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.
This Afternoon
73°F
Partly Sunny
Partly sunny, with a high near 73. Southeast wind around 0 mph.
7-day forecast for Rainbow Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Partly Sunny | 0 mph | 1% |
| Tonight | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SE | 23% |
| Sunday | 70°F | Rain Showers | 5 mph SE | 95% |
| Sunday Night | 55°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 10 mph NW | 84% |
| Monday | 67°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph NE | 21% |
| Monday Night | 50°F | Chance Rain Showers | 5 mph NE | 30% |
| Tuesday | 63°F | Chance Rain Showers | 5 to 10 mph NE | 30% |
| Tuesday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 29% |
| Wednesday | 63°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 18% |
| Wednesday Night | 49°F | Slight Chance Rain Showers | 10 mph NE | 20% |
| Thursday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 27% |
| Thursday Night | 48°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Friday | 64°F | Chance Rain Showers | 10 to 15 mph N | 34% |
| Friday Night | 50°F | Chance Rain Showers | 10 to 15 mph N | 34% |
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 Sep 19, 2026.