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 10:00 PM PDT at KHWD

Newark, CA weather

Clear and 57°14°.

Forecasts agree

Now 57°14°

Clear

Wind: 8 mph13 km/h; From the southeast. Up to 8 mph13 km/h through 10 AM
Dew point: 52°11°; Comfortable · down to 43°6° by 5 AM
UV tomorrow: 5Moderate; Moderate 11 AM–5 PM · peak 5
Air quality: 29Good; Main pollutant: Ozone
Pressure: 30.04 inHg1017 hPa; Rising slowly · +0.02 inHg+0.7 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (61°16° then, 59°15° now)

Good hours for

Low 48°9° tonight at 5 AM
Above 60°16° tomorrow by 11 AM
High 69°21° tomorrow at 3 PM
Below 60°16° tomorrow night after 9 PM

TonightDown to 48°9° by 5 AM · Clear
Tomorrow morningUp to 61°16° by 11 AM · Clear
Tomorrow afternoonUp to 69°21° by 3 PM · Clear
Tomorrow nightDown to 50°10° by 5 AM · Clear
Sunday morningUp to 64°18° by 11 AM · Partly cloudy
Sunday afternoonUp to 71°22° by 3 PM · Mostly cloudy
Sunday nightDown to 58°14° 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	56°13° (likely 52°11° to 57°14°)	56°13°	0%	3 mph5 km/h from NW, gusts 7 mph11 km/h	86%	0%	0
Fri 11p	Clear	55°13° (likely 50°10° to 56°13°)	55°13°	0%	2 mph3 km/h from WNW, gusts 7 mph11 km/h	86%	0%	0
Sat 12a	Clear	54°12° (likely 49°9° to 55°13°)	54°12°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	83%	1%	0
Sat 1a	Clear	54°12° (likely 48°9° to 54°12°)	54°12°	0%	2 mph3 km/h from ENE, gusts 5 mph8 km/h	81%	3%	0
Sat 2a	Clear	52°11° (likely 47°8° to 54°12°)	52°11°	0%	2 mph3 km/h from ESE, gusts 5 mph7 km/h	81%	6%	0
Sat 3a	Clear	50°10° (likely 46°8° to 53°12°)	50°10°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	83%	40%	0
Sat 4a	Clear	49°9° (likely 46°8° to 53°12°)	49°9°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	82%	40%	0
Sat 5a	Clear	48°9° (likely 45°7° to 52°11°)	48°9°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	82%	21%	0
Sat 6a	Clear	48°9° (likely 44°7° to 52°11°)	48°9°	0%	2 mph3 km/h from E, gusts 5 mph7 km/h	78%	1%	0
Sat 7a	Sunny	48°9° (likely 44°7° to 52°11°)	48°9°	0%	2 mph3 km/h from ENE, gusts 4 mph7 km/h	78%	1%	0
Sat 8a	Sunny	48°9° (likely 45°7° to 52°11°)	47°8°	0%	3 mph5 km/h from NE, gusts 3 mph5 km/h	76%	7%	0
Sat 9a	Sunny	54°12° (likely 50°10° to 56°13°)	54°12°	0%	3 mph5 km/h from NE, gusts 3 mph5 km/h	73%	7%	1
Sat 10a	Sunny	58°14° (likely 56°13° to 59°15°)	58°14°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	66%	2%	2
Sat 11a	Sunny	61°16° (likely 61°16° to 64°18°)	61°16°	0%	2 mph3 km/h from N, gusts 5 mph9 km/h	60%	2%	3
Sat 12p	Sunny	65°18° (likely 65°18° to 66°19°)	65°18°	0%	2 mph3 km/h from NW, gusts 9 mph15 km/h	55%	2%	4
Sat 1p	Sunny	66°19° (likely 66°19° to 69°21°)	67°19°	0%	3 mph5 km/h from W, gusts 10 mph16 km/h	52%	1%	5
Sat 2p	Sunny	68°20° (likely 68°20° to 71°22°)	68°20°	0%	3 mph5 km/h from WNW, gusts 9 mph14 km/h	52%	0%	5
Sat 3p	Sunny	69°21° (likely 68°20° to 72°22°)	69°21°	0%	5 mph8 km/h from WNW, gusts 8 mph13 km/h	51%	0%	4
Sat 4p	Sunny	69°21° (likely 68°20° to 72°22°)	69°21°	0%	5 mph8 km/h from WNW, gusts 7 mph12 km/h	50%	0%	3
