Observed 2:35 AM PDT at KDVO

Nicasio, CA weather

Foggy and 48°9°.

Mostly agree

Now 48°9°

Fog

Wind: Calm; Up to 6 mph10 km/h through 3 PM
Visibility: 0.5 mi0.8 km; Fog · under 1 mi1.6 km
Dew point: 45°7°; Comfortable · down to 34°1° by 4 AM (dry)
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 14Good; Main pollutant: 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 2 PM
Drops 13°7° today 5–8 PM (68°20° → 55°13°)
Below 60°16° tonight after 7 PM
Fog tomorrow 6–7 AM

TonightNear 49°9° · Clear
This morningUp to 64°18° by 11 AM · Clear
This afternoonNear 69°21° · Clear
TonightDown to 46°8° by 4 AM · Clear
Tomorrow morningUp to 60°16° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 69°21° by 2 PM · Mostly cloudy
Tomorrow nightDown to 49°9° by 1 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 3a	Clear	50°10° (likely 50°10° to 52°11°)	50°10°	0%	2 mph3 km/h from N, gusts 5 mph9 km/h	58%	0%	0
Sat 4a	Clear	49°9° (likely 49°9° to 53°12°)	49°9°	0%	2 mph3 km/h from N, gusts 4 mph7 km/h	57%	0%	0
Sat 5a	Clear	48°9° (likely 48°9° to 53°12°)	48°9°	0%	1 mph2 km/h from N, gusts 5 mph7 km/h	56%	0%	0
Sat 6a	Clear	48°9° (likely 48°9° to 52°11°)	48°9°	0%	1 mph2 km/h from NNE, gusts 4 mph6 km/h	56%	0%	0
Sat 7a	Sunny	48°9° (likely 48°9° to 51°11°)	48°9°	0%	1 mph2 km/h from ENE, gusts 4 mph6 km/h	55%	0%	0
Sat 8a	Sunny	48°9° (likely 48°9° to 51°11°)	48°9°	0%	2 mph3 km/h from ENE, gusts 5 mph8 km/h	56%	0%	0
Sat 9a	Sunny	53°12° (likely 53°12° to 57°14°)	53°12°	0%	2 mph3 km/h from ENE, gusts 4 mph7 km/h	56%	0%	0
Sat 10a	Sunny	59°15° (likely 59°15° to 66°19°)	59°15°	0%	2 mph3 km/h from NE, gusts 4 mph7 km/h	49%	0%	1
Sat 11a	Sunny	64°18° (likely 64°18° to 71°22°)	64°18°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	42%	0%	3
Sat 12p	Sunny	69°21° (likely 68°20° to 74°23°)	69°21°	0%	2 mph3 km/h from NNE, gusts 5 mph8 km/h	36%	0%	4
Sat 1p	Sunny	71°22° (likely 69°21° to 76°24°)	71°22°	0%	3 mph5 km/h from NNE, gusts 6 mph10 km/h	35%	0%	4
Sat 2p	Sunny	72°22° (likely 70°21° to 76°24°)	72°22°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	35%	0%	4
Sat 3p	Sunny	72°22° (likely 69°21° to 75°24°)	72°22°	0%	6 mph10 km/h from W, gusts 10 mph15 km/h	40%	0%	3
Sat 4p	Sunny	70°21° (likely 67°19° to 73°23°)	70°21°	0%	7 mph11 km/h from W, gusts 11 mph17 km/h	44%	0%	2
Sat 5p	Sunny	68°20° (likely 64°18° to 69°21°)	68°20°	0%	7 mph11 km/h from W, gusts 10 mph16 km/h	51%	0%	2
Sat 6p	Clear	63°17° (likely 60°16° to 64°18°)	63°17°	0%	5 mph8 km/h from W, gusts 10 mph15 km/h	64%	0%	1
Sat 7p	Mostly clear	55°13° (likely 55°13° to 59°15°)	55°13°	0%	2 mph3 km/h from W, gusts 7 mph11 km/h	80%	18%	0
Sat 8p	Clear	52°11° (likely 52°11° to 56°13°)	52°11°	0%	1 mph2 km/h from W, gusts 6 mph9 km/h	84%	1%	0
Sat 9p	Mostly clear	51°11° (likely 51°11° to 55°13°)	51°11°	0%	1 mph2 km/h from WSW, gusts 4 mph6 km/h	84%	36%	0
Sat 10p	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	84%	8%	0
Sat 11p	Clear	50°10° (likely 50°10° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	84%	7%	0
