Portville, NY Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Portville, NY in one place.
Sunny, with a high near 59. North wind around 13 mph, with gusts as high as 22 mph.
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: May 30, 2026 6:00 PM EDT.
The active forecast window currently covers May 30 to Jun 5, 2026 for Portville, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 5, 2026
- Latest sync
- May 30, 2026 6:00 PM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Portville
Friday looks like the warmest upcoming period in Portville at 82 degrees F.
Tonight is the coolest period ahead with temperatures near 38 degrees F.
The strongest winds are forecast for This Afternoon at about 13 mph N.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- May 30, 2026 6:00 PM 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
Patchy fog after 1am. Clear, with a low around 38. Northwest wind 0 to 12 mph, with gusts as high as 21 mph.
Patchy fog before 9am. Sunny, with a high near 70. West wind 1 to 7 mph.
Mostly clear, with a low around 44. West wind 1 to 7 mph.
Sunny, with a high near 70. North wind 1 to 7 mph.
Mostly clear, with a low around 43.
Sunny, with a high near 69.
Mostly clear, with a low around 46.
Sunny, with a high near 74.
Clear, with a low around 48.
Sunny, with a high near 80.
Mostly clear, with a low around 54.
Mostly sunny, with a high near 82.
A chance of rain showers after 2am. Mostly cloudy, with a low around 58.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
May 30
|
Sunny
|
59°F |
13 mph
N
|
|
Tonight
May 30
|
Clear then Patchy Fog
|
38°F |
0 to 12 mph
NW
|
|
Sunday
May 31
|
Patchy Fog then Sunny
|
70°F |
1 to 7 mph
W
|
|
Sunday Night
May 31
|
Mostly Clear
|
44°F |
1 to 7 mph
W
|
|
Monday
Jun 1
|
Sunny
|
70°F |
1 to 7 mph
N
|
|
Monday Night
Jun 1
|
Mostly Clear
|
43°F |
1 to 7 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
69°F |
0 to 8 mph
N
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
46°F |
1 to 7 mph
N
|
|
Wednesday
Jun 3
|
Sunny
|
74°F |
1 to 6 mph
N
|
|
Wednesday Night
Jun 3
|
Clear
|
48°F |
0 to 3 mph
N
|
|
Thursday
Jun 4
|
Sunny
|
80°F |
0 to 6 mph
NW
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
54°F |
1 to 5 mph
W
|
|
Friday
Jun 5
|
Mostly Sunny
|
82°F |
2 to 8 mph
W
|
|
Friday Night
Jun 5
|
Mostly Cloudy then Chance Rain Showers
|
58°F |
3 to 7 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portville.