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Shaded-relief atlas plate of Mamaroneck, New York: rivers, roads, the city limits and where the water drains.
NEW YORK · WESTCHESTER COUNTY

Mamaroneck

19,783 people, 30 ft above sea level in Westchester County.

30 ftElevation, city center
19,783People, 2024 estimate
3 sq miLand area
Sunny 70°
Sunny now Dew point 57° · NW 9 mph · high 69°
City of Mamaroneck River Interstate 2 miles
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The Mamaroneck 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 Mamaroneck

NWS forecast and National Blend of Models · updated 4:00 PM EDT
RIGHT NOW La Guardia Airport (KLGA) · 3:51 PM
Sunny
70° Sunny Feels like 70° · high of 69° near 4 PM
WindNW 9 mphno gusts
Humidity63%rising to 93% by morning
Pressure29.97 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 57° · Comfortableabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Friday30% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINSept. 271.24 in · 2 dry days
ALERTS & OUTLOOKS
No watches or warnings for Westchester County
NWS Upton and the Storm Prediction Center · checked 4:54 PM
SUN & MOON
↑ 6:49 AM6:41 PM ↓
11 h 51 m of daylight, 3 minutes less than yesterday
Waning gibbous, 89% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
25
GOODAir quality index · ozone
Tomorrow: 39, good. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
TUESDAY, SEPT. 29
WEDNESDAY, SEPT. 30
THURSDAY, OCT. 1
FRIDAY, OCT. 2
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
partly cloudy day
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
mostly sunny
partly cloudy day
partly cloudy day
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
partly cloudy night
mostly clear night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
TEMPERATURE °F
69°
59°
74°
65°
75°
69°
CHANCE OF RAIN
50%
WIND, MPH
3
3
5
3
3
3
0
5
8
9
8
8
7
7
8
10
10
10
12
10
10
9
9
13
HOW IT FEELS · DEW POINT
Sticky: dew points 57 to 65°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 72° / 60°
TUE Sept. 29 Partly cloudy Partly cloudy
69° 59°
0% rain — NNW 2 A
WED Sept. 30 Partly cloudy Partly cloudy
75° 65°
0% rain — SSW 4 A
THU Oct. 1 Partly cloudy Partly cloudy
77° 69°
0% rain — SW 9 B
FRI Oct. 2 Chance of showers Chance of showers
82° 63°
30% rain up to 0.1″ W 15 B
SAT Oct. 3 Partly cloudy; cooler Partly cloudy; cooler
71° 58°
20% rain — ENE 9 B
SUN Oct. 4 Chance of showers Chance of showers
67° 57°
40% rain up to 0.9″ E 9 B
MON Oct. 5 Mostly sunny Mostly sunny
67° 50°
10% rain — NW 17 C
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 Mamaroneck about 5,000 feet above the ground was over the North Atlantic three days ago, and over Ontario a day ago, about 1,370 miles back along its path. Near the ground the air came from the North Atlantic; at 10,000 feet, from the western Atlantic. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

MILE7
ON THE NETWORK

Around Mamaroneck on the Forecast Network

Neighboring plates

Hempstead NY · 22 MI 22 miles south New York NY · 22 MI 22 miles southwest Brookhaven NY · 40 MI 40 miles east Philadelphia PA · 98 MI 98 miles southwest Providence RI · 134 MI 134 miles northeast Worcester MA · 135 MI 135 miles northeast
FORECASTCITY
Atlas plate of Mamaroneck, New York. Explore the plate
NEW YORK · WESTCHESTER

Mamaroneck

19,783 people, 30 ft above sea level in Westchester County.

30 ftElevation
19,783People
3 sq miLand
Sunny 70°
SunnyDew point 57°
1

Today in Mamaroneck

NEXT 15 HOURS
Now partly cloudy day 69° 0%
7p partly cloudy night 68° 1%
10p partly cloudy night 65° 0%
1a partly cloudy night 63° 0%
4a partly cloudy night 61° 0%
7a partly cloudy day 59° 0%
Rain
NEXT RAINFriday · 30%
→
Tue0%
Partly cloudy Partly cloudy
59
69
A
Wed0%
Partly cloudy Partly cloudy
65
75
A
Thu0%
Partly cloudy Partly cloudy
69
77
B
Fri30%
Chance of showers Chance of showers
63
82
B
Sat20%
Partly cloudy; cooler Partly cloudy; cooler
58
71
B
Sun40%
Chance of showers Chance of showers
57
67
B
Mon10%
Mostly sunny Mostly sunny
50
67
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
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