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Shaded-relief atlas plate of Greenwich, Connecticut: rivers, roads, the city limits and where the water drains.
CONNECTICUT · WESTERN CONNECTICUT PLANNING REGION

Greenwich

13,836 people, 110 ft above sea level in Western Connecticut Planning Region.

110 ftElevation, city center
13,836People, 2024 estimate
5 sq miLand area
Mostly cloudy 69°
Mostly cloudy now Dew point 58° · W 8 mph · high 68°
City of Greenwich River Interstate 2 miles
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The Greenwich 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 Greenwich

NWS forecast and National Blend of Models · updated 2:00 PM EDT
RIGHT NOW Long Island Mac Arthur Airport (KISP) · 2:56 PM
Mostly cloudy
69° Mostly cloudy Feels like 69° · high of 68° near 3 PM
WindW 8 mphno gusts
Humidity68%rising to 96% by morning
Pressure29.97 in →steady
Visibility10 mihaze-free
CloudsBrokenbases near 4,200 ft
UV index—no forecast
Dew point 58° · Comfortableabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Showers
Friday40% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINSept. 271.92 in · 2 dry days
ALERTS & OUTLOOKS
! Coastal Flood StatementCoastal Flood Statement issued September 29 at 12:47PM EDT until September 29 at 4:00PM EDT by NWS Upton NY
NWS Upton and the Storm Prediction Center · checked 3:46 PM
SUN & MOON
↑ 6:48 AM6:40 PM ↓
11 h 51 m of daylight, 3 minutes less than yesterday
Waning gibbous, 89% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
20
GOODAir quality index · ozone
Tomorrow: 50, 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
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
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
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
TEMPERATURE °F
68°
57°
71°
63°
72°
65°
CHANCE OF RAIN
50%
WIND, MPH
7
5
0
0
2
3
3
5
7
7
6
6
6
7
9
11
12
10
9
9
9
9
10
12
HOW IT FEELS · DEW POINT
Sticky: dew points 56 to 65°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 70° / 54°
TUE Sept. 29 Partly cloudy Partly cloudy
68° 57°
0% rain — NW 6 A
WED Sept. 30 Partly cloudy Partly cloudy
73° 61°
0% rain — WSW 5 A
THU Oct. 1 Partly cloudy Partly cloudy
74° 64°
0% rain — SSW 10 A
FRI Oct. 2 Chance of showers Chance of showers
77° 61°
40% rain up to 0.1″ WSW 12 A
SAT Oct. 3 Partly cloudy; cooler Partly cloudy; cooler
69° 55°
20% rain — E 8 B
SUN Oct. 4 Chance of showers Chance of showers
66° 54°
50% rain up to 1.3″ E 8 B
MON Oct. 5 Mostly sunny Mostly sunny
65° 48°
10% rain — NW 12 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 Greenwich about 5,000 feet above the ground was over the North Atlantic three days ago, and over Ontario a day ago, about 1,430 miles back along its path. It rose from near the ground on the way. Near the ground the air came from a point about 760 miles to the northeast; at 10,000 feet, from the Atlantic off the Carolinas. 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 Greenwich on the Forecast Network

Neighboring plates

Hempstead NY · 27 MI 27 miles south New York NY · 30 MI 30 miles southwest Springfield MA · 94 MI 94 miles northeast Philadelphia PA · 106 MI 106 miles southwest Providence RI · 127 MI 127 miles northeast Worcester MA · 127 MI 127 miles northeast
FORECASTCITY
Atlas plate of Greenwich, Connecticut. Explore the plate
CONNECTICUT · WESTERN CONNECTICUT

Greenwich

13,836 people, 110 ft above sea level in Western Connecticut Planning Region.

110 ftElevation
13,836People
5 sq miLand
Mostly cloudy 69°
Mostly cloudyDew point 58°
1

Today in Greenwich

NEXT 15 HOURS
Now partly cloudy day 68° 1%
6p mostly sunny 67° 1%
9p partly cloudy night 62° 1%
12a partly cloudy night 61° 0%
3a partly cloudy night 59° 0%
6a partly cloudy night 57° 0%
Showers
NEXT RAINFriday · 40%
→
Tue0%
Partly cloudy Partly cloudy
57
68
A
Wed0%
Partly cloudy Partly cloudy
61
73
A
Thu0%
Partly cloudy Partly cloudy
64
74
A
Fri40%
Chance of showers Chance of showers
61
77
A
Sat20%
Partly cloudy; cooler Partly cloudy; cooler
55
69
B
Sun50%
Chance of showers Chance of showers
54
66
B
Mon10%
Mostly sunny Mostly sunny
48
65
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
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