Sat 5p	Sunny	68°20° (likely 67°19° to 71°22°)	68°20°	0%	5 mph8 km/h from NW, gusts 8 mph13 km/h	55%	0%	2
Sat 6p	Clear	66°19° (likely 64°18° to 68°20°)	66°19°	0%	3 mph5 km/h from NW, gusts 12 mph19 km/h	61%	2%	1
Sat 7p	Clear	61°16° (likely 59°15° to 64°18°)	61°16°	0%	0 mph0 km/h, gusts 11 mph17 km/h	68%	39%	0
Sat 8p	Clear	60°16° (likely 56°13° to 61°16°)	60°16°	0%	0 mph0 km/h, gusts 9 mph15 km/h	72%	8%	0
Sat 9p	Clear	58°14° (likely 54°12° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	74%	4%	0
Sat 10p	Clear	57°14° (likely 52°11° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	76%	8%	0
Sat 11p	Clear	56°13° (likely 50°10° to 57°14°)	56°13°	0%	2 mph3 km/h from SE, gusts 3 mph6 km/h	78%	2%	0
Sun 12a	Clear	55°13° (likely 49°9° to 56°13°)	55°13°	0%	2 mph3 km/h from SE, gusts 4 mph6 km/h	76%	1%	0
Sun 1a	Clear	54°12° (likely 48°9° to 56°13°)	54°12°	0%	2 mph3 km/h from SE, gusts 3 mph6 km/h	74%	1%	0
Sun 2a	Clear	52°11° (likely 48°9° to 55°13°)	53°12°	0%	2 mph3 km/h from ESE, gusts 3 mph5 km/h	75%	0%	0
Sun 3a	Clear	52°11° (likely 47°8° to 54°12°)	52°11°	0%	2 mph3 km/h from ESE, gusts 3 mph6 km/h	80%	3%	0
Sun 4a	Clear	51°11° (likely 46°8° to 54°12°)	51°11°	0%	2 mph3 km/h from ESE, gusts 3 mph5 km/h	79%	10%	0
Sun 5a	Mostly clear	50°10° (likely 46°8° to 53°12°)	50°10°	0%	1 mph2 km/h from E, gusts 3 mph5 km/h	80%	55%	0
Sun 6a	Mostly clear	50°10° (likely 45°7° to 53°12°)	50°10°	0%	1 mph2 km/h from E, gusts 3 mph5 km/h	77%	49%	0
Sun 7a	Mostly sunny	50°10° (likely 44°7° to 52°11°)	50°10°	0%	1 mph2 km/h from E, gusts 5 mph7 km/h	78%	50%	0
Sun 8a	Mostly sunny	50°10° (likely 45°7° to 53°12°)	50°10°	0%	1 mph2 km/h from E, gusts 5 mph9 km/h	82%	53%	0
Sun 9a	Mostly sunny	54°12° (likely 50°10° to 55°13°)	54°12°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	80%	54%	1
Sun 10a	Mostly sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	75%	52%	2
Sun 11a	Partly sunny	64°18° (likely 59°15° to 64°18°)	64°18°	0%	1 mph2 km/h from N, gusts 3 mph6 km/h	70%	64%	3
Sun 12p	Partly sunny	67°19° (likely 61°16° to 67°19°)	67°19°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	64%	74%	4
Sun 1p	Partly sunny	69°21° (likely 63°17° to 69°21°)	69°21°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	60%	75%	4
Sun 2p	Cloudy	70°21° (likely 65°18° to 70°21°)	71°22°	0%	3 mph5 km/h from WNW, gusts 7 mph12 km/h	57%	79%	4
Sun 3p	Cloudy	71°22° (likely 67°19° to 71°22°)	71°22°	0%	3 mph5 km/h from WNW, gusts 10 mph16 km/h	56%	77%	3
Sun 4p	Cloudy	71°22° (likely 66°19° to 71°22°)	71°22°	0%	3 mph5 km/h from WNW, gusts 12 mph20 km/h	57%	81%	3
Sun 5p	Cloudy	69°21° (likely 64°18° to 70°21°)	69°21°	0%	7 mph11 km/h from WNW, gusts 13 mph20 km/h	60%	85%	1
Sun 6p	Cloudy	66°19° (likely 65°18° to 68°20°)	66°19°	0%	7 mph11 km/h from WNW, gusts 10 mph17 km/h	66%	83%	0
Sun 7p	Partly cloudy	63°17° (likely 60°16° to 66°19°)	63°17°	0%	7 mph11 km/h from WNW, gusts 8 mph12 km/h	73%	89%	0
Sun 8p	Mostly clear	60°16° (likely 56°13° to 64°18°)	60°16°	0%	1 mph2 km/h from WNW, gusts 6 mph10 km/h	80%	78%	0
Sun 9p	Mostly clear	58°14° (likely 53°12° to 63°17°)	59°15°	0%	1 mph2 km/h from WNW, gusts 5 mph8 km/h	83%	46%	0

