Sweetwater, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sweetwater, a community in Atlantic County, New Jersey.
This Afternoon
74°F
Partly Sunny
Partly sunny, with a high near 74. East wind around 5 mph.
7-day forecast for Sweetwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Partly Sunny | 5 mph E | 2% |
| Tonight | 60°F | Mostly Cloudy | 0 to 5 mph E | 4% |
| Sunday | 78°F | Chance Rain Showers | 5 to 10 mph SE | 28% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 54% |
| Monday | 71°F | Chance Rain Showers | 5 mph NE | 41% |
| Monday Night | 56°F | Chance Rain Showers | 5 mph NE | 41% |
| Tuesday | 67°F | Chance Rain Showers | 5 to 10 mph NE | 38% |
| Tuesday Night | 54°F | Chance Rain Showers | 10 mph NE | 38% |
| Wednesday | 65°F | Chance Rain Showers | 10 to 15 mph NE | 26% |
| Wednesday Night | 55°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Thursday | 64°F | Chance Rain Showers | 15 mph NE | 37% |
| Thursday Night | 52°F | Chance Rain Showers | 10 to 15 mph N | 39% |
| Friday | 66°F | Chance Rain Showers | 10 mph N | 37% |
| Friday Night | 51°F | Chance Rain Showers | 5 to 10 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov) for Sweetwater (39.613, -74.651). Updated through the day.
Growing snapshot for Sweetwater
Last spring frost
Apr 18
First fall frost
Oct 29
Growing season
190 days
Hardiness zone
7a
More local growing data for Sweetwater: nearby ZIP 08215 weather · frost dates · planting calendar · New Jersey frost dates
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Climate data from the nearest NOAA station, Atlantic City Intl Ap, Nj (9.8 mi from Sweetwater). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.