65°18°
Low, likely
35°2°–43°6°
Typical high / low
73°23° / 43°6°
Wind
8 mph13 km/h, gusts 22 mph36 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 59°15°, low 39°4°. Typical 72°22° / 43°6°. Rain 0.05 in1.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 60°16°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°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
54°12°–68°20°
Low, likely
37°3°–43°6°
Typical high / low
72°22° / 43°6°
Wind
8 mph13 km/h, gusts 21 mph34 km/h
UV peak
4
Sunday, Nov 1. Partly sunny. High 66°19°, low 40°4°. Typical 72°22° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  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
55°13°–78°26°
Low, likely
38°3°–42°6°
Typical high / low
72°22° / 42°6°
Wind
11 mph18 km/h, gusts 29 mph47 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 64°18°, low 44°7°. Typical 71°22° / 42°6°. Rain 0.08 in2 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  20% chance · 0.05 in1.2 mm
3. Evening
  6 PM–midnight
  Mostly clear, 50°10°
  20% chance · 0.13 in3.3 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
56°13°–74°23°
Low, likely
40°4°–49°9°
Typical high / low
71°22° / 42°6°
Wind
6 mph10 km/h, gusts 24 mph39 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 75°, low 37°.
Tomorrow
Dry, high 73°, low 38°.
Monday
Dry, high 65°, low 37°, cooling off.
Rest of week
Mostly dry, highs 59–67°.

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

Navarro River near Navarro

14 mi

Below flood stage

Level: 1.2 ft
Flow: 6 cfs

Forecast peak 0.8 ft Sat 7 AM

Reading from Sat 5:15 AM · NWS gauge page

Russian River near Hopland

17 mi

Below flood stage

Level: 1.2 ft
Flow: 209 cfs

Forecast peak 1.2 ft Sat 7 AM

Reading from Sat 5:45 AM · NWS gauge page

Garcia River at Eureka Hill Rd Near Point Arena

14 mi

Level: 2.6 ft
Flow: 64 cfs

Reading from Sat 6 AM · NWS gauge page

Russian River near Talmage

14 mi

Level: 6.9 ft
Flow: 156 cfs

Reading from Sat 5:30 AM · NWS gauge page

For your home

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

Heating this week

About 46% less heating than a typical week.

This week 24Typical 44

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 17
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 2 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 39°F).

Open the windows?

Today, 11:00 AM–7:00 PM

Good stretch to open the windows.

Is this typical?

Ukiah Municipal Airport · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

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

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

Philo weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 24 min less
Golden hour: 5:45–6:39 PM; Morning 7:16–8:09 AM
Blue hour: 6:39–6:49 PM; Morning 7:05–7:16 AM; first light 7:05 AM

Stars tonight? Good

Clear 6:48–7:05 AM; moon 97% lit but below the horizon.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:54 AM · rises 5:22 PM
Full moon: Oct 25
New moon: Nov 8

Looking east from Philo. The highest point on the skyline is about 3,000 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

Philo, CA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Navarro River near Navarro

Russian River near Hopland

Garcia River at Eureka Hill Rd Near Point Arena

Russian River near Talmage

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Good

Moon