Coastal Flood Advisory
Ends in 5 days
When
Until 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 1.5 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 1:55 PM PDT at KNUQ

West Menlo Park, CA weather

Sunny and 72°22°.

Mostly agree

Now 72°22°

Sunny

Wind: 3 mph5 km/h; Up to 5 mph8 km/h through 2 AM
Dew point: 39°4°; Comfortable · up to 48°9° by 6 PM
UV index: 4Moderate; Moderate until 5 PM · peak 5
Air quality: 34Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30 inHg1016 hPa; Falling · −0.05 inHg−1.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 73°23° today at 5 PM
Below 60°16° tonight after 9 PM
Low 50°10° tomorrow at 6 AM
Above 60°16° tomorrow by 10 AM

This afternoonNear 72°22° · Clear
TonightDown to 52°11° by 3 AM · Clear
Tomorrow morningUp to 64°18° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 73°23° by 3 PM · Mostly cloudy
Tomorrow nightDown to 50°10° by 5 AM · Partly cloudy
Monday morningUp to 63°17° by 11 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 2p	Sunny	70°21° (likely 66°19° to 72°22°)	70°21°	0%	5 mph8 km/h from N, gusts 9 mph14 km/h	41%	0%	5
Sat 3p	Sunny	71°22° (likely 67°19° to 73°23°)	71°22°	0%	5 mph8 km/h from N, gusts 8 mph14 km/h	39%	0%	4
Sat 4p	Sunny	72°22° (likely 68°20° to 73°23°)	72°22°	0%	5 mph8 km/h from NNW, gusts 8 mph14 km/h	40%	0%	3
Sat 5p	Sunny	73°23° (likely 67°19° to 73°23°)	73°23°	0%	5 mph8 km/h from NNW, gusts 8 mph13 km/h	40%	0%	2
Sat 6p	Clear	70°21° (likely 62°17° to 70°21°)	70°21°	0%	3 mph5 km/h from NNW, gusts 7 mph12 km/h	46%	0%	1
Sat 7p	Clear	66°19° (likely 59°15° to 66°19°)	66°19°	0%	2 mph3 km/h from WNW, gusts 7 mph11 km/h	54%	0%	0
Sat 8p	Clear	63°17° (likely 57°14° to 63°17°)	63°17°	0%	2 mph3 km/h from NNW, gusts 5 mph8 km/h	61%	0%	0
Sat 9p	Clear	58°14° (likely 55°13° to 58°14°)	58°14°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	65%	0%	0
Sat 10p	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	2 mph3 km/h from S, gusts 5 mph7 km/h	67%	0%	0
Sat 11p	Clear	56°13° (likely 52°11° to 56°13°)	56°13°	0%	2 mph3 km/h from S, gusts 4 mph7 km/h	68%	0%	0
Sun 12a	Clear	55°13° (likely 52°11° to 55°13°)	55°13°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	68%	1%	0
Sun 1a	Clear	54°12° (likely 52°11° to 54°12°)	54°12°	0%	1 mph2 km/h from SSW, gusts 3 mph5 km/h	69%	0%	0
Sun 2a	Clear	54°12° (likely 51°11° to 54°12°)	54°12°	0%	1 mph2 km/h from SSW, gusts 3 mph4 km/h	68%	0%	0
Sun 3a	Clear	52°11° (likely 50°10° to 53°12°)	52°11°	0%	1 mph2 km/h from SW, gusts 3 mph5 km/h	68%	6%	0
Sun 4a	Clear	52°11° (likely 50°10° to 52°11°)	52°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	69%	16%	0
Sun 5a	Partly cloudy	52°11° (likely 50°10° to 52°11°)	52°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	69%	53%	0
Sun 6a	Partly cloudy	50°10° (likely 49°9° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 3 mph4 km/h	70%	55%	0
Sun 7a	Cloudy	51°11° (likely 48°9° to 51°11°)	51°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	71%	58%	0
Sun 8a	Cloudy	51°11° (likely 48°9° to 52°11°)	51°11°	0%	1 mph2 km/h from SW, gusts 3 mph4 km/h	73%	74%	0
Sun 9a	Cloudy	56°13° (likely 52°11° to 56°13°)	56°13°	0%	1 mph2 km/h from SSW, gusts 2 mph3 km/h	70%	79%	1