Days ahead

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

Today, Oct 23. Cloudy. High 68°20°, low 48°9°. Typical 74°23° / 51°11°. Rain 0.02 in0.5 mm, 30% chance. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Tonight: Mostly clear, with a low around 48. Northeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–69°21°
Low, likely
48°9°–55°13°
Typical high / low
74°23° / 51°11°
Wind
12 mph20 km/h, gusts 20 mph32 km/h
UV peak
5
Tomorrow, Oct 24. Mostly sunny. High 70°21°, low 49°9°. Typical 74°23° / 51°11°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Official NWS forecast
Day: Sunny. High near 70, with temperatures falling to around 68 in the afternoon. North northwest wind around 5 mph.
Night: Mostly clear, with a low around 49. East northeast wind 0 to 3 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 70°21°).
High, likely
68°20°–72°22°
Low, likely
44°7°–52°11°
Typical high / low
74°23° / 51°11°
Wind
7 mph12 km/h, gusts 15 mph24 km/h
UV peak
5
Sunday, Oct 25. Cloudy. High 71°22°, low 50°10°. Typical 74°23° / 51°11°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Official NWS forecast
Day: Sunny, with a high near 71. North wind 1 to 7 mph.
Night: Partly cloudy, with a low around 50. Southwest wind 1 to 7 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–71°22°
Low, likely
44°7°–52°11°
Typical high / low
74°23° / 51°11°
Wind
10 mph15 km/h
UV peak
4
Monday, Oct 26. Fog. High 68°20°, low 48°9°. Typical 73°23° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Mostly sunny, with a high near 68.
Night: Patchy fog after 5am. Partly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–68°20°
Low, likely
46°8°–56°13°
Typical high / low
73°23° / 50°10°
Wind
10 mph17 km/h, gusts 18 mph29 km/h
UV peak
5
Tuesday, Oct 27. Fog. High 66°19°, low 48°9°. Typical 73°23° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 51°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 8am. Mostly sunny, with a high near 66.
Night: Patchy fog after 4am. Partly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–68°20°
Low, likely
46°8°–54°12°
Typical high / low
73°23° / 50°10°
Wind
10 mph17 km/h
UV peak
5
Wednesday, Oct 28. Fog. High 67°19°, low 50°10°. Typical 73°23° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Partly sunny, with a high near 67.
Night: Mostly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–68°20°
Low, likely
47°8°–54°12°
Typical high / low
73°23° / 50°10°
Wind
9 mph15 km/h, gusts 16 mph26 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 66°19°, low 50°10°. Typical 72°22° / 50°10°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°11°
  20% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 10am. Partly sunny, with a high near 66.
Night: A slight chance of rain showers after 5am. Partly cloudy, with a low around 50.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–67°19°
Low, likely
50°10°–53°12°
Typical high / low
72°22° / 50°10°
Wind
8 mph13 km/h, gusts 14 mph22 km/h
UV peak
4
Friday, Oct 30. Showers. High 65°18°, low 50°10°. Typical 72°22° / 50°10°. Rain 0.07 in1.8 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  30% chance · 0.02 in0.5 mm
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  30% chance · 0.04 in0.9 mm
3. Evening
  6 PM–midnight
  Clear, 55°13°
  30% chance · 0.02 in0.5 mm
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers before 8am, then patchy fog and a slight chance of rain showers. Mostly sunny, with a high near 65.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–67°19°
Low, likely
46°8°–53°12°
Typical high / low
72°22° / 50°10°
Wind
8 mph13 km/h, gusts 16 mph26 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 64°18°, low 48°9°. Typical 72°22° / 49°9°. Rain 0.03 in0.8 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 49°9°
  20% chance
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  30% chance
3. Evening
  6 PM–midnight
  Clear, 57°14°
  30% chance
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  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
60°16°–72°22°
Low, likely
40°4°–53°12°
Typical high / low
72°22° / 49°9°
Wind
7 mph10 km/h, gusts 16 mph26 km/h
UV peak
4
Sunday, Nov 1. Sunny. High 68°20°, low 47°8°. Typical 72°22° / 49°9°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 49°10°
  20% chance
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  20% chance
3. Evening
  6 PM–midnight
  Clear, 61°16°
  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
65°18°–76°24°
Low, likely
38°3°–56°13°
Typical high / low
72°22° / 49°9°
Wind
7 mph11 km/h, gusts 14 mph23 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 68°, low 48°.
Tomorrow
Dry, high 70°, low 49°.
Sunday
Dry, high 71°, low 50°.
Rest of week
Mostly dry, highs 64–68°.

