Harman US

Delevan, NY Weather & Growing Conditions

Overnight
54°F
Mostly Cloudy
Mostly cloudy, with a low around 54. South wind around 9 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 54°F Mostly Cloudy 9 mph S 0%
Wednesday 74°F Partly Sunny 7 to 12 mph S 1%
Wednesday Night 57°F Rain Showers 14 mph S 90%
Thursday 66°F Rain Showers 5 to 10 mph SW 75%
Thursday Night 47°F Mostly Cloudy 3 mph SW 3%
Friday 59°F Mostly Cloudy then Chance Rain Showers 5 mph SW 39%
Friday Night 41°F Rain Showers Likely 3 mph W 68%
Saturday 49°F Rain Showers Likely 6 mph W 71%
Saturday Night 36°F Rain Showers Likely 6 mph NW 71%
Sunday 50°F Slight Chance Rain Showers 9 mph W 23%
Sunday Night 35°F Chance Rain Showers 7 mph W 28%
Monday 50°F Chance Rain Showers 6 to 9 mph W 33%
Monday Night 36°F Chance Rain Showers then Partly Cloudy 5 to 8 mph SW 28%
Tuesday 54°F Mostly Sunny then Slight Chance Rain Showers 8 to 12 mph W 22%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Delevan, NY

Last spring frost
May 14
First fall frost
Oct 6
Growing season
144 days
Hardiness zone
5b

Explore more for Delevan, NY: full frost dates · planting calendar · New York frost dates

Climate data from the nearest NOAA station, Franklinville, Ny (10.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.