Coastal Flood Advisory
Ends in 4 days 19 h
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 6:15 PM PDT at KSTS

Calistoga, CA weather

Sunny and 66°19°, jacket by 9 PM.

Mostly agree

Now 66°19°

Sunny

Wind: 5 mph7 km/h; From the south. Light through 7 AM
Dew point: 34°1°; Dry · up to 43°6° by 8 PM (comfortable)
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 35Good; Main pollutant: Ozone
Pressure: 29.98 inHg1015 hPa; Rising slowly · +0.03 inHg+0.9 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° warmer than this time yesterday (67°19° then, 70°21° now)

Good hours for

Low 46°8° tomorrow at 6 AM
Above 60°16° tomorrow by 11 AM
High 71°22° tomorrow at 3 PM
Below 60°16° tomorrow night after 7 PM

TonightDown to 47°8° by 5 AM · Partly cloudy
Tomorrow morningUp to 61°16° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 71°22° by 3 PM · Cloudy
Tomorrow nightDown to 43°6° by 5 AM · Partly cloudy
Monday morningUp to 58°14° by 11 AM · Clear
Monday afternoonUp to 66°19° by 3 PM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 7p	Clear	63°17° (likely 59°15° to 64°18°)	63°17°	0%	0 mph0 km/h, gusts 8 mph13 km/h	54%	8%	0
Sat 8p	Clear	57°14° (likely 57°14° to 61°16°)	57°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	59%	34%	0
Sat 9p	Clear	55°13° (likely 55°13° to 59°15°)	55°13°	0%	0 mph0 km/h, gusts 3 mph5 km/h	62%	39%	0
Sat 10p	Clear	54°12° (likely 54°12° to 59°15°)	54°12°	0%	0 mph0 km/h, gusts 2 mph3 km/h	63%	40%	0
Sat 11p	Clear	52°11° (likely 52°11° to 57°14°)	52°11°	0%	0 mph0 km/h, gusts 1 mph2 km/h	68%	40%	0
Sun 12a	Mostly clear	50°10° (likely 50°10° to 55°13°)	50°10°	0%	0 mph0 km/h, gusts 2 mph3 km/h	70%	12%	0
Sun 1a	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 2 mph4 km/h	69%	4%	0
Sun 2a	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 2 mph3 km/h	68%	4%	0
Sun 3a	Clear	49°9° (likely 49°9° to 54°12°)	49°9°	0%	0 mph0 km/h, gusts 2 mph3 km/h	68%	14%	0
Sun 4a	Partly cloudy	48°9° (likely 48°9° to 54°12°)	48°9°	0%	1 mph2 km/h from E, gusts 2 mph3 km/h	69%	44%	0
Sun 5a	Partly cloudy	47°8° (likely 47°8° to 53°12°)	47°8°	0%	1 mph2 km/h from E, gusts 2 mph3 km/h	68%	62%	0
Sun 6a	Partly cloudy	46°8° (likely 46°8° to 53°12°)	46°8°	0%	2 mph3 km/h from E, gusts 3 mph5 km/h	71%	47%	0
Sun 7a	Partly sunny	46°8° (likely 45°7° to 52°11°)	46°8°	0%	2 mph3 km/h from E, gusts 3 mph5 km/h	74%	54%	0
Sun 8a	Cloudy	46°8° (likely 45°7° to 52°11°)	46°8°	0%	2 mph3 km/h from E, gusts 3 mph5 km/h	74%	81%	0
Sun 9a	Cloudy	50°10° (likely 50°10° to 55°13°)	50°10°	0%	2 mph3 km/h from ESE, gusts 4 mph6 km/h	68%	80%	1
Sun 10a	Cloudy	57°14° (likely 57°14° to 62°17°)	57°14°	0%	1 mph2 km/h from ESE, gusts 3 mph5 km/h	62%	77%	2
Sun 11a	Mostly cloudy	61°16° (likely 61°16° to 67°19°)	61°16°	0%	1 mph2 km/h from ESE, gusts 3 mph5 km/h	57%	56%	3
Sun 12p	Cloudy	66°19° (likely 66°19° to 70°21°)	66°19°	0%	0 mph0 km/h, gusts 5 mph8 km/h	49%	77%	4
Sun 1p	Cloudy	68°20° (likely 68°20° to 72°22°)	68°20°	0%	1 mph2 km/h from SSE, gusts 5 mph8 km/h	46%	81%	4