Sun 12a	Clear	50°10° (likely 49°9° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	82%	2%	0
Sun 1a	Mostly clear	48°9° (likely 48°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	82%	9%	0
Sun 2a	Clear	48°9° (likely 47°8° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	79%	40%	0
Sun 3a	Mostly clear	47°8° (likely 47°8° to 52°11°)	47°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	78%	48%	0
Sun 4a	Mostly clear	46°8° (likely 46°8° to 52°11°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	78%	22%	0
Sun 5a	Clear	46°8° (likely 45°7° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	77%	25%	0
Sun 6a	Fog	45°7° (likely 44°7° to 51°11°)	45°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	75%	67%	0
Sun 7a	Partly sunny	46°8° (likely 46°8° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	75%	72%	0
Sun 8a	Partly sunny	46°8° (likely 46°8° to 51°11°)	46°8°	0%	2 mph3 km/h from E, gusts 4 mph6 km/h	78%	75%	0
Sun 9a	Partly sunny	49°9° (likely 49°9° to 55°13°)	49°9°	0%	2 mph3 km/h from E, gusts 4 mph7 km/h	81%	66%	1
Sun 10a	Partly sunny	56°13° (likely 54°12° to 61°16°)	56°13°	0%	2 mph3 km/h from E, gusts 5 mph7 km/h	75%	61%	2
Sun 11a	Partly sunny	60°16° (likely 60°16° to 65°18°)	60°16°	0%	3 mph5 km/h from SE, gusts 6 mph9 km/h	64%	61%	3
Sun 12p	Partly sunny	65°18° (likely 63°17° to 67°19°)	65°18°	0%	3 mph5 km/h from SE, gusts 6 mph10 km/h	54%	77%	4
Sun 1p	Partly sunny	67°19° (likely 66°19° to 67°19°)	67°19°	0%	3 mph5 km/h from SE, gusts 6 mph10 km/h	50%	79%	4
Sun 2p	Cloudy	69°21° (likely 65°18° to 69°21°)	69°21°	0%	5 mph8 km/h from WSW, gusts 8 mph13 km/h	48%	82%	4
Sun 3p	Cloudy	69°21° (likely 63°17° to 69°21°)	69°21°	0%	5 mph8 km/h from WSW, gusts 9 mph14 km/h	51%	85%	3
Sun 4p	Cloudy	68°20° (likely 62°17° to 68°20°)	68°20°	0%	5 mph8 km/h from WSW, gusts 9 mph14 km/h	54%	90%	3
Sun 5p	Cloudy	66°19° (likely 59°15° to 66°19°)	66°19°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	58%	90%	2
Sun 6p	Cloudy	62°17° (likely 57°14° to 62°17°)	62°17°	0%	5 mph8 km/h from W, gusts 10 mph16 km/h	70%	91%	0
Sun 7p	Mostly clear	57°14° (likely 54°12° to 57°14°)	57°14°	0%	5 mph8 km/h from W, gusts 10 mph15 km/h	82%	66%	0
Sun 8p	Partly cloudy	53°12° (likely 53°12° to 56°13°)	53°12°	0%	1 mph2 km/h from W, gusts 10 mph16 km/h	90%	60%	0
Sun 9p	Partly cloudy	51°11° (likely 51°11° to 55°13°)	51°11°	0%	1 mph2 km/h from W, gusts 10 mph17 km/h	93%	62%	0
Sun 10p	Cloudy	50°10° (likely 50°10° to 54°12°)	50°10°	0%	1 mph2 km/h from W, gusts 10 mph16 km/h	92%	62%	0
Sun 11p	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	1 mph2 km/h from W, gusts 9 mph15 km/h	90%	35%	0
Mon 12a	Clear	50°10° (likely 49°9° to 55°13°)	50°10°	0%	1 mph2 km/h from W, gusts 5 mph8 km/h	91%	21%	0
Mon 1a	Partly cloudy	49°9° (likely 49°9° to 55°13°)	49°9°	0%	1 mph2 km/h from W, gusts 5 mph8 km/h	91%	20%	0
Mon 2a	Clear	49°9° (likely 49°9° to 55°13°)	49°9°	0%	1 mph2 km/h from W, gusts 6 mph9 km/h	91%	22%	0

