Carthage, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Carthage, a village in Jefferson County, New York.
This Afternoon
64°F
Mostly Sunny
Mostly sunny, with a high near 64. Northeast wind around 1 mph.
7-day forecast for Carthage
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Mostly Sunny | 1 mph NE | 0% |
| Tonight | 44°F | Mostly Cloudy then Chance Rain Showers | 1 to 7 mph E | 30% |
| Sunday | 56°F | Rain Showers | 7 mph E | 89% |
| Sunday Night | 41°F | Mostly Cloudy | 2 to 6 mph N | 0% |
| Monday | 58°F | Partly Sunny | 8 mph N | 0% |
| Monday Night | 38°F | Mostly Cloudy | 2 to 6 mph NE | 0% |
| Tuesday | 63°F | Mostly Sunny | 2 to 7 mph NE | 0% |
| Tuesday Night | 39°F | Partly Cloudy | 2 to 7 mph NE | 1% |
| Wednesday | 66°F | Mostly Sunny | 5 mph E | 1% |
| Wednesday Night | 40°F | Mostly Cloudy | 5 mph E | 7% |
| Thursday | 64°F | Partly Sunny | 6 mph E | 13% |
| Thursday Night | 41°F | Slight Chance Rain Showers | 2 to 6 mph NE | 18% |
| Friday | 65°F | Slight Chance Rain Showers | 2 to 7 mph NE | 18% |
| Friday Night | 42°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 6 mph NE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Carthage (43.983, -75.603). Updated through the day.
Growing snapshot for Carthage
Last spring frost
May 8
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4b
More local growing data for Carthage: nearby ZIP 13619 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Lowville, Ny (13.9 mi from Carthage). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.