Coastal Flood Advisory
Starts in 9 h 40 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 9:35 PM PDT at KDVO

Novato, CA weather

Clear and 54°12°.

Mostly agree

Now 54°12°

Clear

Wind: Calm; Light through 10 AM
Dew point: 48°9°; Comfortable · down to 39°4° by 1 AM
UV tomorrow: 5Moderate; Moderate 11 AM–5 PM · peak 5
Air quality: 23Good; Main pollutant: Ozone
Pressure: 30.03 inHg1017 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

5°3° cooler than this time yesterday (59°15° then, 54°12° now)

Good hours for

Low 47°8° tomorrow at 7 AM
Above 60°16° tomorrow by 10 AM
High 76°24° tomorrow at 3 PM
Drops 12°7° tomorrow 5–8 PM (74°23° → 62°17°)
Below 60°16° tomorrow night after 8 PM

TonightDown to 48°9° by 5 AM · Clear
Tomorrow morningUp to 65°18° by 11 AM · Clear
Tomorrow afternoonUp to 76°24° by 3 PM · Clear
Tomorrow nightDown to 46°8° by 5 AM · Partly cloudy
Sunday morningUp to 63°17° by 11 AM · Mostly cloudy
Sunday afternoonUp to 75°24° by 4 PM · Mostly cloudy
Sunday nightDown to 59°15° by 9 PM · Mostly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Fri 10p	Clear	55°13° (likely 55°13° to 59°15°)	55°13°	0%	1 mph2 km/h from WNW, gusts 7 mph11 km/h	68%	0%	0
Fri 11p	Clear	55°13° (likely 54°12° to 61°16°)	55°13°	0%	2 mph3 km/h from WNW, gusts 6 mph10 km/h	65%	0%	0
Sat 12a	Clear	54°12° (likely 54°12° to 58°14°)	54°12°	0%	2 mph3 km/h from WNW, gusts 7 mph11 km/h	64%	2%	0
Sat 1a	Clear	53°12° (likely 53°12° to 57°14°)	53°12°	0%	1 mph2 km/h from NW, gusts 8 mph13 km/h	60%	6%	0
Sat 2a	Clear	51°11° (likely 51°11° to 57°14°)	51°11°	0%	1 mph2 km/h from WNW, gusts 8 mph13 km/h	59%	8%	0
Sat 3a	Clear	50°10° (likely 50°10° to 57°14°)	50°10°	0%	1 mph2 km/h from NW, gusts 6 mph10 km/h	58%	8%	0
Sat 4a	Clear	49°9° (likely 49°9° to 56°13°)	49°9°	0%	1 mph2 km/h from NW, gusts 6 mph9 km/h	59%	10%	0
Sat 5a	Clear	48°9° (likely 48°9° to 56°13°)	48°9°	0%	0 mph0 km/h, gusts 4 mph7 km/h	58%	11%	0
Sat 6a	Clear	48°9° (likely 48°9° to 54°12°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	60%	11%	0
Sat 7a	Sunny	47°8° (likely 47°8° to 53°12°)	47°8°	0%	0 mph0 km/h, gusts 3 mph4 km/h	62%	12%	0
Sat 8a	Sunny	48°9° (likely 48°9° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	62%	12%	0
Sat 9a	Sunny	54°12° (likely 53°12° to 56°13°)	54°12°	0%	1 mph2 km/h from WNW, gusts 3 mph5 km/h	58%	12%	1
Sat 10a	Sunny	61°16° (likely 59°15° to 65°18°)	61°16°	0%	1 mph2 km/h from E, gusts 3 mph4 km/h	48%	0%	2
Sat 11a	Sunny	65°18° (likely 63°17° to 70°21°)	65°18°	0%	2 mph3 km/h from E, gusts 4 mph6 km/h	42%	0%	3
Sat 12p	Sunny	70°21° (likely 66°19° to 72°22°)	70°21°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	38%	0%	4
Sat 1p	Sunny	73°23° (likely 68°20° to 74°23°)	73°23°	0%	2 mph3 km/h from ESE, gusts 4 mph6 km/h	34%	0%	5
Sat 2p	Sunny	74°23° (likely 69°21° to 76°24°)	75°24°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	31%	0%	5
Sat 3p	Sunny	76°24° (likely 70°21° to 77°25°)	76°24°	0%	0 mph0 km/h, gusts 5 mph8 km/h	30%	0%	4
Sat 4p	Sunny	75°24° (likely 70°21° to 77°25°)	75°24°	0%	1 mph2 km/h from SSW, gusts 5 mph9 km/h	32%	8%	3
