Portville, NY Weather & Growing Conditions
Today
81°F
Sunny
Sunny, with a high near 81. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Sunny | 5 mph S | 0% |
| Tonight | 58°F | Mostly Clear | 3 mph S | 0% |
| Wednesday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph S | 36% |
| Wednesday Night | 63°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph S | 42% |
| Thursday | 82°F | Showers And Thunderstorms | 2 to 6 mph SW | 84% |
| Thursday Night | 63°F | Showers And Thunderstorms | 3 mph SW | 84% |
| Friday | 81°F | Showers And Thunderstorms | 1 to 5 mph SW | 84% |
| Friday Night | 62°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SW | 84% |
| Saturday | 81°F | Showers And Thunderstorms Likely | 1 to 6 mph W | 56% |
| Saturday Night | 62°F | Showers And Thunderstorms Likely then Mostly Cloudy | 3 mph SW | 56% |
| Sunday | 83°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 2 to 7 mph SW | 23% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph SW | 26% |
| Monday | 82°F | Chance Rain Showers | 6 to 9 mph W | 45% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 2 to 7 mph W | 49% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portville, NY
Last spring frost
May 7
First fall frost
Oct 11
Growing season
156 days
Hardiness zone
5b
Explore more for Portville, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Olean, Ny (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.