Blairstown, NJ Weather & Growing Conditions
This Afternoon
73°F
Mostly Sunny
Mostly sunny, with a high near 73. East wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Sunny | 0 mph | 0% |
| Tonight | 54°F | Mostly Cloudy then Chance Rain Showers | 0 mph | 30% |
| Sunday | 68°F | Rain Showers | 0 to 5 mph SE | 99% |
| Sunday Night | 52°F | Showers And Thunderstorms | 0 to 5 mph W | 80% |
| Monday | 68°F | Partly Sunny | 5 mph NE | 8% |
| Monday Night | 46°F | Mostly Cloudy then Chance Rain Showers | 0 to 5 mph NE | 27% |
| Tuesday | 62°F | Chance Rain Showers | 5 mph NE | 27% |
| Tuesday Night | 45°F | Chance Rain Showers | 5 mph NE | 25% |
| Wednesday | 63°F | Slight Chance Rain Showers | 5 to 10 mph NE | 22% |
| Wednesday Night | 46°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Thursday | 62°F | Chance Rain Showers | 5 to 10 mph NE | 33% |
| Thursday Night | 46°F | Chance Rain Showers | 5 to 10 mph NE | 36% |
| Friday | 66°F | Chance Rain Showers | 5 to 10 mph N | 29% |
| Friday Night | 47°F | Chance Rain Showers | 5 mph N | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Blairstown, NJ
Last spring frost
Apr 24
First fall frost
Oct 16
Growing season
176 days
Hardiness zone
6b
Explore more for Blairstown, NJ: full frost dates · planting calendar · New Jersey frost dates
Climate data from the nearest NOAA station, Newton, Nj (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.