Rahway, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rahway, a city in Union County, New Jersey.
Tonight
62°F
Mostly Cloudy
Mostly cloudy. Low around 62, with temperatures rising to around 64 overnight. Southeast wind 3 to 7 mph.
7-day forecast for Rahway
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Mostly Cloudy | 3 to 7 mph SE | 12% |
| Sunday | 74°F | Rain Showers then Rain Likely | 6 to 9 mph SE | 82% |
| Sunday Night | 60°F | Rain Likely then Rain Showers Likely | 5 to 10 mph W | 81% |
| Monday | 69°F | Chance Rain Showers | 7 to 12 mph NE | 28% |
| Monday Night | 55°F | Chance Rain Showers | 9 mph NE | 30% |
| Tuesday | 66°F | Chance Rain Showers | 12 mph NE | 31% |
| Tuesday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 12 mph NE | 31% |
| Wednesday | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 15 mph NE | 19% |
| Wednesday Night | 53°F | Slight Chance Rain Showers | 14 mph NE | 22% |
| Thursday | 65°F | Chance Rain Showers | 15 mph NE | 29% |
| Thursday Night | 53°F | Chance Rain Showers | 15 mph NE | 36% |
| Friday | 66°F | Chance Rain Showers | 12 to 16 mph N | 36% |
| Friday Night | 54°F | Chance Rain Showers | 12 to 15 mph N | 36% |
| Saturday | 70°F | Chance Rain Showers | 10 to 14 mph N | 30% |
Forecast source: National Weather Service (api.weather.gov) for Rahway (40.607, -74.281). Updated through the day.
Growing snapshot for Rahway
Last spring frost
Apr 11
First fall frost
Oct 31
Growing season
202 days
Hardiness zone
7b
More local growing data for Rahway: nearby ZIP 07065 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
Chatham
Connecticut Farms
Cranford
Elizabeth
Fanwood
Garwood
Kean University
Kenilworth
Linden
Mountainside
New Providence
North Plainfield
Plainfield
Roselle
Roselle Park
Summit
Union
Vauxhall
Westfield
Climate data from the nearest NOAA station, Cranford, Nj (4.7 mi from Rahway). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.