Old Brookville, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Old Brookville, a village in Nassau County, New York.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. Northeast wind around 6 mph.
7-day forecast for Old Brookville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 6 mph NE | 0% |
| Tonight | 66°F | Mostly Cloudy | 2 to 6 mph SE | 3% |
| Wednesday | 84°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph SE | 22% |
| Wednesday Night | 72°F | Slight Chance Rain Showers | 5 to 8 mph S | 23% |
| Thursday | 89°F | Chance Showers And Thunderstorms | 5 to 12 mph SW | 32% |
| Thursday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 6 to 12 mph SW | 33% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 to 9 mph SW | 36% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 36% |
| Saturday | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph SW | 31% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 31% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 8 mph W | 15% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 8 mph SW | 15% |
| Monday | 91°F | Sunny | 6 to 12 mph W | 11% |
| Monday Night | 72°F | Slight Chance Rain Showers | 7 to 12 mph W | 17% |
Forecast source: National Weather Service (api.weather.gov) for Old Brookville (40.836, -73.605). Updated through the day.
Growing snapshot for Old Brookville
Last spring frost
Apr 2
First fall frost
Nov 12
Growing season
224 days
Hardiness zone
7b
More local growing data for Old Brookville: nearby ZIP 11545 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Albertson
Atlantic Beach
Baldwin
Barnum Island
Baxter Estates
Bay Park
Bayville
Bellerose
Bellmore
Bethpage
Brookville
Carle Place
Cedarhurst
Centre Island
Cove Neck
East Atlantic Beach
East Hills
East Massapequa
East Meadow
East Norwich
East Rockaway
East Williston
Elmont
Floral Park
Flower Hill
Franklin Square
Freeport
Garden City
Garden City Park
Garden City South
Climate data from the nearest NOAA station, Mineola, Ny (6.6 mi from Old Brookville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.