Port Byron, NY Weather & Growing Conditions
Today
68°F
Partly Sunny
Partly sunny, with a high near 68. East wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Partly Sunny | 2 mph E | 1% |
| Tonight | 54°F | Mostly Cloudy then Rain | 1 to 6 mph E | 76% |
| Sunday | 64°F | Rain | 6 to 9 mph SE | 84% |
| Sunday Night | 46°F | Areas Of Fog | 2 to 9 mph N | 4% |
| Monday | 62°F | Partly Sunny | 5 to 9 mph N | 0% |
| Monday Night | 44°F | Mostly Cloudy | 2 to 8 mph NE | 3% |
| Tuesday | 64°F | Partly Sunny | 2 to 7 mph NE | 4% |
| Tuesday Night | 44°F | Mostly Cloudy | 2 to 7 mph E | 3% |
| Wednesday | 65°F | Partly Sunny | 3 to 8 mph E | 6% |
| Wednesday Night | 45°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 7 mph E | 23% |
| Thursday | 64°F | Slight Chance Rain Showers | 6 mph E | 23% |
| Thursday Night | 46°F | Slight Chance Rain Showers | 1 to 5 mph NE | 21% |
| Friday | 66°F | Slight Chance Rain Showers | 1 to 7 mph NE | 17% |
| Friday Night | 47°F | Slight Chance Rain Showers | 1 to 6 mph NE | 16% |
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 (9.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.