Portville, NY Weather Forecast
Local 7-day forecast
Rain Showers Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Portville, NY in one place.
Rain showers likely. Mostly cloudy, with a low around 29. Northwest wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
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: Oct 16, 2026 9:15 PM EDT.
The active forecast window currently covers Oct 16 to Oct 23, 2026 for Portville, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 16 to Oct 23, 2026
- Latest sync
- Oct 16, 2026 9:15 PM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Portville
Tuesday looks like the warmest upcoming period in Portville at 65 degrees F.
Saturday Night is the coolest period ahead with temperatures near 24 degrees F.
The strongest winds are forecast for Tonight at about 13 mph NW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 16, 2026 9:15 PM EDT
- Coverage
- 8 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
A slight chance of snow showers before 10am. Mostly sunny, with a high near 46. North wind 7 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 20%. Little or no snow accumulation expected.
Clear, with a low around 24. West wind 0 to 6 mph.
Sunny, with a high near 58. Southwest wind around 2 mph.
Clear, with a low around 28. South wind around 2 mph.
Sunny, with a high near 63.
Mostly clear, with a low around 30.
Sunny, with a high near 65.
Mostly clear, with a low around 33.
Sunny, with a high near 64.
Mostly clear, with a low around 34.
Sunny, with a high near 64.
Mostly clear, with a low around 36.
Mostly sunny, with a high near 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Oct 16
|
Rain Showers Likely
|
29°F |
13 mph
NW
|
|
Saturday
Oct 17
|
Slight Chance Snow Showers then Mostly Sunny
|
46°F |
7 to 12 mph
N
|
|
Saturday Night
Oct 17
|
Clear
|
24°F |
0 to 6 mph
W
|
|
Sunday
Oct 18
|
Sunny
|
58°F |
2 mph
SW
|
|
Sunday Night
Oct 18
|
Clear
|
28°F |
2 mph
S
|
|
Monday
Oct 19
|
Sunny
|
63°F |
2 mph
E
|
|
Monday Night
Oct 19
|
Mostly Clear
|
30°F |
3 mph
N
|
|
Tuesday
Oct 20
|
Sunny
|
65°F |
1 to 5 mph
N
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
33°F |
1 to 5 mph
NE
|
|
Wednesday
Oct 21
|
Sunny
|
64°F |
1 to 5 mph
NE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
34°F |
3 mph
E
|
|
Thursday
Oct 22
|
Sunny
|
64°F |
2 mph
S
|
|
Thursday Night
Oct 22
|
Mostly Clear
|
36°F |
2 mph
S
|
|
Friday
Oct 23
|
Mostly Sunny
|
64°F |
0 to 5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portville.