Delaware, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delaware, a community in Warren County, New Jersey.
Today
84°F
Sunny
Sunny, with a high near 84. Wind around 0 mph.
7-day forecast for Delaware
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 0 mph | 0% |
| Tonight | 61°F | Mostly Cloudy | 0 mph | 1% |
| Wednesday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 0 mph | 51% |
| Wednesday Night | 68°F | Showers And Thunderstorms Likely | 0 mph | 58% |
| Thursday | 88°F | Showers And Thunderstorms | 0 to 5 mph SW | 76% |
| Thursday Night | 70°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph W | 76% |
| Friday | 88°F | Mostly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph W | 62% |
| Friday Night | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 mph | 62% |
| Saturday | 86°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph W | 55% |
| Saturday Night | 67°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 55% |
| Sunday | 88°F | Mostly Sunny | 0 to 5 mph W | 12% |
| Sunday Night | 68°F | Mostly Clear | 0 to 5 mph W | 12% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 18% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov) for Delaware (40.893, -75.069). Updated through the day.
Growing snapshot for Delaware
Last spring frost
Apr 30
First fall frost
Oct 18
Growing season
168 days
Hardiness zone
7a
More local growing data for Delaware: nearby ZIP 07833 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Allamuchy
Alpha
Anderson
Belvidere
Blairstown
Brass Castle
Bridgeville
Broadway
Brookfield
Buttzville
Delaware Park
Great Meadows
Greenwich
Hackettstown
Hainesburg
Harmony
Hope
Johnsonburg
Lopatcong Overlook
Marksboro
Mount Hermon
Mountain Lake
New Village
Oxford
Panther Valley
Phillipsburg
Port Colden
Port Murray
Silver Lake
Stewartsville
Climate data from the nearest NOAA station, Belvidere Brg, Nj (4.5 mi from Delaware). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.