Port Byron, NY Weather & Growing Conditions
Overnight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. Northeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Mostly Cloudy | 1 mph NE | 0% |
| Saturday | 67°F | Mostly Sunny | 2 mph NE | 1% |
| Saturday Night | 54°F | Mostly Cloudy then Rain Showers Likely | 1 to 5 mph E | 60% |
| Sunday | 66°F | Rain Showers | 7 mph E | 84% |
| Sunday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 2 to 7 mph N | 40% |
| Monday | 64°F | Mostly Sunny | 5 to 9 mph N | 0% |
| Monday Night | 47°F | Mostly Cloudy | 2 to 8 mph NE | 12% |
| Tuesday | 63°F | Chance Rain Showers | 3 to 7 mph E | 25% |
| Tuesday Night | 46°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 7 mph E | 15% |
| Wednesday | 62°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 8 mph E | 23% |
| Wednesday Night | 48°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph E | 29% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 6 mph E | 33% |
| Thursday Night | 50°F | Chance Showers And Thunderstorms | 1 to 5 mph NE | 32% |
| Friday | 68°F | Slight Chance Rain Showers then Partly Sunny | 1 to 7 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Byron, NY
Last spring frost
May 2
First fall frost
Oct 18
Growing season
166 days
Hardiness zone
6a
Explore more for Port Byron, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Auburn, Ny (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.