Sun 2p	Cloudy	69°21° (likely 69°21° to 73°23°)	69°21°	0%	2 mph3 km/h from SSW, gusts 8 mph13 km/h	44%	87%	4
Sun 3p	Cloudy	71°22° (likely 69°21° to 73°23°)	71°22°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	43%	90%	3
Sun 4p	Cloudy	69°21° (likely 67°19° to 72°22°)	69°21°	0%	3 mph5 km/h from SW, gusts 10 mph17 km/h	45%	94%	2
Sun 5p	Cloudy	69°21° (likely 65°18° to 69°21°)	69°21°	0%	3 mph5 km/h from WSW, gusts 11 mph18 km/h	47%	92%	1
Sun 6p	Cloudy	65°18° (likely 62°17° to 66°19°)	65°18°	0%	2 mph3 km/h from WSW, gusts 10 mph17 km/h	57%	97%	0
Sun 7p	Cloudy	59°15° (likely 58°14° to 63°17°)	59°15°	0%	0 mph0 km/h, gusts 8 mph13 km/h	64%	95%	0
Sun 8p	Cloudy	56°13° (likely 56°13° to 60°16°)	56°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	69%	93%	0
Sun 9p	Mostly cloudy	54°12° (likely 54°12° to 58°14°)	54°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	75%	27%	0
Sun 10p	Clear	52°11° (likely 52°11° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 4 mph7 km/h	78%	6%	0
Sun 11p	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 4 mph6 km/h	85%	0%	0
Mon 12a	Clear	48°9° (likely 48°9° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	90%	14%	0
Mon 1a	Clear	47°8° (likely 47°8° to 52°11°)	47°8°	0%	0 mph0 km/h, gusts 3 mph4 km/h	90%	16%	0
Mon 2a	Clear	46°8° (likely 46°8° to 51°11°)	46°8°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	92%	20%	0
Mon 3a	Clear	45°7° (likely 45°7° to 50°10°)	45°7°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	93%	19%	0
Mon 4a	Clear	44°7° (likely 44°7° to 50°10°)	44°7°	0%	1 mph2 km/h from W, gusts 4 mph7 km/h	99%	19%	0
Mon 5a	Clear	43°6° (likely 43°6° to 49°9°)	43°6°	0%	2 mph3 km/h from W, gusts 4 mph6 km/h	99%	19%	0
Mon 6a	Clear	43°6° (likely 43°6° to 48°9°)	43°6°	0%	2 mph3 km/h from W, gusts 4 mph7 km/h	100%	15%	0
Mon 7a	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	100%	17%	0
Mon 8a	Sunny	44°7° (likely 44°7° to 47°8°)	42°6°	0%	3 mph5 km/h from W, gusts 8 mph12 km/h	100%	20%	0
Mon 9a	Sunny	47°8° (likely 47°8° to 52°11°)	46°8°	0%	3 mph5 km/h from W, gusts 9 mph15 km/h	98%	13%	1
Mon 10a	Sunny	52°11° (likely 52°11° to 57°14°)	52°11°	0%	3 mph5 km/h from W, gusts 14 mph23 km/h	95%	2%	2
Mon 11a	Sunny	58°14° (likely 58°14° to 62°17°)	58°14°	0%	5 mph8 km/h from W, gusts 14 mph22 km/h	89%	10%	3
Mon 12p	Sunny	61°16° (likely 61°16° to 64°18°)	61°16°	0%	5 mph8 km/h from W, gusts 15 mph24 km/h	81%	8%	4
Mon 1p	Sunny	63°17° (likely 63°17° to 66°19°)	63°17°	0%	5 mph8 km/h from W, gusts 17 mph27 km/h	72%	8%	5
Mon 2p	Sunny	65°18° (likely 65°18° to 67°19°)	65°18°	0%	7 mph11 km/h from W, gusts 17 mph27 km/h	64%	10%	5
Mon 3p	Sunny	66°19° (likely 66°19° to 68°20°)	66°19°	0%	7 mph11 km/h from W, gusts 16 mph26 km/h	58%	11%	4
Mon 4p	Sunny	66°19° (likely 66°19° to 68°20°)	66°19°	0%	7 mph11 km/h from W, gusts 15 mph24 km/h	55%	15%	3
Mon 5p	Sunny	65°18° (likely 65°18° to 67°19°)	65°18°	0%	6 mph10 km/h from W, gusts 13 mph22 km/h	56%	11%	2
Mon 6p	Mostly clear	62°17° (likely 62°17° to 63°17°)	62°17°	0%	6 mph10 km/h from W, gusts 10 mph15 km/h	60%	10%	0

