FORECAST CITY
Sign in
Shaded-relief atlas plate of Portland, New York: rivers, roads, the city limits and where the water drains.
NEW YORK · CHAUTAUQUA COUNTY

Portland

3,863 people, 860 ft above sea level in Chautauqua County.

860 ftElevation, city center
3,863People, 2024 estimate
34 sq miLand area
Sunny 67°
Sunny now Dew point 56° · WNW 3 mph · high 68°
City of Portland River Interstate 2 miles
Explore the plate Order a print

The Portland 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 Portland

NWS forecast and National Blend of Models · updated 4:00 PM EDT
RIGHT NOW Chautauqua County/Jamestown Airport (KJHW) · 3:56 PM
Sunny
67° Sunny Feels like 67° · high of 68° near 4 PM
WindWNW 3 mphno gusts
Humidity68%rising to 100% by morning
Pressure30.08 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 56° · Comfortableabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Mostly cloudy
Tomorrow, about 9 PMin about 28 hours · 31% chance · rain
LIKELY AMOUNT0–0.04 inmost likely 0; 1 in 10 over 0.2
LAST RAINSept. 200.09 in · 9 dry days
ALERTS & OUTLOOKS
No watches or warnings for Chautauqua County
NWS Buffalo and the Storm Prediction Center · checked 4:54 PM
SUN & MOON
↑ 7:12 AM7:03 PM ↓
11 h 51 m of daylight, 3 minutes less than yesterday
Waning gibbous, 89% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
57
MODERATEAir quality index · fine particles
Tomorrow: 48, 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
mostly cloudy night
mostly cloudy day
partly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
rain
rain
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
partly cloudy day
mostly cloudy night
mostly cloudy night
mostly cloudy night
rain
rain
rain
rain
TEMPERATURE °F
68°
52°
71°
60°
72°
61°
CHANCE OF RAIN
91% · 0.45 in Friday afternoon 50%
WIND, MPH
6
0
3
5
6
7
8
9
7
7
8
8
9
10
12
13
12
9
9
8
9
9
10
12
HOW IT FEELS · DEW POINT
Comfortable: dew points 52 to 61°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 80° / 62°
TUE Sept. 29 Partly cloudy Partly cloudy
68° 52°
0% rain — NW 6 A
WED Sept. 30 Chance of showers Chance of showers
71° 59°
30% rain — SSW 8 A
THU Oct. 1 Chance of showers Chance of showers
73° 60°
30% rain up to 0.4″ SW 12 C
FRI Oct. 2 Showers likely Showers likely
67° 45°
90% rain 0.2–0.8″ NW 8 C
SAT Oct. 3 Mostly sunny Mostly sunny
63° 43°
10% rain — NE 6 B
SUN Oct. 4 Partly cloudy Partly cloudy
64° 44°
20% rain — W 8 B
MON Oct. 5 Mostly sunny Mostly sunny
57° 37°
10% rain — NW 10 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

MILE7
ON THE NETWORK

Around Portland on the Forecast Network

Neighboring plates

Erie PA · 36 MI 36 miles southwest Hamburg NY · 40 MI 40 miles northeast Buffalo NY · 47 MI 47 miles northeast Cleveland OH · 130 MI 130 miles southwest Pittsburgh PA · 136 MI 136 miles south Detroit MI · 186 MI 186 miles west
FORECASTCITY
Atlas plate of Portland, New York. Explore the plate
NEW YORK · CHAUTAUQUA

Portland

3,863 people, 860 ft above sea level in Chautauqua County.

860 ftElevation
3,863People
34 sq miLand
Sunny 67°
SunnyDew point 56°
1

Today in Portland

NEXT 15 HOURS
Now partly cloudy day 68° 0%
7p partly cloudy night 63° 3%
10p mostly clear night 56° 3%
1a partly cloudy night 54° 0%
4a mostly cloudy night 53° 0%
7a mostly cloudy day 52° 0%
Mostly cloudy
NEXT RAINTomorrow about 9 PM · 31%
→
Tue0%
Partly cloudy Partly cloudy
52
68
A
Wed30%
Chance of showers Chance of showers
59
71
A
Thu30%
Chance of showers Chance of showers
60
73
C
Fri90%
Showers likely Showers likely
45
67
C
Sat10%
Mostly sunny Mostly sunny
43
63
B
Sun20%
Partly cloudy Partly cloudy
44
64
B
Mon10%
Mostly sunny Mostly sunny
37
57
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
·