Days ahead

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

Today, Oct 24. Sunny. High 73°23°, low 47°8°. Typical 74°23° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°8°
  Dry
Official NWS forecast
Today: Sunny. High near 73, with temperatures falling to around 68 in the afternoon. Northeast wind 1 to 7 mph.
Tonight: Clear, with a low around 47. North wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–76°24°
Low, likely
47°8°–51°11°
Typical high / low
74°23° / 46°8°
Wind
10 mph15 km/h, gusts 17 mph27 km/h
UV peak
5
Tomorrow, Oct 25. Fog. High 70°21°, low 45°7°. Typical 74°23° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 70. South southeast wind 0 to 5 mph.
Night: Patchy fog between 9pm and 10pm. Partly cloudy, with a low around 45. West wind 1 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
44°7°–51°11°
Typical high / low
74°23° / 46°8°
Wind
9 mph14 km/h, gusts 19 mph30 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 65°18°, low 44°7°. Typical 74°23° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 65.
Night: Mostly clear, with a low around 44.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
63°17°–65°18°
Low, likely
44°7°–53°12°
Typical high / low
74°23° / 46°8°
Wind
12 mph19 km/h, gusts 27 mph43 km/h
UV peak
4
Tuesday, Oct 27. Partly sunny. High 65°18°, low 45°7°. Typical 73°23° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 65.
Night: Partly cloudy, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–65°18°
Low, likely
45°7°–48°9°
Typical high / low
73°23° / 46°8°
Wind
12 mph19 km/h, gusts 26 mph41 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 64°18°, low 46°8°. Typical 73°23° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
Night: Mostly cloudy, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
44°7°–50°10°
Typical high / low
73°23° / 46°8°
Wind
7 mph12 km/h, gusts 17 mph28 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 62°17°, low 47°8°. Typical 72°22° / 46°8°. Rain, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain after 5pm. Partly sunny, with a high near 62.
Night: A chance of rain. Partly cloudy, with a low around 47.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–66°19°
Low, likely
47°8°–52°11°
Typical high / low
72°22° / 46°8°
Wind
15 mph24 km/h, gusts 33 mph53 km/h
UV peak
4
Friday, Oct 30. Rain. High 62°17°, low 47°8°. Typical 72°22° / 45°7°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 52°11°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  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 62.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–64°18°
Low, likely
45°7°–48°9°
Typical high / low
72°22° / 45°7°
Wind
10 mph17 km/h, gusts 27 mph44 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 61°16°, low 45°7°. Typical 72°22° / 45°7°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  30% chance
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  30% chance
3. Evening
  6 PM–midnight
  Clear, 53°11°
  30% chance
4. Overnight
  midnight–6 AM
  Clear, 47°9°
  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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–67°19°
Low, likely
39°4°–49°9°
Typical high / low
72°22° / 45°7°
Wind
10 mph16 km/h, gusts 24 mph38 km/h
UV peak
3
Sunday, Nov 1. Sunny. High 64°18°, low 46°8°. Typical 71°22° / 45°7°. Rain, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  30% chance
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 56°13°
  20% chance
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  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
58°14°–71°22°
Low, likely
39°4°–55°13°
Typical high / low
71°22° / 45°7°
Wind
15 mph23 km/h, gusts 33 mph54 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 65°18°, low 51°11°. Typical 71°22° / 45°7°. Rain 0.05 in1.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 54°12°
  20% chance
2. Afternoon
  noon–6 PM
  Mostly sunny, 65°19°
  20% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Cloudy, 57°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
59°15°–73°23°
Low, likely
48°9°–57°14°
Typical high / low
71°22° / 45°7°
Wind
12 mph19 km/h, gusts 31 mph50 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 47°.
Tomorrow
Dry, high 70°, low 45°, cooling off.
Monday
Dry, high 65°, low 44°, cooling off.
Rest of week
Mostly dry, highs 61–65°.

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

Lagunitas Creek at Samuel P. Taylor State Park

3.0 mi

Level: 1.7 ft
Flow: 11 cfs

Reading from Sat 1:45 AM · NWS gauge page

Lagunitas Creek near Pt. Reyes Station

4.7 mi

Below flood stage

Level: 1.0 ft
Flow: 10 cfs

Reading from Sat 2 AM · NWS gauge page

Olema Creek at Vedanta Bridge

4.9 mi

Level: 72.9 ft
Flow: under 1 cfs

Reading from Sat 2 AM · NWS gauge page

Fairfax Creek at Sunnyside

6.4 mi

Level: 0.1 ft

Reading from Sat 12:05 AM · NWS gauge page

For your home

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

Heating this week

About 48% less heating than a typical week.

This week 20Typical 39

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 6
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 45°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 about typical for the date.

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

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

Sun & moon

Sun

Daylight: 10 h 52 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 21 min less
Golden hour: 5:44–6:37 PM; Morning 7:11–8:04 AM
Blue hour: 6:37–6:47 PM; Morning 7:01–7:11 AM; first light 7:01 AM

Stars tonight? Good

Clear 3:25–7:01 AM; moon 96% lit, sets 5:50 AM.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:50 AM · rises 5:20 PM
Full moon: Oct 25
New moon: Nov 8

Looking southeast from Nicasio. The highest point on the skyline is about 2,500 ft, 11 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.