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Shaded-relief map of San Castle, Florida: rivers, roads, the city limits and where the water drains.
FLORIDA · PALM BEACH COUNTY

San Castle

3,755 people, 20 ft above sea level in Palm Beach County.

20 ftElevation, city center
3,755People, 2024 estimate
0 sq miLand area
Sunny 72°
Sunny now Dew point 45° · N 8 mph · high 69°
City of San Castle River Interstate 2 miles
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The San Castle plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in San Castle

NWS forecast and National Blend of Models · updated 1:00 PM EST
RIGHT NOW Palm Beach County Park Airport (KLNA) · 2:55 PM
Sunny
72° Sunny Feels like 72° · high of 69° near 3 PM
WindN 8 mphno gusts
Humidity38%rising to 87% by morning
Pressure30.00 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 45° · Dry69° by Tuesday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Tuesday40% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 120.24 in · 2 dry days
ALERTS & OUTLOOKS
No watches or warnings for Palm Beach County
NWS Miami and the Storm Prediction Center · checked 3:15 PM
SUN & MOON
↑ 6:38 AM5:30 PM ↓
10 h 52 m of daylight, 1 minute less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
42
GOODAir quality index · ozone
Tomorrow: None, good. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
mostly sunny
mostly clear night
partly cloudy night
partly cloudy night
mostly clear night
clear day
clear day
mostly sunny
clear day
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly sunny
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
TEMPERATURE °F
69°
59°
77°
69°
77°
71°
CHANCE OF RAIN
50%
WIND, MPH
9
6
6
6
6
6
7
9
9
7
7
7
8
8
13
14
14
13
13
12
13
14
15
15
HOW IT FEELS · DEW POINT
Dry: dew points 52 to 54° ↑ Humid air returns More humid: 69° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 80° / 62°
SAT Nov. 14 Mostly sunny Mostly sunny
69° 59°
0% rain — NNW 9 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
78° 67°
0% rain — NE 8 B
MON Nov. 16 Partly cloudy Partly cloudy
79° 69°
20% rain — ENE 12, gusts 28 A
TUE Nov. 17 Chance of showers Chance of showers
79° 70°
40% rain up to 0.2″ ENE 13, gusts 26 A
WED Nov. 18 Storms likely Storms likely
79° 70°
80% rain 0.3–1.5″ ENE 15, gusts 30 B
THU Nov. 19 Showers likely Showers likely
80° 72°
70% rain up to 0.8″ NE 14, gusts 29 A
FRI Nov. 20 Chance of showers Chance of showers
81° 72°
60% rain 0.01–0.7″ NE 12, gusts 26 A
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over San Castle about 5,000 feet above the ground was over the Caribbean three days ago, and over the Atlantic off Florida a day ago, about 490 miles back along its path. Near the ground the air came from the Caribbean; at 10,000 feet, from a point about 290 miles to the south. Air off the water carries moisture, which is why it feels humid. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

THIS WEEK IN 1994 Nov. 15–16, 1994

The wettest two days this week has seen

6.93 inches of rain fell in two days, the most for this week of the year since records began in 1888. The next wettest, 4.88 inches, fell in 1992.

4.88″
6.93″
19921994
Source: NOAA RCC-ACIS, the West Palm Beach Area threaded record since 1888.
MILE2
THE GROUND

What San Castle stands on

San Castle’s center stands about 20 ft above sea level. Within three miles the land runs from 0 ft to 30 ft, a difference of 30 ft: nearly flat ground. Open water lies within three miles.

Under the town center the state geologic map shows Anastasia Formation (sand, limestone), from the Pleistocene, less than 2.6 million years old.

The section below crosses 2 rock units mapped at the surface.

San Castle, cut in half from west to east

A section west to east, 24 miles through the town center
0 ft SAN CASTLE20 ftHigh point of the line60 ftManalapan10 ft ← WE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.

Rock at the surface along the line

Anastasia Formation

Sand, limestone. Age: Pleistocene, less than 2.6 million years old. About 7 mi of the line.

Shelly sediments of Plio-Pleistocene age

Sand, limestone. Age: Late Pliocene to Pleistocene, less than 3.6 million years old. About 6 mi of the line.

From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.

MILE5
THE ALMANAC

San Castle’s year

1991–2020 normals · records since 1888 · Donald J. Trump International Airport, 9 mi north-northwest

San Castle has a tropical rainforest climate. Summer afternoons average 90° in July; winter nights fall to about 58° in January. About 62 inches of rain fall in a normal year.

