Port Byron, NY Weather & Growing Conditions
Overnight
55°F
Partly Cloudy
Partly cloudy, with a low around 55. South wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Partly Cloudy | 6 mph S | 0% |
| Wednesday | 76°F | Partly Sunny | 7 to 10 mph S | 0% |
| Wednesday Night | 60°F | Cloudy then Rain Showers Likely | 10 to 14 mph S | 68% |
| Thursday | 73°F | Rain Showers | 2 to 14 mph SW | 90% |
| Thursday Night | 48°F | Mostly Cloudy | 2 mph SW | 11% |
| Friday | 65°F | Mostly Cloudy | 3 mph S | 14% |
| Friday Night | 44°F | Chance Rain Showers | 2 mph N | 42% |
| Saturday | 55°F | Rain Showers Likely | 3 to 8 mph W | 62% |
| Saturday Night | 39°F | Rain Showers Likely | 6 mph NW | 62% |
| Sunday | 54°F | Chance Rain Showers | 6 to 9 mph W | 35% |
| Sunday Night | 36°F | Chance Rain Showers | 6 mph W | 26% |
| Monday | 54°F | Chance Rain Showers | 5 to 10 mph W | 36% |
| Monday Night | 36°F | Chance Rain Showers | 5 mph SW | 25% |
| Tuesday | 57°F | Chance Rain Showers | 5 to 12 mph W | 30% |
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 Nov 4, 2026.