Coastal Flood Advisory
Ends in 5 days 5 h
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, 1.5 ft above normal (7.3 ft MLLW) at 11:07 AM Sunday 10/25, 1.6 ft above normal (7.4 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 8:55 AM PDT at KDVO

Glen Ellen, CA weather

Sunny and 52°11°, jacket by 9 PM.

Mostly agree

Now 52°11°

Sunny

Wind: 5 mph8 km/h; From the north-northwest. Up to 5 mph8 km/h through 9 PM
Dew point: 46°8°; Comfortable · down to 38°3° by 10 AM
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 25Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.07 inHg1018 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, 52°11° now)

Good hours for

Above 70°21° today by noon
High 77°25° today at 3 PM
Drops 13°7° today 5–8 PM (73°23° → 60°16°)
Below 60°16° tonight after 8 PM
Low 46°8° tomorrow at 6 AM

This morningUp to 66°19° by 11 AM · Clear
This afternoonUp to 77°25° by 3 PM · Clear
TonightDown to 48°9° by 4 AM · Partly cloudy
Tomorrow morningUp to 64°18° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 74°23° by 3 PM · Cloudy
Tomorrow nightDown to 47°8° by 4 AM · Partly cloudy
Monday morningNear 46°8° · 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 9a	Sunny	56°13° (likely 52°11° to 63°17°)	56°13°	0%	5 mph8 km/h from N, gusts 7 mph12 km/h	48%	0%	0
Sat 10a	Sunny	61°16° (likely 61°16° to 66°19°)	61°16°	0%	5 mph8 km/h from NNE, gusts 12 mph19 km/h	43%	0%	1
Sat 11a	Sunny	66°19° (likely 66°19° to 68°20°)	66°19°	0%	3 mph5 km/h from NNE, gusts 13 mph21 km/h	40%	0%	3
Sat 12p	Sunny	71°22° (likely 69°21° to 71°22°)	71°22°	0%	1 mph2 km/h from NE, gusts 11 mph17 km/h	37%	0%	4
Sat 1p	Sunny	73°23° (likely 70°21° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 8 mph12 km/h	34%	0%	4
Sat 2p	Sunny	76°24° (likely 71°22° to 76°24°)	76°24°	0%	0 mph0 km/h, gusts 7 mph11 km/h	31%	0%	4
Sat 3p	Sunny	77°25° (likely 71°22° to 77°25°)	77°25°	0%	0 mph0 km/h, gusts 6 mph9 km/h	31%	0%	3
Sat 4p	Sunny	75°24° (likely 70°21° to 75°24°)	75°24°	0%	0 mph0 km/h, gusts 11 mph18 km/h	31%	0%	2
Sat 5p	Sunny	73°23° (likely 68°20° to 73°23°)	73°23°	0%	2 mph3 km/h from W, gusts 10 mph16 km/h	33%	0%	2
Sat 6p	Clear	68°20° (likely 63°17° to 68°20°)	68°20°	0%	0 mph0 km/h, gusts 11 mph17 km/h	43%	0%	1
Sat 7p	Clear	60°16° (likely 58°14° to 63°17°)	60°16°	0%	0 mph0 km/h, gusts 9 mph15 km/h	52%	0%	0
Sat 8p	Clear	56°13° (likely 54°12° to 61°16°)	56°13°	0%	0 mph0 km/h, gusts 7 mph11 km/h	59%	1%	0
Sat 9p	Clear	55°13° (likely 52°11° to 59°15°)	55°13°	0%	0 mph0 km/h, gusts 6 mph10 km/h	62%	34%	0
Sat 10p	Clear	54°12° (likely 51°11° to 58°14°)	54°12°	0%	0 mph0 km/h, gusts 6 mph9 km/h	63%	2%	0
Sat 11p	Clear	53°12° (likely 50°10° to 59°15°)	53°12°	0%	0 mph0 km/h, gusts 6 mph9 km/h	63%	4%	0
Sun 12a	Clear	52°11° (likely 49°9° to 59°15°)	52°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	66%	7%	0
Sun 1a	Mostly clear	51°11° (likely 48°9° to 58°14°)	51°11°	0%	0 mph0 km/h, gusts 5 mph7 km/h	66%	44%	0
Sun 2a	Mostly clear	50°10° (likely 48°9° to 57°14°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	67%	51%	0
Sun 3a	Mostly clear	49°9° (likely 48°9° to 56°13°)	49°9°	0%	0 mph0 km/h, gusts 3 mph6 km/h	65%	42%	0