Sun 10a	Cloudy	61°16° (likely 57°14° to 61°16°)	61°16°	0%	1 mph2 km/h from NE, gusts 3 mph5 km/h	65%	77%	2
Sun 11a	Cloudy	64°18° (likely 61°16° to 65°18°)	65°18°	0%	1 mph2 km/h from NNE, gusts 5 mph8 km/h	60%	75%	3
Sun 12p	Mostly cloudy	68°20° (likely 64°18° to 68°20°)	68°20°	0%	2 mph3 km/h from N, gusts 6 mph9 km/h	58%	68%	4
Sun 1p	Mostly cloudy	70°21° (likely 66°19° to 70°21°)	70°21°	0%	3 mph5 km/h from N, gusts 7 mph11 km/h	57%	70%	4
Sun 2p	Cloudy	71°22° (likely 67°19° to 71°22°)	71°22°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	54%	80%	4
Sun 3p	Cloudy	73°23° (likely 68°20° to 73°23°)	73°23°	0%	5 mph8 km/h from NNW, gusts 10 mph17 km/h	52%	79%	3
Sun 4p	Cloudy	72°22° (likely 67°19° to 72°22°)	72°22°	0%	5 mph8 km/h from WSW, gusts 7 mph11 km/h	52%	80%	2
Sun 5p	Cloudy	71°22° (likely 64°18° to 71°22°)	71°22°	0%	5 mph8 km/h from WSW, gusts 11 mph17 km/h	52%	80%	1
Sun 6p	Partly cloudy	68°20° (likely 60°16° to 68°20°)	68°20°	0%	2 mph3 km/h from WSW, gusts 11 mph18 km/h	59%	80%	0
Sun 7p	Partly cloudy	62°17° (likely 57°14° to 62°17°)	63°17°	0%	2 mph3 km/h from W, gusts 10 mph16 km/h	68%	76%	0
Sun 8p	Cloudy	60°16° (likely 54°12° to 60°16°)	60°16°	0%	2 mph3 km/h from W, gusts 8 mph14 km/h	74%	76%	0
Sun 9p	Partly cloudy	58°14° (likely 53°12° to 58°14°)	58°14°	0%	2 mph3 km/h from WSW, gusts 7 mph11 km/h	79%	42%	0
Sun 10p	Clear	56°13° (likely 51°11° to 56°13°)	56°13°	0%	2 mph3 km/h from WSW, gusts 7 mph12 km/h	82%	27%	0
Sun 11p	Clear	55°13° (likely 50°10° to 55°13°)	55°13°	0%	2 mph3 km/h from SW, gusts 6 mph10 km/h	83%	29%	0
Mon 12a	Clear	54°12° (likely 50°10° to 54°12°)	54°12°	0%	2 mph3 km/h from SW, gusts 6 mph9 km/h	84%	31%	0
Mon 1a	Clear	53°12° (likely 49°9° to 53°12°)	53°12°	0%	2 mph3 km/h from SW, gusts 5 mph8 km/h	85%	35%	0
Mon 2a	Clear	52°11° (likely 48°9° to 54°12°)	52°11°	0%	2 mph3 km/h from SW, gusts 5 mph8 km/h	86%	36%	0
Mon 3a	Partly cloudy	52°11° (likely 48°9° to 54°12°)	52°11°	0%	2 mph3 km/h from SW, gusts 4 mph7 km/h	88%	34%	0
Mon 4a	Partly cloudy	51°11° (likely 48°9° to 53°12°)	51°11°	0%	2 mph3 km/h from SW, gusts 5 mph8 km/h	89%	36%	0
Mon 5a	Clear	50°10° (likely 48°9° to 53°12°)	50°10°	0%	2 mph3 km/h from WSW, gusts 6 mph10 km/h	90%	24%	0
Mon 6a	Clear	51°11° (likely 48°9° to 53°12°)	51°11°	0%	2 mph3 km/h from WSW, gusts 7 mph12 km/h	91%	24%	0
Mon 7a	Sunny	51°11° (likely 48°9° to 53°12°)	51°11°	0%	2 mph3 km/h from WSW, gusts 7 mph11 km/h	93%	17%	0
Mon 8a	Sunny	51°11° (likely 48°9° to 53°12°)	51°11°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	94%	18%	0
Mon 9a	Partly sunny	54°12° (likely 53°12° to 56°13°)	54°12°	0%	2 mph3 km/h from W, gusts 9 mph14 km/h	91%	36%	1
Mon 10a	Partly sunny	59°15° (likely 58°14° to 60°16°)	59°15°	0%	2 mph3 km/h from W, gusts 11 mph18 km/h	85%	50%	2
Mon 11a	Partly sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	5 mph8 km/h from NW, gusts 14 mph22 km/h	78%	64%	3
Mon 12p	Mostly sunny	66°19° (likely 64°18° to 67°19°)	66°19°	0%	5 mph8 km/h from NW, gusts 15 mph24 km/h	73%	50%	4
Mon 1p	Mostly sunny	67°19° (likely 65°18° to 68°20°)	67°19°	0%	5 mph8 km/h from NW, gusts 15 mph24 km/h	68%	51%	4