75°58°77°60°79°63°82°68°86°72°88°75°90°76°90°76°88°76°85°73°80°66°77°61° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 TODAY SAN CASTLE 61.7 in rain a year
Normal high to low, by month Record high to low, by day Rain by month
July, average90° / 76°high / low, the warmest month
January, average75° / 58°high / low, the coldest month
Rain a year61.7 inwettest months: August and June
Hottest on record101°FJuly 21, 1942
Coldest on record24°FDecember 29, 1894
Wettest day on record15.2 inApril 17, 1942
90° days a year74none reach 100°
Climate typeTropical rainforestKöppen Af

AROUND THE RING

1Highs of 90° and upJuly 4 to Aug. 24; normal highs reach 90°
2Wettest stretchJune through August: 22.8 of the year’s 61.7 inches
NOVEMBER 14 IN THE RECORD

On November 14 San Castle normally reaches 80° and falls to 66°. The record high is 87°, in 1948; the record low 37°, in 1906. The most rain on this date, 3.07 in, fell in 1926.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high75°77°79°82°86°88°90°90°88°85°80°77°
Normal low58°60°63°68°72°75°76°76°76°73°66°61°
Rain, inches3.472.633.313.684.918.485.638.687.965.903.623.48
Record high90° (2026)90° (2026)95° (2011)99° (1971)99° (2024)100° (1921)101° (1942)99° (2006)97° (1911)95° (1989)92° (1919)90° (2009)
Record low26° (1905)27° (1895)26° (1920)38° (1920)45° (1921)60° (1920)64° (1940)65° (1957)61° (1897)46° (1968)36° (1950)24° (1894)

Normals 1991–2020 and records since 1888 from the West Palm Beach Area threaded record (Donald J. Trump International Airport, 9 miles north-northwest). NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around San Castle on the Forecast Network

Neighboring plates

Fort Lauderdale FL · 30 MI 30 miles south Hollywood FL · 37 MI 37 miles south Miami FL · 55 MI 55 miles south Orlando FL · 147 MI 147 miles northwest Tampa FL · 178 MI 178 miles northwest St. Petersburg FL · 179 MI 179 miles northwest
FORECASTCITY
Map of San Castle, Florida. Explore the plate
FLORIDA · PALM BEACH

San Castle

3,755 people, 20 ft above sea level in Palm Beach County.

20 ftElevation
3,755People
0 sq miLand
Sunny 72°
SunnyDew point 45°
1

Today in San Castle

NEXT 15 HOURS
Now mostly sunny 69° 0%
6p partly cloudy night 65° 0%
9p partly cloudy night 62° 0%
12a partly cloudy night 60° 0%
3a mostly clear night 59° 0%
6a mostly clear night 59° 0%
Rain
NEXT RAINTuesday · 40%
→
Sat0%
Mostly sunny Mostly sunny
59
69
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
67
78
B
Mon20%
Partly cloudy Partly cloudy
69
79
A
Tue40%
Chance of showers Chance of showers
70
79
A
Wed80%
Storms likely Storms likely
70
79
B
Thu70%
Showers likely Showers likely
72
80
A
Fri60%
Chance of showers Chance of showers
72
81
A
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1994 · NOV. 15–16, 1994

6.93 inches in two days, the most for this week since 1888.

2

What San Castle stands on

San Castle’s center stands about 20 ft above sea level. Within three miles the land runs from 0 ft to 30 ft, a difference of 30 ft: nearly flat ground. Open water lies within three miles.

San Castle, west to east San Castle20 ftHigh point60 ft ← WE → 24 miles through the town center; vertical exaggeration about 122×. Colors: rock at the surface.
Elevation, center20 ft
Within 3 miles0 to 30 ft
Lie of the landNearly flat (30 ft of relief)
Rock at the surfaceAnastasia Formation
Its agePleistocene, less than 2.6 million years old
5

San Castle’s year

San Castle has a tropical rainforest climate. Summer afternoons average 90° in July; winter nights fall to about 58° in January. About 62 inches of rain fall in a normal year.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 12 61.7 in
July, average90° / 76° · high / low, the warmest month
January, average75° / 58° · high / low, the coldest month
Rain a year61.7 in · wettest months: August and June
Hottest on record101°F · July 21, 1942
Coldest on record24°F · December 29, 1894
Wettest day on record15.2 in · April 17, 1942
90° days a year74 · none reach 100°
Climate typeTropical rainforest · Köppen Af
1Highs of 90° and up · July 4 to Aug. 24; normal highs reach 90°
2Wettest stretch · June through August: 22.8 of the year’s 61.7 inches
NOVEMBER 14 IN THE RECORD

On November 14 San Castle normally reaches 80° and falls to 66°. The record high is 87°, in 1948; the record low 37°, in 1906. The most rain on this date, 3.07 in, fell in 1926.

Normals 1991–2020 and records since 1888 from the West Palm Beach Area threaded record (Donald J. Trump International Airport, 9 miles north-northwest). NOAA, through RCC-ACIS.