Days ahead

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

Today, Oct 24. Sunny. High 75°24°, low 45°7°. Typical 77°25° / 46°8°. Dry. Mostly agree. Best day outdoors this week.
1. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Official NWS forecast
Tonight: Mostly clear. Low around 45, with temperatures rising to around 47 overnight. East wind around 1 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
72°22°–76°24°
Low, likely
45°7°–54°12°
Typical high / low
77°25° / 46°8°
Wind
12 mph19 km/h, gusts 23 mph36 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 72°22°, low 43°6°. Typical 76°24° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Mostly cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  Dry
Official NWS forecast
Day: Partly sunny. High near 72, with temperatures falling to around 69 in the afternoon. South wind 0 to 3 mph.
Night: Patchy fog after 3am. Mostly cloudy, with a low around 43. West wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–73°23°
Low, likely
43°6°–52°11°
Typical high / low
76°24° / 46°8°
Wind
8 mph14 km/h, gusts 14 mph23 km/h
UV peak
4
Monday, Oct 26. Fog. High 66°19°, low 41°5°. Typical 76°24° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Official NWS forecast
Day: Patchy fog before 8am. Sunny, with a high near 66. West wind 2 to 7 mph.
Night: Patchy fog after 5am. Mostly clear, with a low around 41. Northwest wind 1 to 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–68°20°
Low, likely
41°5°–47°8°
Typical high / low
76°24° / 46°8°
Wind
11 mph18 km/h, gusts 24 mph39 km/h
UV peak
5
Tuesday, Oct 27. Fog. High 68°20°, low 42°6°. Typical 76°24° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Sunny, with a high near 68.
Night: Partly cloudy, with a low around 42.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
64°18°–69°21°
Low, likely
42°6°–47°8°
Typical high / low
76°24° / 46°8°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
5
Wednesday, Oct 28. Fog. High 65°18°, low 42°6°. Typical 75°24° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Partly sunny, with a high near 65.
Night: Patchy fog after 2am. Mostly cloudy, with a low around 42.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
64°18°–70°21°
Low, likely
42°6°–46°8°
Typical high / low
75°24° / 46°8°
Wind
6 mph9 km/h, gusts 16 mph26 km/h
UV peak
4
Thursday, Oct 29. Fog. High 63°17°, low 39°4°. Typical 75°24° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 10am. Mostly sunny, with a high near 63.
Night: Patchy fog after 2am. Partly cloudy, with a low around 39.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–70°21°
Low, likely
39°4°–48°9°
Typical high / low
75°24° / 46°8°
Wind
5 mph8 km/h, gusts 28 mph45 km/h
UV peak
4
Friday, Oct 30. Rain. High 61°16°, low 39°4°. Typical 74°23° / 45°7°. Rain, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  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: Patchy fog before 8am, then a slight chance of rain between 11am and 5pm. Mostly sunny, with a high near 61.
Night: A slight chance of rain between 11pm and midnight, then areas of fog and a slight chance of rain. Partly cloudy, with a low around 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–65°18°
Low, likely
39°4°–44°7°
Typical high / low
74°23° / 45°7°
Wind
11 mph18 km/h, gusts 24 mph39 km/h
UV peak
4
Saturday, Oct 31. Fog. High 61°16°, low 41°5°. Typical 74°23° / 45°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 8am. Mostly sunny, with a high near 61.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
57°14°–66°19°
Low, likely
39°4°–44°7°
Typical high / low
74°23° / 45°7°
Wind
9 mph14 km/h, gusts 25 mph41 km/h
UV peak
4
Sunday, Nov 1. Sunny. High 65°18°, low 41°5°. Typical 74°23° / 45°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 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
61°16°–70°21°
Low, likely
37°3°–43°6°
Typical high / low
74°23° / 45°7°
Wind
6 mph9 km/h, gusts 22 mph36 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 64°18°, low 43°6°. Typical 73°23° / 45°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 52°11°
  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°–69°21°
Low, likely
42°6°–44°7°
Typical high / low
73°23° / 45°7°
Wind
6 mph10 km/h, gusts 13 mph20 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 75°, low 45°.
Tomorrow
Dry, high 72°, low 43°, cooling off.
Monday
Dry, high 66°, low 41°, cooling off.
Rest of week
Mostly dry, highs 61–68°.

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

Napa River near St. Helena

8.4 mi

Below flood stage

Level: 0.5 ft

Forecast peak 1.1 ft Sat 7 PM

Reading from Sat 5:45 PM · NWS gauge page

Maacama Creek near Kellogg

11 mi

Below flood stage

Level: 3.6 ft
Flow: 1 cfs

Forecast peak 3.6 ft Sat 7 PM

Reading from Sat 5:30 PM · NWS gauge page

Santa Rosa Creek at Santa Rosa

13 mi

Below flood stage

Level: 23.4 ft
Flow: 1 cfs

Forecast peak 23.4 ft Sat 7 PM

Reading from Sat 5 PM · NWS gauge page

Russian River near Healdsburg

14 mi

Below flood stage

Level: 0.1 ft
Flow: 187 cfs

Forecast peak 0.1 ft Sat 7 PM

Reading from Sat 4:45 PM · NWS gauge page

For your home

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

Heating this week

About 30% less heating than a typical week.

This week 21Typical 30

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 13
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 34°F).

Open the windows?

Sun, 11:00 AM–6:00 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 2°1° colder than typical.

Last 7 days vs normal

On average 3°2° colder than normal (daily mean temperature).

−1°MonOct 19
−6°−4°TueOct 20
−3°−2°WedOct 21
±0°ThuOct 22
−6°−3°FriOct 23
—SatOct 24
—SunOct 25

Calistoga 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: 5:43–6:36 PM; Morning 7:12–8:05 AM
Blue hour: 6:36–6:46 PM; Morning 7:01–7:12 AM; first light 7:01 AM

Stars tonight? Fair

Mostly clear 12–4 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:50 AM · rises 5:19 PM
Full moon: Oct 25
New moon: Nov 8

Looking north from Calistoga. The highest point on the skyline is about 4,300 ft, 7 mi away.Skyline from USGS elevation data, heights drawn up to 2.5× taller. Sky, sun and moon as they are now.

1 active weather alert

Coastal Flood Advisory

Calistoga, 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

Maacama Creek near Kellogg

Santa Rosa Creek at Santa Rosa

Russian River near Healdsburg

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