Rainbow Lakes, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rainbow Lakes, a community in Morris County, New Jersey.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. East wind around 0 mph.
7-day forecast for Rainbow Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 64°F | Mostly Cloudy | 0 mph | 1% |
| Wednesday | 82°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 36% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 42% |
| Thursday | 87°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SW | 52% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 52% |
| Friday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 48% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 48% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 43% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 43% |
| Sunday | 87°F | Mostly Sunny | 0 to 5 mph W | 11% |
| Sunday Night | 70°F | Mostly Clear | 0 to 5 mph W | 11% |
| Monday | 88°F | Sunny | 0 to 10 mph W | 13% |
| Monday Night | 69°F | Partly Cloudy | 0 to 5 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Rainbow Lakes (40.874, -74.455). Updated through the day.
Growing snapshot for Rainbow Lakes
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6b
More local growing data for Rainbow Lakes: nearby ZIP 07046 weather · frost dates · planting calendar · New Jersey frost dates
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Climate data from the nearest NOAA station, Boonton 1 Se, Nj (2.4 mi from Rainbow Lakes). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.