Observed 3:15 AM PDT at KDVO

Lucas Valley-Marinwood, CA weather

Clear and 48°9°.

Mostly agree

Now 48°9°

Clear

Wind: Calm; Up to 5 mph8 km/h through 4 PM
Dew point: 46°8°; Comfortable · down to 31°−1° by 5 AM (dry)
Humidity: 93%; Air 48°9°, dew point 46°8° · fog or dew likely
UV index: 0Low; Moderate 11 AM–5 PM · peak 5
Air today: 35Good; EPA forecast · Ozone
Pressure: 30.04 inHg1017 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (50°10° then, 48°9° now)

Good hours for

Above 60°16° today by 11 AM
High 72°22° today at 3 PM
Below 60°16° tonight after 7 PM

TonightNear 51°11° · Clear
This morningUp to 63°17° by 11 AM · Clear
This afternoonUp to 72°22° by 3 PM · Clear
TonightDown to 48°9° by 4 AM · Clear
Tomorrow morningUp to 59°15° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 69°21° by 3 PM · Mostly cloudy
Tomorrow nightDown to 50°10° by 2 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 4a	Clear	52°11° (likely 47°8° to 57°14°)	52°11°	0%	5 mph8 km/h from NNW, gusts 7 mph12 km/h	48%	0%	0
Sat 5a	Clear	50°10° (likely 47°8° to 57°14°)	49°9°	0%	5 mph8 km/h from NNW, gusts 6 mph10 km/h	47%	0%	0
Sat 6a	Clear	50°10° (likely 47°8° to 56°13°)	49°9°	0%	5 mph8 km/h from NNW, gusts 7 mph11 km/h	48%	0%	0
Sat 7a	Sunny	50°10° (likely 47°8° to 56°13°)	50°10°	0%	2 mph3 km/h from NNW, gusts 6 mph9 km/h	50%	0%	0
Sat 8a	Sunny	50°10° (likely 48°9° to 55°13°)	50°10°	0%	2 mph3 km/h from N, gusts 5 mph8 km/h	51%	0%	0
Sat 9a	Sunny	54°12° (likely 52°11° to 59°15°)	54°12°	0%	2 mph3 km/h from NNW, gusts 3 mph5 km/h	51%	0%	1
Sat 10a	Sunny	59°15° (likely 58°14° to 65°18°)	59°15°	0%	2 mph3 km/h from NE, gusts 3 mph4 km/h	46%	0%	2
Sat 11a	Sunny	63°17° (likely 62°17° to 69°21°)	63°17°	0%	3 mph5 km/h from NE, gusts 5 mph7 km/h	41%	0%	3
Sat 12p	Sunny	67°19° (likely 65°18° to 71°22°)	67°19°	0%	2 mph3 km/h from ENE, gusts 5 mph8 km/h	38%	0%	4
Sat 1p	Sunny	69°21° (likely 66°19° to 73°23°)	69°21°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	36%	0%	5
Sat 2p	Sunny	71°22° (likely 68°20° to 74°23°)	71°22°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	33%	0%	5
Sat 3p	Sunny	72°22° (likely 68°20° to 74°23°)	72°22°	0%	0 mph0 km/h, gusts 6 mph9 km/h	34%	0%	4
Sat 4p	Sunny	70°21° (likely 68°20° to 73°23°)	71°22°	0%	2 mph3 km/h from WSW, gusts 10 mph15 km/h	37%	0%	3
Sat 5p	Sunny	69°21° (likely 65°18° to 70°21°)	69°21°	0%	3 mph5 km/h from W, gusts 12 mph19 km/h	40%	0%	2
Sat 6p	Clear	65°18° (likely 60°16° to 65°18°)	65°18°	0%	3 mph5 km/h from W, gusts 12 mph19 km/h	51%	0%	1
Sat 7p	Clear	58°14° (likely 56°13° to 61°16°)	58°14°	0%	3 mph5 km/h from W, gusts 12 mph19 km/h	62%	0%	0
Sat 8p	Clear	55°13° (likely 53°12° to 59°15°)	55°13°	0%	2 mph3 km/h from W, gusts 10 mph16 km/h	70%	5%	0
Sat 9p	Clear	54°12° (likely 51°11° to 58°14°)	54°12°	0%	2 mph3 km/h from W, gusts 8 mph13 km/h	71%	9%	0
Sat 10p	Clear	52°11° (likely 49°9° to 56°13°)	52°11°	0%	1 mph2 km/h from W, gusts 7 mph11 km/h	72%	12%	0
Sat 11p	Clear	52°11° (likely 48°9° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 6 mph9 km/h	70%	10%	0
