Stewartsville, NJ Weather & Growing Conditions
Today
73°F
Sunny
Sunny. High near 73, with temperatures falling to around 67 in the afternoon. Southwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Sunny | 0 to 5 mph SW | 1% |
| Tonight | 56°F | Mostly Cloudy then Patchy Fog | 0 to 5 mph S | 4% |
| Thursday | 71°F | Light Rain Likely | 5 to 10 mph S | 70% |
| Thursday Night | 59°F | Light Rain | 0 to 5 mph SW | 82% |
| Friday | 69°F | Light Rain Likely | 0 mph | 64% |
| Friday Night | 48°F | Light Rain Likely | 0 mph | 61% |
| Saturday | 64°F | Mostly Sunny then Slight Chance Light Rain | 0 to 5 mph W | 17% |
| Saturday Night | 41°F | Slight Chance Light Rain | 5 mph W | 17% |
| Sunday | 58°F | Mostly Sunny | 5 to 10 mph NW | 6% |
| Sunday Night | 35°F | Partly Cloudy | 5 mph W | 5% |
| Monday | 58°F | Sunny then Slight Chance Light Rain | 5 to 10 mph W | 15% |
| Monday Night | 34°F | Slight Chance Light Rain then Mostly Clear | 0 to 5 mph W | 15% |
| Tuesday | 62°F | Sunny | 5 to 10 mph W | 3% |
| Tuesday Night | 35°F | Mostly Clear | 0 to 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Stewartsville, NJ
Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
7a
Explore more for Stewartsville, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Phillipsburg-Easton Brg, Nj (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.