Days ahead

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

Today, Oct 24. Sunny. High 73°23°, low 50°10°. Typical 72°22° / 52°11°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
2. Evening
  6 PM–midnight
  Clear, 63°17°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Official NWS forecast
Today: Sunny, with a high near 73. North wind around 5 mph.
Tonight: Mostly clear. Low around 50, with temperatures rising to around 52 overnight. West southwest wind 0 to 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–73°23°
Low, likely
48°9°–53°12°
Typical high / low
72°22° / 52°11°
Wind
5 mph9 km/h, gusts 24 mph38 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 74°23°, low 50°10°. Typical 72°22° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 50°10°
  Dry
Official NWS forecast
Day: Partly sunny. High near 74, with temperatures falling to around 71 in the afternoon. North northwest wind 0 to 5 mph.
Night: Partly cloudy, with a low around 50. West southwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–74°23°
Low, likely
48°9°–51°11°
Typical high / low
72°22° / 51°11°
Wind
8 mph12 km/h, gusts 16 mph26 km/h
UV peak
4
Monday, Oct 26. Fog. High 69°21°, low 49°9°. Typical 72°22° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Official NWS forecast
Day: Patchy fog between 7am and 9am. Mostly sunny, with a high near 69. West northwest wind 2 to 10 mph.
Night: Mostly clear, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–69°21°
Low, likely
48°9°–53°12°
Typical high / low
72°22° / 51°11°
Wind
10 mph17 km/h, gusts 24 mph38 km/h
UV peak
5
Tuesday, Oct 27. Fog. High 68°20°, low 49°9°. Typical 72°22° / 51°11°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  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 68.
Night: Partly cloudy, with a low around 49.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–68°20°
Low, likely
48°9°–50°10°
Typical high / low
72°22° / 51°11°
Wind
9 mph14 km/h, gusts 26 mph42 km/h
UV peak
5
Wednesday, Oct 28. Mostly cloudy. High 66°19°, low 50°10°. Typical 72°22° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 66.
Night: Mostly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
46°8°–52°11°
Typical high / low
72°22° / 51°11°
Wind
9 mph14 km/h, gusts 22 mph35 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 65°18°, low 48°9°. Typical 71°22° / 50°10°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 65.
Night: A slight chance of rain after 5am. Partly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–68°20°
Low, likely
48°9°–54°12°
Typical high / low
71°22° / 50°10°
Wind
10 mph17 km/h, gusts 24 mph38 km/h
UV peak
4
Friday, Oct 30. Rain. High 64°18°, low 47°8°. Typical 71°22° / 50°10°. Rain 0.01 in0.3 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain. Mostly sunny, with a high near 64.
Night: A slight chance of rain. Partly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–64°18°
Low, likely
46°8°–51°11°
Typical high / low
71°22° / 50°10°
Wind
10 mph16 km/h, gusts 29 mph46 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 61°16°, low 46°8°. Typical 71°22° / 50°10°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  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, 47°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
57°14°–66°19°
Low, likely
44°7°–49°9°
Typical high / low
71°22° / 50°10°
Wind
8 mph14 km/h, gusts 22 mph35 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 64°18°, low 45°7°. Typical 70°21° / 50°10°. Rain 0.04 in1 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Rain, 50°10°
  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
60°16°–70°21°
Low, likely
41°5°–48°9°
Typical high / low
70°21° / 50°10°
Wind
9 mph14 km/h, gusts 22 mph35 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 60°16°, low 49°9°. Typical 70°21° / 49°9°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 60°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  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 agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–61°16°
Low, likely
47°8°–52°11°
Typical high / low
70°21° / 49°9°
Wind
6 mph10 km/h, gusts 18 mph29 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 50°.
Tomorrow
Dry, high 74°, low 50°.
Monday
Dry, high 69°, low 49°, cooling off.
Rest of week
Mostly dry, highs 60–68°.

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

San Francisquito Creek at Stanford University

1.1 mi

Below flood stage

Level: 0.3 ft
Flow: under 1 cfs

Forecast peak 0.2 ft Sat 3 PM

Reading from Sat 1:45 PM · NWS gauge page

Atherton Channel at Las Lomitas School

0.6 mi

Level: 0.1 ft

Reading from Sat 1 PM · NWS gauge page

Atherton Channel upstream of Caltrain

2.0 mi

Level: 0.1 ft

Reading from Sat 6:12 AM · NWS gauge page

San Francisquito Creek at Waverly (SFWS)

2.3 mi

Below flood stage

Level: 0.0 ft

Reading from Sat 1:05 PM · 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 14Typical 26

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 39°F).

Open the windows?

Today, 3:00 PM–8:00 PM

Good stretch to open the windows.

Is this typical?

MOFFETT FEDERAL AIRFIELD · official normals 1991–2020 · records 1945–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

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

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

Sun & moon

Sun

Daylight: 10 h 54 min; Losing 2 min 7 s a day; shortest Dec 21, 1 h 19 min less
Golden hour: 5:43–6:36 PM; Morning 7:09–8:01 AM
Blue hour: 6:36–6:46 PM; Morning 6:59–7:09 AM; first light 6:59 AM

Stars tonight? Fair

Mostly clear 6:46 PM–5 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:47 AM · rises 5:19 PM
Full moon: Oct 25
New moon: Nov 8

Looking southwest from West Menlo Park. The highest point on the skyline is about 2,500 ft, 8 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.

1 active weather alert

Coastal Flood Advisory