St. Bonaventure, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Bonaventure, a community in Cattaraugus County, New York.
Overnight
49°F
Mostly Clear
Mostly clear, with a low around 49. Southeast wind around 3 mph.
7-day forecast for St. Bonaventure
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Mostly Clear | 3 mph SE | 0% |
| Wednesday | 75°F | Partly Sunny | 3 to 10 mph SE | 0% |
| Wednesday Night | 57°F | Rain Showers | 10 mph S | 92% |
| Thursday | 69°F | Rain Showers Likely | 6 to 10 mph SW | 74% |
| Thursday Night | 44°F | Partly Cloudy | 1 to 5 mph SW | 0% |
| Friday | 62°F | Mostly Cloudy then Chance Rain Showers | 1 to 5 mph SW | 31% |
| Friday Night | 38°F | Rain Showers Likely | 2 mph W | 60% |
| Saturday | 52°F | Rain Showers Likely | 3 to 7 mph W | 63% |
| Saturday Night | 31°F | Rain Showers Likely | 6 mph W | 63% |
| Sunday | 52°F | Slight Chance Rain Showers | 6 to 10 mph W | 17% |
| Sunday Night | 29°F | Slight Chance Rain Showers | 5 to 8 mph W | 23% |
| Monday | 52°F | Chance Rain Showers | 6 to 10 mph W | 29% |
| Monday Night | 30°F | Slight Chance Rain Showers then Partly Cloudy | 6 mph W | 24% |
| Tuesday | 56°F | Mostly Sunny then Slight Chance Rain Showers | 6 to 12 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov) for St. Bonaventure (42.079, -78.474). Updated through the day.
Growing snapshot for St. Bonaventure
Last spring frost
May 7
First fall frost
Oct 11
Growing season
156 days
Hardiness zone
5b
More local growing data for St. Bonaventure: nearby ZIP 14778 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Allegany
Arcade
Cattaraugus
Delevan
East Randolph
Ellicottville
Franklinville
Gowanda
Lime Lake
Limestone
Little Valley
Machias
Olean
Perrysburg
Randolph
Salamanca
South Dayton
West Valley
Weston Mills
Yorkshire
Climate data from the nearest NOAA station, Olean, Ny (1.6 mi from St. Bonaventure). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.