Sat 5p	Sunny	74°23° (likely 68°20° to 75°24°)	74°23°	0%	2 mph3 km/h from W, gusts 8 mph13 km/h	36%	40%	2
Sat 6p	Clear	70°21° (likely 63°17° to 70°21°)	70°21°	0%	1 mph2 km/h from W, gusts 9 mph15 km/h	45%	20%	1
Sat 7p	Clear	62°17° (likely 60°16° to 64°18°)	62°17°	0%	0 mph0 km/h, gusts 9 mph14 km/h	56%	30%	0
Sat 8p	Clear	58°14° (likely 57°14° to 61°16°)	58°14°	0%	0 mph0 km/h, gusts 6 mph9 km/h	62%	39%	0
Sat 9p	Clear	56°13° (likely 55°13° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 3 mph5 km/h	66%	36%	0
Sat 10p	Clear	54°12° (likely 53°12° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	71%	22%	0
Sat 11p	Mostly clear	53°12° (likely 52°11° to 55°13°)	53°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	73%	51%	0
Sun 12a	Mostly clear	52°11° (likely 50°10° to 54°12°)	52°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	77%	21%	0
Sun 1a	Mostly clear	51°11° (likely 50°10° to 53°12°)	51°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	76%	21%	0
Sun 2a	Partly cloudy	49°9° (likely 49°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 2 mph4 km/h	79%	47%	0
Sun 3a	Mostly clear	48°9° (likely 48°9° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	79%	66%	0
Sun 4a	Cloudy	47°8° (likely 47°8° to 53°12°)	47°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	81%	70%	0
Sun 5a	Cloudy	46°8° (likely 46°8° to 52°11°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	82%	74%	0
Sun 6a	Cloudy	46°8° (likely 46°8° to 51°11°)	47°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	85%	77%	0
Sun 7a	Cloudy	46°8° (likely 46°8° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 3 mph6 km/h	87%	83%	0
Sun 8a	Partly sunny	46°8° (likely 46°8° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 5 mph8 km/h	85%	84%	0
Sun 9a	Partly sunny	51°11° (likely 50°10° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 4 mph6 km/h	79%	88%	1
Sun 10a	Partly sunny	57°14° (likely 53°12° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	69%	89%	2
Sun 11a	Mostly sunny	63°17° (likely 56°13° to 63°17°)	63°17°	0%	3 mph5 km/h from E, gusts 4 mph7 km/h	59%	79%	3
Sun 12p	Mostly sunny	67°19° (likely 60°16° to 67°19°)	67°19°	0%	3 mph5 km/h from E, gusts 4 mph6 km/h	52%	79%	4
Sun 1p	Cloudy	70°21° (likely 63°17° to 70°21°)	70°21°	0%	3 mph5 km/h from E, gusts 6 mph9 km/h	46%	82%	4
Sun 2p	Cloudy	72°22° (likely 65°18° to 72°22°)	73°23°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	42%	80%	4
Sun 3p	Cloudy	74°23° (likely 66°19° to 74°23°)	74°23°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	39%	81%	4
Sun 4p	Cloudy	75°24° (likely 67°19° to 75°24°)	75°24°	0%	2 mph3 km/h from S, gusts 7 mph11 km/h	38%	82%	3
Sun 5p	Cloudy	74°23° (likely 66°19° to 74°23°)	74°23°	0%	0 mph0 km/h, gusts 7 mph11 km/h	40%	86%	1
Sun 6p	Cloudy	71°22° (likely 63°17° to 71°22°)	71°22°	0%	0 mph0 km/h, gusts 5 mph7 km/h	46%	86%	0
Sun 7p	Cloudy	66°19° (likely 59°15° to 66°19°)	67°19°	0%	0 mph0 km/h, gusts 5 mph7 km/h	55%	84%	0
Sun 8p	Cloudy	62°17° (likely 56°13° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 5 mph8 km/h	63%	77%	0
Sun 9p	Partly cloudy	59°15° (likely 53°12° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 5 mph7 km/h	68%	72%	0

