Black River, NY Weather & Growing Conditions
Today
78°F
Sunny
Sunny, with a high near 78. West wind 5 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Sunny | 5 to 9 mph W | 0% |
| Tonight | 60°F | Clear | 2 to 7 mph S | 0% |
| Wednesday | 84°F | Sunny | 8 mph S | 0% |
| Wednesday Night | 68°F | Partly Cloudy then Slight Chance Rain Showers | 3 to 8 mph S | 23% |
| Thursday | 82°F | Showers And Thunderstorms Likely | 8 mph S | 61% |
| Thursday Night | 67°F | Showers And Thunderstorms Likely | 7 mph SW | 61% |
| Friday | 80°F | Chance Rain Showers then Chance Showers And Thunderstorms | 8 mph SW | 43% |
| Friday Night | 64°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 48% |
| Saturday | 80°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 48% |
| Saturday Night | 65°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph SW | 22% |
| Sunday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 to 13 mph SW | 21% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 8 to 12 mph SW | 47% |
| Monday | 79°F | Rain Showers Likely | 9 to 14 mph SW | 55% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 6 to 13 mph SW | 55% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Black River, NY
Last spring frost
May 2
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
4b
Explore more for Black River, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Watertown, Ny (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.