Coastal Flood Advisory
Starts in 2 h 57 min
When
From 8 AM Saturday to 3 PM PDT Thursday.
Where
Bay Shoreline locations of San Francisco Bay, Monterey Bay and Big Sur Coast.
Issued for this forecast zone · National Weather Service San Francisco CA
What, impacts and precautionsHide details
What
Up to 1.9ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways.
Impacts
High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas.
Additional details
At the San Francisco tidal gauge, high tide is expected to be 1.1 ft above normal (6.9 ft MLLW) at 10:39 AM Saturday 10/24, 1.4 ft above normal (7.2 ft MLLW) at 11:07 AM Sunday 10/25, 1.7 ft above normal (7.5 ft MLLW) at 11:39 AM Monday 10/26, 1.8 ft above normal (7.6 ft MLLW) at 12:15 PM Tuesday 10/27, 1.9 ft above normal (7.7 ft MLLW) at 12:56 PM Wednesday 10/28, and 1.7 ft above normal (7.5 ft MLLW) at 01:43 PM Thursday 10/29. These predictions include up to 1.0 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.
Precautionary actions
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Areas: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
See it on weather.gov (opens in a new tab)

Observed 4:50 AM PDT at KSTS

Deer Park, CA weather

Clear and 45°7°.

Mostly agree

Now 45°7°

Clear

Wind: 3 mph5 km/h; From the west. Up to 7 mph11 km/h through 5 PM
Dew point: 43°6°; Comfortable · down to 30°−1° by 6 AM (dry)
Humidity: 93%; Air 45°7°, dew point 43°6° · fog or dew likely
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
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

Good hours for

Above 60°16° today by 11 AM
High 74°23° today at 3 PM
Below 60°16° tonight after 8 PM