Sun 4a	Mostly clear	48°9° (likely 47°8° to 55°13°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	64%	68%	0
Sun 5a	Partly cloudy	48°9° (likely 47°8° to 54°12°)	48°9°	0%	1 mph2 km/h from ENE, gusts 3 mph5 km/h	63%	75%	0
Sun 6a	Partly cloudy	46°8° (likely 46°8° to 53°12°)	46°8°	0%	1 mph2 km/h from ENE, gusts 3 mph4 km/h	68%	75%	0
Sun 7a	Partly sunny	47°8° (likely 45°7° to 52°11°)	47°8°	0%	1 mph2 km/h from ENE, gusts 3 mph5 km/h	70%	59%	0
Sun 8a	Partly sunny	46°8° (likely 46°8° to 52°11°)	47°8°	0%	2 mph3 km/h from E, gusts 3 mph5 km/h	75%	71%	0
Sun 9a	Partly sunny	51°11° (likely 50°10° to 55°13°)	51°11°	0%	2 mph3 km/h from E, gusts 3 mph5 km/h	70%	78%	1
Sun 10a	Cloudy	59°15° (likely 56°13° to 60°16°)	59°15°	0%	2 mph3 km/h from E, gusts 4 mph7 km/h	59%	81%	2
Sun 11a	Cloudy	64°18° (likely 61°16° to 64°18°)	64°18°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	53%	79%	3
Sun 12p	Cloudy	68°20° (likely 65°18° to 68°20°)	68°20°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	49%	82%	4
Sun 1p	Cloudy	71°22° (likely 67°19° to 71°22°)	71°22°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	46%	84%	4
Sun 2p	Cloudy	73°23° (likely 68°20° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 5 mph8 km/h	42%	88%	4
Sun 3p	Cloudy	74°23° (likely 68°20° to 74°23°)	74°23°	0%	0 mph0 km/h, gusts 7 mph12 km/h	42%	89%	3
Sun 4p	Cloudy	72°22° (likely 67°19° to 72°22°)	73°23°	0%	0 mph0 km/h, gusts 8 mph13 km/h	42%	88%	3
Sun 5p	Cloudy	71°22° (likely 66°19° to 71°22°)	71°22°	0%	0 mph0 km/h, gusts 7 mph12 km/h	42%	92%	1
Sun 6p	Cloudy	66°19° (likely 62°17° to 66°19°)	66°19°	0%	0 mph0 km/h, gusts 6 mph10 km/h	51%	91%	0
Sun 7p	Cloudy	61°16° (likely 58°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 8 mph13 km/h	59%	92%	0
Sun 8p	Partly cloudy	56°13° (likely 55°13° to 57°14°)	56°13°	0%	0 mph0 km/h, gusts 10 mph16 km/h	65%	79%	0
Sun 9p	Partly cloudy	54°12° (likely 53°12° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 9 mph15 km/h	70%	49%	0
Sun 10p	Clear	52°11° (likely 51°11° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 9 mph15 km/h	72%	7%	0
Sun 11p	Clear	52°11° (likely 49°9° to 52°11°)	52°11°	0%	0 mph0 km/h, gusts 7 mph12 km/h	75%	4%	0
Mon 12a	Clear	50°10° (likely 48°9° to 50°10°)	50°10°	0%	0 mph0 km/h, gusts 6 mph10 km/h	78%	8%	0
Mon 1a	Clear	50°10° (likely 47°8° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 9 mph14 km/h	81%	24%	0
Mon 2a	Partly cloudy	49°9° (likely 47°8° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 10 mph16 km/h	83%	43%	0
Mon 3a	Partly cloudy	48°9° (likely 47°8° to 50°10°)	48°9°	0%	0 mph0 km/h, gusts 10 mph15 km/h	83%	50%	0
Mon 4a	Partly cloudy	47°8° (likely 47°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 10 mph16 km/h	82%	40%	0
Mon 5a	Partly cloudy	47°8° (likely 46°8° to 50°10°)	47°8°	0%	1 mph2 km/h from W, gusts 10 mph15 km/h	83%	53%	0
Mon 6a	Partly cloudy	46°8° (likely 44°7° to 49°9°)	46°8°	0%	1 mph2 km/h from W, gusts 10 mph16 km/h	87%	68%	0
Mon 7a	Partly sunny	45°7° (likely 44°7° to 49°9°)	45°7°	0%	1 mph2 km/h from W, gusts 11 mph18 km/h	91%	59%	0
Mon 8a	Partly sunny	46°8° (likely 45°7° to 49°9°)	45°7°	0%	3 mph5 km/h from W, gusts 12 mph20 km/h	93%	30%	0

