Portville, NY Weather Forecast
Local 7-day forecast
Areas Of Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Portville, NY in one place.
Areas of smoke between 11am and 5pm, then areas of smoke and a slight chance of rain showers. Mostly sunny, with a high near 93. West wind 5 to 9 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Portville, 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: Jul 14, 2026 7:52 PM EDT.
The active forecast window currently covers Jul 15 to Jul 20, 2026 for Portville, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 7:52 PM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Portville
Wednesday looks like the warmest upcoming period in Portville at 93 degrees F.
Thursday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 9 mph W.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 7:52 PM EDT
- Coverage
- 6 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
Areas of smoke and a slight chance of rain showers before 8pm. Partly cloudy, with a low around 63. West wind 1 to 8 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 85. West wind 1 to 9 mph.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 83.
A slight chance of showers and thunderstorms between 8pm and 2am, then showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Rain showers likely before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jul 15
|
Areas Of Smoke
|
93°F |
5 to 9 mph
W
|
|
Wednesday Night
Jul 15
|
Areas Of Smoke then Partly Cloudy
|
63°F |
1 to 8 mph
W
|
|
Thursday
Jul 16
|
Mostly Sunny
|
85°F |
1 to 9 mph
W
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
58°F |
0 to 8 mph
NW
|
|
Friday
Jul 17
|
Mostly Sunny
|
83°F |
0 to 5 mph
NW
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms
|
59°F |
1 to 5 mph
E
|
|
Saturday
Jul 18
|
Showers And Thunderstorms Likely
|
82°F |
1 to 7 mph
SW
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely
|
61°F |
6 mph
SW
|
|
Sunday
Jul 19
|
Rain Showers Likely
|
80°F |
6 mph
NW
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
58°F |
1 to 5 mph
W
|
|
Monday
Jul 20
|
Chance Showers And Thunderstorms
|
82°F |
1 to 6 mph
SW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
60°F |
6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portville.