10-day forecast for Portland, NY: 55° to 84°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
82°
Best day: Sunday, August 9
84° · 0.3 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1084° / 68°0.3
Morning70°feels 71°
Afternoon78°feels 80°
Evening81°feels 88°
Overnight68°feels 69°
84 °
Portland, Monday, 10 August
Rain. High 84°, low 68°.
Pressure29.94 inHg
Wind17.2 mph SW
Humidity84%
Visibility6.2 mi
Dew point67°
Tue, 1178° / 68°0.13
Morning70°feels 71°
Afternoon77°feels 76°
Evening72°feels 72°
Overnight69°feels 70°
78 °
Portland, Tuesday, 11 August
Rain. High 78°, low 68°.
Pressure29.97 inHg
Wind7.2 mph NW
Humidity51%
Visibility6.2 mi
Dew point55°
Wed, 1275° / 66°0.06
Morning67°feels 67°
Afternoon72°feels 73°
Evening73°feels 74°
Overnight67°feels 66°
75 °
Portland, Wednesday, 12 August
Light rain. High 75°, low 66°.
Pressure29.80 inHg
Wind6.3 mph S
Humidity90%
Visibility6.2 mi
Dew point66°
Thu, 1375° / 65°0.04
Morning66°feels 66°
Afternoon73°feels 72°
Evening68°feels 67°
Overnight70°feels 70°
75 °
Portland, Thursday, 13 August
Light rain. High 75°, low 65°.
Pressure29.94 inHg
Wind15.6 mph NW
Humidity53%
Visibility6.2 mi
Dew point51°
Fri, 1470° / 58°0
Morning63°feels 62°
Afternoon67°feels 66°
Evening64°feels 63°
Overnight62°feels 61°
70 °
Portland, Friday, 14 August
Clear. High 70°, low 58°.
Pressure30.12 inHg
Wind9.7 mph N
Humidity49%
Visibility—
Dew point47°
Sat, 1569° / 57°0
Morning62°feels 61°
Afternoon66°feels 64°
Evening62°feels 61°
Overnight59°feels 58°
69 °
Portland, Saturday, 15 August
Overcast. High 69°, low 57°.
Pressure30.30 inHg
Wind10.5 mph N
Humidity50%
Visibility—
Dew point46°
Sun, 1664° / 55°0.02
Morning59°feels 58°
Afternoon60°feels 60°
Evening64°feels 63°
Overnight62°feels 61°
64 °
Portland, Sunday, 16 August
Light rain. High 64°, low 55°.
Pressure30.12 inHg
Wind11.1 mph SE
Humidity78%
Visibility—
Dew point53°
Mon, 1772° / 62°0.01
Morning66°feels 65°
Afternoon71°feels 70°
Evening68°feels 68°
Overnight65°feels 65°
72 °
Portland, Monday, 17 August
Light rain. High 72°, low 62°.
Pressure30.00 inHg
Wind8.7 mph N
Humidity56%
Visibility—
Dew point53°
Tue, 1875° / 62°0
Morning67°feels 67°
Afternoon74°feels 73°
Evening70°feels 69°
Overnight67°feels 66°
75 °
Portland, Tuesday, 18 August
Overcast. High 75°, low 62°.
Pressure29.97 inHg
Wind7.8 mph N
Humidity49%
Visibility—
Dew point53°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Portland, NY around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.