This morningUp to 62°17° by 11 AM · Clear
This afternoonUp to 74°23° by 3 PM · Clear
TonightDown to 46°8° by 5 AM · Clear
Tomorrow morningUp to 61°16° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 72°22° by 3 PM · Mostly cloudy
Tomorrow nightDown to 45°7° by 4 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 5a	Clear	48°9° (likely 48°9° to 55°13°)	46°8°	0%	6 mph10 km/h from N, gusts 9 mph14 km/h	48%	0%	0
Sat 6a	Clear	49°9° (likely 49°9° to 56°13°)	46°8°	0%	7 mph11 km/h from N, gusts 9 mph14 km/h	49%	0%	0
Sat 7a	Sunny	48°9° (likely 48°9° to 56°13°)	45°7°	0%	7 mph11 km/h from N, gusts 9 mph14 km/h	52%	0%	0
Sat 8a	Sunny	48°9° (likely 48°9° to 56°13°)	45°7°	0%	6 mph10 km/h from N, gusts 7 mph11 km/h	55%	0%	0
Sat 9a	Sunny	53°12° (likely 53°12° to 58°14°)	53°12°	0%	7 mph11 km/h from N, gusts 8 mph13 km/h	54%	0%	0
Sat 10a	Sunny	58°14° (likely 58°14° to 64°18°)	58°14°	0%	6 mph10 km/h from NNE, gusts 9 mph15 km/h	46%	0%	1
Sat 11a	Sunny	62°17° (likely 62°17° to 68°20°)	63°17°	0%	6 mph10 km/h from NNE, gusts 12 mph19 km/h	41%	0%	3
Sat 12p	Sunny	68°20° (likely 68°20° to 72°22°)	68°20°	0%	3 mph5 km/h from NNE, gusts 10 mph16 km/h	38%	0%	4
Sat 1p	Sunny	70°21° (likely 70°21° to 75°24°)	70°21°	0%	2 mph3 km/h from NNE, gusts 8 mph14 km/h	35%	0%	4
Sat 2p	Sunny	73°23° (likely 72°22° to 77°25°)	73°23°	0%	1 mph2 km/h from NE, gusts 7 mph11 km/h	31%	0%	4
Sat 3p	Sunny	74°23° (likely 72°22° to 78°26°)	74°23°	0%	1 mph2 km/h from ESE, gusts 7 mph11 km/h	31%	0%	3
Sat 4p	Sunny	74°23° (likely 71°22° to 76°24°)	74°23°	0%	0 mph0 km/h, gusts 9 mph15 km/h	31%	0%	2
Sat 5p	Sunny	73°23° (likely 69°21° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 11 mph17 km/h	33%	0%	2
Sat 6p	Clear	69°21° (likely 64°18° to 69°21°)	69°21°	0%	0 mph0 km/h, gusts 11 mph18 km/h	41%	0%	1
Sat 7p	Clear	62°17° (likely 59°15° to 63°17°)	62°17°	0%	0 mph0 km/h, gusts 8 mph12 km/h	50%	8%	0
Sat 8p	Clear	58°14° (likely 57°14° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	57%	2%	0
Sat 9p	Clear	56°13° (likely 56°13° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 6 mph10 km/h	61%	0%	0
Sat 10p	Clear	54°12° (likely 54°12° to 58°14°)	54°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	64%	0%	0
Sat 11p	Clear	52°11° (likely 52°11° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 3 mph4 km/h	66%	0%	0
Sun 12a	Clear	51°11° (likely 51°11° to 55°13°)	51°11°	0%	0 mph0 km/h, gusts 2 mph4 km/h	69%	0%	0
Sun 1a	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 3 mph4 km/h	70%	36%	0
Sun 2a	Clear	49°9° (likely 49°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 2 mph4 km/h	71%	40%	0
Sun 3a	Clear	48°9° (likely 48°9° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	72%	29%	0
Sun 4a	Mostly clear	47°8° (likely 47°8° to 53°12°)	47°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	74%	51%	0
Sun 5a	Cloudy	46°8° (likely 46°8° to 52°11°)	46°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	74%	62%	0
Sun 6a	Cloudy	45°7° (likely 45°7° to 51°11°)	45°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	73%	67%	0
Sun 7a	Cloudy	45°7° (likely 45°7° to 51°11°)	45°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	78%	69%	0
Sun 8a	Partly sunny	45°7° (likely 45°7° to 51°11°)	45°7°	0%	2 mph3 km/h from NE, gusts 2 mph4 km/h	79%	65%	0
Sun 9a	Partly sunny	49°9° (likely 49°9° to 56°13°)	49°9°	0%	2 mph3 km/h from NE, gusts 3 mph5 km/h	74%	60%	1
Sun 10a	Partly sunny	56°13° (likely 56°13° to 62°17°)	56°13°	0%	2 mph3 km/h from NE, gusts 3 mph6 km/h	64%	67%	2
Sun 11a	Mostly sunny	61°16° (likely 61°16° to 66°19°)	61°16°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	54%	60%	3
Sun 12p	Cloudy	65°18° (likely 65°18° to 69°21°)	65°18°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	50%	76%	4
Sun 1p	Cloudy	68°20° (likely 68°20° to 71°22°)	68°20°	0%	1 mph2 km/h from SE, gusts 8 mph13 km/h	46%	76%	4
Sun 2p	Cloudy	71°22° (likely 69°21° to 72°22°)	71°22°	0%	2 mph3 km/h from SSW, gusts 8 mph13 km/h	42%	80%	4
Sun 3p	Cloudy	72°22° (likely 69°21° to 72°22°)	72°22°	0%	2 mph3 km/h from SSW, gusts 10 mph16 km/h	42%	85%	3
Sun 4p	Cloudy	72°22° (likely 67°19° to 72°22°)	72°22°	0%	2 mph3 km/h from SSW, gusts 11 mph17 km/h	42%	88%	3
Sun 5p	Cloudy	71°22° (likely 65°18° to 71°22°)	71°22°	0%	1 mph2 km/h from SSW, gusts 10 mph17 km/h	42%	91%	1
Sun 6p	Cloudy	67°19° (likely 61°16° to 67°19°)	67°19°	0%	1 mph2 km/h from SSW, gusts 9 mph15 km/h	50%	89%	0
Sun 7p	Cloudy	62°17° (likely 57°14° to 62°17°)	62°17°	0%	1 mph2 km/h from SSW, gusts 8 mph13 km/h	58%	89%	0
Sun 8p	Partly cloudy	57°14° (likely 53°12° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 9 mph15 km/h	65%	51%	0
Sun 9p	Partly cloudy	54°12° (likely 51°11° to 55°13°)	54°12°	0%	0 mph0 km/h, gusts 8 mph13 km/h	71%	32%	0
Sun 10p	Clear	52°11° (likely 50°10° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 8 mph13 km/h	76%	17%	0
Sun 11p	Clear	50°10° (likely 49°9° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 7 mph12 km/h	79%	20%	0
Mon 12a	Mostly clear	49°9° (likely 49°9° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	2%	0
Mon 1a	Clear	48°9° (likely 48°9° to 49°9°)	48°9°	0%	0 mph0 km/h, gusts 5 mph9 km/h	86%	15%	0
Mon 2a	Clear	47°8° (likely 47°8° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 6 mph9 km/h	88%	22%	0
Mon 3a	Clear	46°8° (likely 46°8° to 49°9°)	46°8°	0%	0 mph0 km/h, gusts 6 mph9 km/h	90%	24%	0
Mon 4a	Partly cloudy	45°7° (likely 45°7° to 49°9°)	45°7°	0%	0 mph0 km/h, gusts 6 mph9 km/h	91%	37%	0

