St. Bonaventure, NY Weather & Growing Conditions
Tonight
49°F
Partly Cloudy
Partly cloudy, with a low around 49. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Partly Cloudy | 5 mph SE | 0% |
| Wednesday | 75°F | Partly Sunny | 2 to 9 mph SE | 0% |
| Wednesday Night | 58°F | Rain Showers | 8 mph S | 96% |
| Thursday | 70°F | Rain Showers | 6 to 10 mph SW | 96% |
| Thursday Night | 44°F | Mostly Cloudy | 0 to 3 mph SW | 5% |
| Friday | 63°F | Chance Rain Showers | 0 to 3 mph W | 19% |
| Friday Night | 40°F | Chance Rain Showers | 2 mph NW | 40% |
| Saturday | 54°F | Chance Rain Showers | 1 to 7 mph NW | 48% |
| Saturday Night | 32°F | Chance Rain Showers | 2 to 6 mph W | 39% |
| Sunday | 54°F | Partly Sunny then Slight Chance Light Rain | 2 to 8 mph W | 16% |
| Sunday Night | 30°F | Slight Chance Light Rain then Chance Rain Showers | 5 mph W | 27% |
| Monday | 54°F | Chance Light Rain | 6 to 9 mph W | 29% |
| Monday Night | 31°F | Slight Chance Light Rain then Chance Rain Showers | 6 mph SW | 24% |
| Tuesday | 56°F | Slight Chance Light Rain | 7 to 13 mph W | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Bonaventure, NY
Last spring frost
May 7
First fall frost
Oct 11
Growing season
156 days
Hardiness zone
5b
Explore more for St. Bonaventure, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Olean, Ny (1.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.