Williamsville, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Williamsville, a village in Erie County, New York.
Today
69°F
Partly Sunny
Partly sunny, with a high near 69. East wind around 6 mph.
7-day forecast for Williamsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Partly Sunny | 6 mph E | 1% |
| Tonight | 56°F | Chance Rain Showers | 3 to 7 mph E | 53% |
| Sunday | 66°F | Rain Showers Likely | 2 to 9 mph NE | 70% |
| Sunday Night | 49°F | Mostly Cloudy | 3 to 8 mph NE | 3% |
| Monday | 62°F | Mostly Cloudy | 10 mph NE | 0% |
| Monday Night | 46°F | Mostly Cloudy | 6 to 9 mph NE | 3% |
| Tuesday | 63°F | Mostly Cloudy | 7 to 12 mph E | 11% |
| Tuesday Night | 46°F | Mostly Cloudy then Slight Chance Rain Showers | 8 to 13 mph E | 17% |
| Wednesday | 64°F | Chance Rain Showers | 9 to 13 mph E | 28% |
| Wednesday Night | 48°F | Chance Rain Showers | 7 to 13 mph E | 33% |
| Thursday | 65°F | Chance Rain Showers | 7 to 10 mph E | 32% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 6 to 10 mph E | 19% |
| Friday | 68°F | Slight Chance Rain Showers then Partly Sunny | 6 to 10 mph NE | 16% |
| Friday Night | 48°F | Partly Cloudy | 5 to 9 mph NE | 14% |
Forecast source: National Weather Service (api.weather.gov) for Williamsville (42.958, -78.740). Updated through the day.
Growing snapshot for Williamsville
Last spring frost
Apr 24
First fall frost
Oct 26
Growing season
183 days
Hardiness zone
6b
More local growing data for Williamsville: nearby ZIP 14221 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Buffalo, Ny (2.6 mi from Williamsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.