Days ahead

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

Today, Oct 24. Sunny. High 77°25°, low 44°7°. Typical 75°24° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 66°19°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 48°9°
  Dry
Official NWS forecast
Today: Sunny. High near 77, with temperatures falling to around 73 in the afternoon. Northeast wind 0 to 5 mph.
Tonight: Mostly clear. Low around 44, with temperatures rising to around 48 overnight. East wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–77°25°
Low, likely
44°7°–57°14°
Typical high / low
75°24° / 46°8°
Wind
11 mph18 km/h, gusts 19 mph30 km/h
UV peak
5
Tomorrow, Oct 25. Partly sunny. High 75°24°, low 44°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, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 47°8°
  Dry
Official NWS forecast
Day: Mostly sunny. High near 75, with temperatures falling to around 71 in the afternoon. Southeast wind around 2 mph.
Night: Partly cloudy, with a low around 44. West wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–75°24°
Low, likely
44°7°–51°11°
Typical high / low
74°23° / 46°8°
Wind
9 mph14 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 70°21°, low 42°6°. Typical 74°23° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  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 70. West wind 1 to 6 mph.
Night: Mostly clear, with a low around 42.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–70°21°
Low, likely
42°6°–48°9°
Typical high / low
74°23° / 46°8°
Wind
12 mph19 km/h, gusts 24 mph38 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 71°22°, low 44°7°. Typical 74°23° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 65°19°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 71.
Night: Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–71°22°
Low, likely
42°6°–45°7°
Typical high / low
74°23° / 45°7°
Wind
11 mph17 km/h, gusts 17 mph27 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 69°21°, low 44°7°. Typical 73°23° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  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 69.
Night: Mostly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–69°21°
Low, likely
43°6°–46°8°
Typical high / low
73°23° / 45°7°
Wind
6 mph10 km/h, gusts 15 mph23 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 67°19°, low 44°7°. Typical 73°23° / 45°7°. Rain, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 49°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, 43°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog between 8am and 9am, then a chance of rain. Partly sunny, with a high near 67.
Night: A chance of rain. Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
44°7°–49°9°
Typical high / low
73°23° / 45°7°
Wind
11 mph18 km/h, gusts 30 mph47 km/h
UV peak
4
Friday, Oct 30. Rain. High 66°19°, low 43°6°. Typical 72°22° / 45°7°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain before 7am, then a chance of rain and patchy fog. Partly sunny, with a high near 66.
Night: A chance of rain. Mostly cloudy, with a low around 43.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–66°19°
Low, likely
40°4°–43°6°
Typical high / low
72°22° / 45°7°
Wind
11 mph17 km/h, gusts 26 mph42 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 62°17°, low 41°5°. Typical 72°22° / 45°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  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°–69°21°
Low, likely
35°2°–43°6°
Typical high / low
72°22° / 45°7°
Wind
10 mph17 km/h, gusts 22 mph36 km/h
UV peak
4
Sunday, Nov 1. Sunny. High 67°19°, low 42°6°. Typical 72°22° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  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
59°15°–75°24°
Low, likely
40°4°–44°7°
Typical high / low
72°22° / 44°7°
Wind
9 mph14 km/h, gusts 23 mph37 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 64°18°, low 46°8°. Typical 71°22° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 53°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
57°14°–71°22°
Low, likely
40°4°–54°12°
Typical high / low
71°22° / 44°7°
Wind
8 mph13 km/h, gusts 24 mph38 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 77°, low 44°.
Tomorrow
Dry, high 75°, low 44°.
Monday
Dry, high 70°, low 42°, cooling off.
Rest of week
Mostly dry, highs 62–71°.

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

Sonoma Creek at Agua Caliente

3.5 mi

Below flood stage

Level: 8.8 ft
Flow: 1 cfs

Reading from Sat 7:45 AM · NWS gauge page

Sonoma Creek at Kenwood

4.5 mi

Below flood stage

Level: 3.7 ft

Reading from Sat 8 AM · NWS gauge page

Nathanson Creek at Sonoma

7.0 mi

Level: -0.2 ft

Reading from Sat 8:15 AM · NWS gauge page

Willow Brook at Penngrove Park

7.7 mi

Below flood stage

Level: 55.6 ft

Reading from Sat 8 AM · 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: 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 46°F).

Open the windows?

Today, 10:00 AM–7:00 PM

Good stretch to open the windows.

Is this typical?

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

Oct 24, today vs a typical year

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

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

Glen Ellen 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 22 min less
Golden hour: 5:43–6:36 PM; Morning 7:11–8:04 AM
Blue hour: 6:36–6:46 PM; Morning 7:01–7:11 AM; first light 7:01 AM

Stars tonight? Fair

Mostly clear 6:46–9 PM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

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

Looking north from Glen Ellen. The highest point on the skyline is about 4,200 ft, 22 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

Glen Ellen, CA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Sonoma Creek at Agua Caliente

Sonoma Creek at Kenwood

Nathanson Creek at Sonoma

Willow Brook at Penngrove Park

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