Mamaroneck, NY Weather & Growing Conditions
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 5 mph NE | 0% |
| Tonight | 66°F | Mostly Cloudy | 5 mph S | 3% |
| Wednesday | 82°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph SE | 26% |
| Wednesday Night | 72°F | Chance Rain Showers | 3 to 7 mph S | 27% |
| Thursday | 87°F | Chance Showers And Thunderstorms | 3 to 9 mph SW | 41% |
| Thursday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph SW | 40% |
| Friday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 8 mph SW | 42% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 41% |
| Saturday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph SW | 33% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 7 mph W | 33% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 mph W | 15% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 7 mph SW | 15% |
| Monday | 90°F | Sunny | 5 to 10 mph W | 13% |
| Monday Night | 72°F | Slight Chance Rain Showers | 6 to 9 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mamaroneck, NY
Last spring frost
Apr 20
First fall frost
Oct 26
Growing season
189 days
Hardiness zone
7b
Explore more for Mamaroneck, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Dobbs Ferry-Ardsley, Ny (6.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.