Days ahead

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

Today, Oct 24. Sunny. High 74°23°, low 47°8°. Typical 77°25° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Official NWS forecast
Today: Sunny, with a high near 74. Northeast wind 0 to 7 mph.
Tonight: Mostly clear, with a low around 47. North wind around 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–78°26°
Low, likely
47°8°–54°12°
Typical high / low
77°25° / 46°8°
Wind
15 mph23 km/h, gusts 32 mph51 km/h
UV peak
5
Tomorrow, Oct 25. Partly sunny. High 72°22°, low 42°6°. Typical 76°24° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 72. Southeast wind around 2 mph.
Night: Partly cloudy, with a low around 42. South southwest wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–72°22°
Low, likely
42°6°–50°10°
Typical high / low
76°24° / 46°8°
Wind
8 mph13 km/h, gusts 15 mph24 km/h
UV peak
4
Monday, Oct 26. Fog. High 69°21°, low 40°4°. Typical 76°24° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 10am. Sunny, with a high near 69.
Night: Areas of fog after midnight. Mostly clear, with a low around 40.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
40°4°–48°9°
Typical high / low
76°24° / 46°8°
Wind
10 mph16 km/h, gusts 24 mph38 km/h
UV peak
5
Tuesday, Oct 27. Fog. High 69°21°, low 42°6°. Typical 76°24° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 9am. Mostly sunny, with a high near 69.
Night: Partly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
42°6°–46°8°
Typical high / low
76°24° / 46°8°
Wind
9 mph14 km/h, gusts 18 mph29 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 67°19°, low 44°7°. Typical 75°24° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Mostly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
43°6°–47°8°
Typical high / low
75°24° / 46°8°
Wind
5 mph7 km/h, gusts 15 mph24 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 64°18°, low 43°6°. Typical 75°24° / 46°8°. Rain 0.01 in0.3 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 10am, then a slight chance of rain. Partly sunny, with a high near 64.
Night: A chance of rain before 2am, then a chance of rain and patchy fog. Partly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
43°6°–49°9°
Typical high / low
75°24° / 46°8°
Wind
11 mph17 km/h, gusts 28 mph45 km/h
UV peak
4
Friday, Oct 30. Rain. High 63°17°, low 43°6°. Typical 74°23° / 45°7°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 50°10°
  Dry
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 a chance of rain and patchy fog. Partly sunny, with a high near 63.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–65°18°
Low, likely
41°5°–45°7°
Typical high / low
74°23° / 45°7°
Wind
8 mph12 km/h, gusts 24 mph38 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 63°17°, low 41°5°. Typical 74°23° / 45°7°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 51°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 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
59°15°–70°21°
Low, likely
35°2°–44°7°
Typical high / low
74°23° / 45°7°
Wind
6 mph9 km/h, gusts 20 mph31 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 68°20°, low 43°6°. Typical 74°23° / 45°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 47°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  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
61°16°–74°23°
Low, likely
39°4°–46°8°
Typical high / low
74°23° / 45°7°
Wind
5 mph9 km/h, gusts 18 mph28 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 65°18°, low 47°8°. Typical 73°23° / 45°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 53°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 54°12°
  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
58°14°–73°23°
Low, likely
39°4°–55°13°
Typical high / low
73°23° / 45°7°
Wind
7 mph12 km/h, gusts 23 mph37 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 74°, low 47°.
Tomorrow
Dry, high 72°, low 42°.
Monday
Dry, high 69°, low 40°, cooling off.
Rest of week
Mostly dry, highs 63–69°.

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

Napa River near St. Helena

1.8 mi

Below flood stage

Level: 0.5 ft

Forecast peak 1.1 ft Sat 5 AM

Reading from Sat 3:30 AM · NWS gauge page

Napa River near Napa

15 mi

Below flood stage

Level: 2.1 ft
Flow: 2 cfs

Forecast peak 1.9 ft Sat 5 AM

Reading from Sat 3:45 AM · NWS gauge page

Napa River at Lodi Lane

1.2 mi

Below flood stage

Level: 0.0 ft

Reading from Fri 5:30 PM · NWS gauge page

York Creek at Highway 29

1.8 mi

Below flood stage

Level: 0.9 ft

Reading from Sat 2:55 AM · NWS gauge page

For your home

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

Heating this week

About 38% less heating than a typical week.

This week 19Typical 30

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 8
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 43°F).

Open the windows?

Today, 11:00 AM–7:00 PM

Good stretch to open the windows.

Is this typical?

SANTA ROSA · official normals 1991–2020 · records 1902–2026

Oct 24, today vs a typical year

Today’s expected high is 3°2° colder than typical.

Last 7 days vs normal

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

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

Deer Park weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 51 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 23 min less
Golden hour: 5:42–6:35 PM; Morning 7:11–8:04 AM
Blue hour: 6:35–6:46 PM; Morning 7:01–7:11 AM; first light 7:01 AM

Stars tonight? Fair

Clear 5:03–7:01 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:49 AM · rises 5:19 PM
Full moon: Oct 25
New moon: Nov 8

Looking northwest from Deer Park. The highest point on the skyline is about 4,200 ft, 13 mi away.Skyline from USGS elevation data, heights drawn up to 5× taller. Sky, sun and moon as they are now.

1 active weather alert

Coastal Flood Advisory

Deer Park, CA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Napa River near St. Helena

Napa River near Napa

Napa River at Lodi Lane

York Creek at Highway 29

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? Fair

Moon