Blairstown, NJ Weather & Growing Conditions
Overnight
46°F
Mostly Clear
Mostly clear, with a low around 46. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 0 mph | 1% |
| Wednesday | 73°F | Sunny | 0 to 5 mph S | 1% |
| Wednesday Night | 55°F | Mostly Cloudy then Patchy Fog | 0 mph | 6% |
| Thursday | 70°F | Light Rain Likely | 0 to 5 mph S | 73% |
| Thursday Night | 59°F | Light Rain | 0 mph | 79% |
| Friday | 70°F | Light Rain Likely | 0 mph | 57% |
| Friday Night | 47°F | Chance Light Rain | 0 mph | 48% |
| Saturday | 65°F | Mostly Sunny then Chance Light Rain | 0 to 5 mph NW | 27% |
| Saturday Night | 40°F | Chance Light Rain | 0 mph | 27% |
| Sunday | 58°F | Mostly Sunny | 0 to 5 mph NW | 8% |
| Sunday Night | 35°F | Partly Cloudy | 0 mph | 4% |
| Monday | 58°F | Sunny | 0 to 5 mph W | 8% |
| Monday Night | 33°F | Mostly Clear | 0 mph | 7% |
| Tuesday | 62°F | Sunny | 0 to 5 mph SW | 5% |
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 Nov 4, 2026.