Portland, NY Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Portland, NY in one place.
A chance of showers and thunderstorms before 5am, then showers and thunderstorms. Cloudy. Low around 57, with temperatures rising to around 66 overnight. South wind around 14 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Portland, NY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 15, 2026 6:49 AM EDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for Portland, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 6:49 AM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Portland
Saturday looks like the warmest upcoming period in Portland at 77 degrees F.
Sunday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Sunday at about 14 to 17 mph W.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 6:49 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- BUF
- Radar station
- KBUF
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers and thunderstorms. Mostly cloudy. High near 72, with temperatures falling to around 64 in the afternoon. Southwest wind 10 to 16 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and 11pm, then showers and thunderstorms. Mostly cloudy, with a low around 57. Southwest wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers likely before 11am, then showers and thunderstorms. Mostly cloudy, with a high near 73. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a low around 49. Southwest wind 7 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers before 2pm. Mostly cloudy, with a high near 63. West wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Mostly cloudy, with a low around 49. South wind 2 to 8 mph.
A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 77. South wind 9 to 13 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.
A chance of rain showers. Mostly cloudy, with a high near 48. Chance of precipitation is 50%.
A chance of rain showers before 8pm, then a chance of snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
A slight chance of snow showers before 2pm. Partly sunny, with a high near 44.
Mostly clear, with a low around 33.
Mostly sunny, with a high near 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 15
|
Chance Showers And Thunderstorms
|
57°F |
14 mph
S
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms
|
72°F |
10 to 16 mph
SW
|
|
Wednesday Night
Apr 15
|
Showers And Thunderstorms
|
57°F |
10 mph
SW
|
|
Thursday
Apr 16
|
Showers And Thunderstorms
|
73°F |
10 to 15 mph
SW
|
|
Thursday Night
Apr 16
|
Showers And Thunderstorms
|
49°F |
7 to 13 mph
SW
|
|
Friday
Apr 17
|
Chance Rain Showers
|
63°F |
8 mph
W
|
|
Friday Night
Apr 17
|
Mostly Cloudy
|
49°F |
2 to 8 mph
S
|
|
Saturday
Apr 18
|
Showers And Thunderstorms Likely
|
77°F |
9 to 13 mph
S
|
|
Saturday Night
Apr 18
|
Showers And Thunderstorms Likely
|
40°F |
14 mph
SW
|
|
Sunday
Apr 19
|
Chance Rain Showers
|
48°F |
14 to 17 mph
W
|
|
Sunday Night
Apr 19
|
Chance Snow Showers
|
31°F |
16 mph
W
|
|
Monday
Apr 20
|
Slight Chance Snow Showers
|
44°F |
15 mph
W
|
|
Monday Night
Apr 20
|
Mostly Clear
|
33°F |
8 to 12 mph
SW
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
60°F |
12 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portland.