Sun 12a	Clear	51°11° (likely 46°8° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 6 mph9 km/h	69%	10%	0
Sun 1a	Clear	51°11° (likely 46°8° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 5 mph7 km/h	70%	9%	0
Sun 2a	Clear	50°10° (likely 46°8° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 2 mph4 km/h	71%	42%	0
Sun 3a	Mostly clear	49°9° (likely 46°8° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	72%	46%	0
Sun 4a	Mostly clear	48°9° (likely 45°7° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 4 mph7 km/h	72%	30%	0
Sun 5a	Partly cloudy	48°9° (likely 44°7° to 50°10°)	48°9°	0%	1 mph2 km/h from N, gusts 5 mph7 km/h	70%	23%	0
Sun 6a	Partly cloudy	47°8° (likely 44°7° to 50°10°)	47°8°	0%	1 mph2 km/h from N, gusts 5 mph7 km/h	73%	38%	0
Sun 7a	Partly sunny	48°9° (likely 45°7° to 49°9°)	48°9°	0%	1 mph2 km/h from N, gusts 6 mph9 km/h	73%	87%	0
Sun 8a	Mostly cloudy	48°9° (likely 45°7° to 50°10°)	48°9°	0%	2 mph3 km/h from NE, gusts 5 mph9 km/h	75%	86%	0
Sun 9a	Cloudy	51°11° (likely 48°9° to 54°12°)	51°11°	0%	2 mph3 km/h from NE, gusts 4 mph7 km/h	75%	85%	1
Sun 10a	Cloudy	56°13° (likely 53°12° to 58°14°)	56°13°	0%	2 mph3 km/h from NE, gusts 4 mph6 km/h	71%	67%	2
Sun 11a	Cloudy	59°15° (likely 57°14° to 62°17°)	59°15°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	62%	66%	3
Sun 12p	Cloudy	63°17° (likely 60°16° to 65°18°)	63°17°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	56%	77%	4
Sun 1p	Cloudy	65°18° (likely 62°17° to 67°19°)	65°18°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	51%	80%	4
Sun 2p	Partly sunny	68°20° (likely 64°18° to 69°21°)	68°20°	0%	0 mph0 km/h, gusts 5 mph8 km/h	45%	80%	4
Sun 3p	Partly sunny	69°21° (likely 65°18° to 69°21°)	69°21°	0%	0 mph0 km/h, gusts 9 mph14 km/h	45%	83%	4
Sun 4p	Cloudy	68°20° (likely 64°18° to 68°20°)	68°20°	0%	0 mph0 km/h, gusts 10 mph16 km/h	46%	85%	3
Sun 5p	Cloudy	67°19° (likely 60°16° to 67°19°)	67°19°	0%	1 mph2 km/h from WSW, gusts 11 mph17 km/h	48%	87%	1
Sun 6p	Cloudy	63°17° (likely 55°13° to 63°17°)	63°17°	0%	1 mph2 km/h from WSW, gusts 13 mph20 km/h	59%	89%	0
Sun 7p	Cloudy	58°14° (likely 53°12° to 58°14°)	59°15°	0%	1 mph2 km/h from WSW, gusts 13 mph21 km/h	68%	79%	0
Sun 8p	Partly cloudy	55°13° (likely 52°11° to 55°13°)	55°13°	0%	2 mph3 km/h from WSW, gusts 14 mph23 km/h	76%	47%	0
Sun 9p	Partly cloudy	53°12° (likely 50°10° to 54°12°)	53°12°	0%	2 mph3 km/h from WSW, gusts 13 mph21 km/h	79%	39%	0
Sun 10p	Clear	52°11° (likely 49°9° to 52°11°)	52°11°	0%	2 mph3 km/h from WSW, gusts 13 mph20 km/h	79%	28%	0
Sun 11p	Clear	52°11° (likely 48°9° to 52°11°)	52°11°	0%	3 mph5 km/h from W, gusts 12 mph19 km/h	78%	31%	0
Mon 12a	Clear	51°11° (likely 47°8° to 51°11°)	51°11°	0%	3 mph5 km/h from W, gusts 6 mph9 km/h	80%	21%	0
Mon 1a	Clear	51°11° (likely 47°8° to 51°11°)	50°10°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	80%	23%	0
Mon 2a	Clear	50°10° (likely 47°8° to 51°11°)	50°10°	0%	2 mph3 km/h from W, gusts 7 mph11 km/h	81%	23%	0
Mon 3a	Clear	50°10° (likely 46°8° to 51°11°)	50°10°	0%	2 mph3 km/h from W, gusts 8 mph12 km/h	81%	23%	0