Days ahead

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

Today, Oct 23. Fog. High 72°22°, low 47°8°. Typical 75°24° / 46°8°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Tonight: Clear, with a low around 47. West northwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–75°24°
Low, likely
47°8°–54°12°
Typical high / low
75°24° / 46°8°
Wind
10 mph16 km/h, gusts 16 mph25 km/h
UV peak
5
Tomorrow, Oct 24. Sunny. High 76°24°, low 46°8°. Typical 75°24° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°8°
  Dry
Official NWS forecast
Day: Sunny. High near 76, with temperatures falling to around 74 in the afternoon. East southeast wind around 2 mph.
Night: Mostly clear, with a low around 46. Northwest wind around 1 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–77°25°
Low, likely
46°8°–53°12°
Typical high / low
75°24° / 46°8°
Wind
8 mph12 km/h, gusts 13 mph22 km/h
UV peak
5
Sunday, Oct 25. Partly sunny. High 75°24°, low 46°8°. Typical 74°23° / 46°8°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Partly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°11°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 75. Southeast wind 0 to 3 mph.
Night: Partly cloudy, with a low around 46. Wind around 0 mph.
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 75°24°).
High, likely
67°19°–75°24°
Low, likely
46°8°–51°11°
Typical high / low
74°23° / 46°8°
Wind
6 mph10 km/h
UV peak
4
Monday, Oct 26. Fog. High 70°21°, low 44°7°. Typical 74°23° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog between 7am and 9am. Mostly sunny, with a high near 70.
Night: Mostly clear, with a low around 44.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–70°21°
Low, likely
44°7°–53°12°
Typical high / low
74°23° / 46°8°
Wind
12 mph19 km/h, gusts 19 mph30 km/h
UV peak
4
Tuesday, Oct 27. Fog. High 69°21°, low 44°7°. Typical 74°23° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog between 7am and 9am. Sunny, with a high near 69.
Night: Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–69°21°
Low, likely
44°7°–50°10°
Typical high / low
74°23° / 45°7°
Wind
12 mph19 km/h
UV peak
5
Wednesday, Oct 28. Fog. High 69°21°, low 46°8°. Typical 73°23° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog between 8am and 9am. Mostly sunny, with a high near 69.
Night: Partly cloudy, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–69°21°
Low, likely
46°8°–52°11°
Typical high / low
73°23° / 45°7°
Wind
9 mph14 km/h
UV peak
4
Thursday, Oct 29. Fog. High 67°19°, low 47°8°. Typical 73°23° / 45°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°10°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog between 7am and 9am. Mostly sunny, with a high near 67.
Night: A slight chance of rain showers after 5am. Partly cloudy, with a low around 47.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–67°19°
Low, likely
47°8°–52°11°
Typical high / low
73°23° / 45°7°
Wind
9 mph15 km/h, gusts 17 mph27 km/h
UV peak
4
Friday, Oct 30. Fog. High 66°19°, low 47°8°. Typical 72°22° / 45°7°. Rain 0.04 in1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 48°9°
  30% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Partly cloudy, 53°12°
  30% chance
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog and a chance of rain showers. Mostly sunny, with a high near 66.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–68°20°
Low, likely
43°6°–51°11°
Typical high / low
72°22° / 45°7°
Wind
9 mph15 km/h, gusts 16 mph26 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 64°18°, low 46°8°. Typical 72°22° / 45°7°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 47°8°
  30% chance
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  30% chance
3. Evening
  6 PM–midnight
  Clear, 55°13°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 48°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
60°16°–69°21°
Low, likely
39°4°–49°9°
Typical high / low
72°22° / 45°7°
Wind
6 mph9 km/h, gusts 12 mph19 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 68°20°, low 47°8°. Typical 72°22° / 44°7°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  30% chance
2. Afternoon
  noon–6 PM
  Sunny, 69°20°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 58°15°
  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
64°18°–74°23°
Low, likely
38°3°–51°11°
Typical high / low
72°22° / 44°7°
Wind
8 mph13 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 72°, low 47°.
Tomorrow
Dry, high 76°, low 46°, warming up.
Sunday
Dry, high 75°, low 46°.
Rest of week
Mostly dry, highs 64–70°.

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

Novato Creek at Pacheco and San Jose Creeks

1.5 mi

Level: 2.5 ft

Reading from Fri 8:35 PM · NWS gauge page

Novato Creek at Novato (ALERT)

2.3 mi

Below flood stage

Level: 2.4 ft

Reading from Fri 2:10 PM · NWS gauge page

Novato Creek at Novato (USGS)

2.3 mi

Below flood stage

Level: 2.9 ft
Flow: 2 cfs

Reading from Fri 8:30 PM · NWS gauge page

Sleepy Hollow Creek at RVFD Fire Station 20

6.6 mi

Below flood stage

Level: 2.1 ft

Reading from Fri 12:30 PM · NWS gauge page

For your home

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

Heating this week

About 55% less heating than a typical week.

This week 16Typical 37

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 48°F).

Open the windows?

Sat, 10:00 AM–7:00 PM

Good stretch to open the windows.

Is this typical?

SONOMA · official normals 1991–2020 · records 1893–2026

Oct 23, today vs a typical year

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

Last 7 days vs normal

—SatOct 17
—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 54 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 23 min less
Golden hour: 5:45–6:38 PM; Morning 7:10–8:03 AM
Blue hour: 6:38–6:48 PM; Morning 7:00–7:10 AM; first light 7:00 AM

Stars tonight? Good

Clear 10:20 PM–7:01 AM; moon 96% lit, sets 5:49 AM.

Moon

Waxing gibbous

95% lit · growing

Today: sets 4:42 AM · rises 4:53 PM
Full moon: Oct 25
New moon: Nov 8

Looking north from Novato. The highest point on the skyline is about 2,800 ft, 33 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Coastal Flood Advisory

Novato, CA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

Novato Creek at Pacheco and San Jose Creeks

Novato Creek at Novato (ALERT)

Novato Creek at Novato (USGS)

Sleepy Hollow Creek at RVFD Fire Station 20

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 23, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Good

Moon