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.
Today
82°F
Areas Of Fog then Sunny
Areas of fog before 10am. Sunny, with a high near 82. Southeast wind around 2 mph.
7-day forecast for St. Bonaventure
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Areas Of Fog then Sunny | 2 mph SE | 0% |
| Tonight | 58°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph SE | 38% |
| Wednesday Night | 64°F | Chance Showers And Thunderstorms | 3 mph S | 43% |
| Thursday | 83°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 1 to 5 mph SW | 84% |
| Thursday Night | 63°F | Showers And Thunderstorms | 0 to 3 mph SW | 84% |
| Friday | 82°F | Showers And Thunderstorms | 0 to 5 mph SW | 84% |
| Friday Night | 62°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 mph SW | 84% |
| Saturday | 82°F | Showers And Thunderstorms Likely | 0 to 6 mph SW | 56% |
| Saturday Night | 62°F | Showers And Thunderstorms Likely then Mostly Cloudy | 3 mph SW | 56% |
| Sunday | 84°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 1 to 7 mph SW | 24% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph SW | 29% |
| Monday | 83°F | Chance Rain Showers | 5 to 9 mph W | 47% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 2 to 7 mph W | 48% |
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 Aug 4, 2026.