Days ahead

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

Today, Oct 24. Sunny. High 72°22°, low 49°9°. Typical 74°23° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 48°9°
  Dry
Official NWS forecast
Today: Sunny. High near 72, with temperatures falling to around 69 in the afternoon. North northeast wind 0 to 5 mph.
Tonight: Clear, with a low around 49. North northwest wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–74°23°
Low, likely
47°8°–55°13°
Typical high / low
74°23° / 46°8°
Wind
11 mph18 km/h
UV peak
5
Tomorrow, Oct 25. Partly sunny. High 69°21°, low 47°8°. Typical 74°23° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 69. East northeast wind around 2 mph.
Night: Mostly clear, with a low around 47. West wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
44°7°–50°10°
Typical high / low
74°23° / 46°8°
Wind
13 mph21 km/h, gusts 24 mph38 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 65°18°, low 46°8°. Typical 74°23° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 65.
Night: Mostly clear, with a low around 46.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
63°17°–65°18°
Low, likely
46°8°–50°10°
Typical high / low
74°23° / 46°8°
Wind
10 mph17 km/h, gusts 24 mph38 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 66°19°, low 47°8°. Typical 73°23° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 66.
Night: Partly cloudy, with a low around 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–66°19°
Low, likely
43°6°–47°8°
Typical high / low
73°23° / 46°8°
Wind
12 mph19 km/h, gusts 26 mph41 km/h
UV peak
5
Wednesday, Oct 28. Partly sunny. High 66°19°, low 48°9°. Typical 73°23° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 66.
Night: Partly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
43°6°–48°9°
Typical high / low
73°23° / 46°8°
Wind
6 mph9 km/h, gusts 17 mph28 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 65°18°, low 48°9°. Typical 72°22° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain after 5pm. Mostly sunny, with a high near 65.
Night: A chance of rain. Partly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
60°16°–65°18°
Low, likely
46°8°–50°10°
Typical high / low
72°22° / 46°8°
Wind
12 mph19 km/h, gusts 23 mph37 km/h
UV peak
4
Friday, Oct 30. Rain. High 64°18°, low 44°7°. Typical 72°22° / 45°7°. Rain 0.01 in0.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 50°10°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 64.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–64°18°
Low, likely
40°4°–47°8°
Typical high / low
72°22° / 45°7°
Wind
9 mph14 km/h, gusts 22 mph35 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 60°16°, low 44°7°. Typical 72°22° / 45°7°. Rain 0.01 in0.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  20% chance
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  30% chance
3. Evening
  6 PM–midnight
  Clear, 52°11°
  30% chance
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  30% chance
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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–64°18°
Low, likely
36°2°–48°9°
Typical high / low
72°22° / 45°7°
Wind
9 mph14 km/h, gusts 17 mph27 km/h
UV peak
3
Sunday, Nov 1. Sunny. High 63°17°, low 46°8°. Typical 71°22° / 45°7°. Rain, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  30% chance
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 56°13°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  20% chance
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
57°14°–68°20°
Low, likely
37°3°–54°12°
Typical high / low
71°22° / 45°7°
Wind
12 mph19 km/h, gusts 23 mph36 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 64°18°, low 50°10°. Typical 71°22° / 45°7°. Rain 0.05 in1.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 51°10°
  20% chance
2. Afternoon
  noon–6 PM
  Partly sunny, 64°18°
  20% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Cloudy, 56°14°
  20% chance · 0.09 in2.3 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
57°14°–70°21°
Low, likely
46°8°–56°13°
Typical high / low
71°22° / 45°7°
Wind
9 mph14 km/h, gusts 22 mph35 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 72°, low 49°.
Tomorrow
Dry, high 69°, low 47°, cooling off.
Monday
Dry, high 65°, low 46°, cooling off.
Rest of week
Mostly dry, highs 60–66°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (MTR) (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

Fairfax Creek at Sunnyside

3.3 mi

Level: 0.1 ft

Reading from Sat 12:05 AM · NWS gauge page

Novato Creek at Pacheco and San Jose Creeks

3.4 mi

Level: 2.5 ft

Reading from Fri 8:35 PM · NWS gauge page

Sleepy Hollow Creek at RVFD Fire Station 20

3.4 mi

Below flood stage

Level: 2.1 ft

Reading from Sat 12:30 AM · NWS gauge page

Fairfax Creek at RVFD Station 21

3.9 mi

Below flood stage

Level: 0.5 ft

Reading from Fri 11:50 PM · NWS gauge page

For your home

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

Heating this week

About 54% less heating than a typical week.

This week 18Typical 39

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 1
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 46°F).

Open the windows?

Today, 11:00 AM–6:00 PM

Good stretch to open the windows.

Is this typical?

PETALUMA AIRPORT · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

On average 3°1° colder than normal (daily mean temperature).

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

Lucas Valley-Marinwood weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 52 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 21 min less
Golden hour: 5:44–6:36 PM; Morning 7:11–8:04 AM
Blue hour: 6:36–6:47 PM; Morning 7:01–7:11 AM; first light 7:01 AM

Stars tonight? Fair

Clear 4:14–7:01 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:49 AM · rises 5:20 PM
Full moon: Oct 25
New moon: Nov 8

Looking south from Lucas Valley-Marinwood. The highest point on the skyline is about 2,500 ft, 8 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.