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

Alameda Creek near Niles

6.9 mi

Below flood stage

Level: 3.0 ft
Flow: 31 cfs

Forecast peak 2.8 ft Fri 10 PM

Reading from Fri 8 PM · NWS gauge page

San Francisco Bay Coyote Creek

2.8 mi

Level: 3.0 ft

Reading from Fri 8:15 PM · NWS gauge page

Alameda Creek near Fremont

4.6 mi

Level: 6.0 ft
Flow: 41 cfs

Reading from Fri 8:15 PM · NWS gauge page

Artesian Slough

4.8 mi

Level: 3.2 ft

Reading from Fri 8:30 PM · NWS gauge page

For your home

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

Heating this week

About 33% less heating than a typical week.

This week 15Typical 22

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 52°F).

Open the windows?

Sat, 11:00 AM–8:00 PM

Good stretch to open the windows.

Is this typical?

San Jose · official normals 1991–2020 · records 1893–2026

Oct 23, today vs a typical year

Today’s expected high is 6°3° colder than typical.

Last 7 days vs normal

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

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

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

Sun & moon

Sun

Daylight: 10 h 56 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 22 min less
Golden hour: 5:44–6:36 PM; Morning 7:07–8:00 AM
Blue hour: 6:36–6:46 PM; Morning 6:57–7:07 AM; first light 6:57 AM

Stars tonight? Fair

Mostly clear 10:20 PM–3 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

95% lit · growing

Today: sets 4:40 AM · rises 4:52 PM
Full moon: Oct 25
New moon: Nov 8

Looking southeast from Newark. The highest point on the skyline is about 4,300 ft, 25 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