Carthage, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Carthage, a village in Jefferson County, New York.
Today
79°F
Sunny
Sunny, with a high near 79. West wind around 8 mph.
7-day forecast for Carthage
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Sunny | 8 mph W | 0% |
| Tonight | 57°F | Clear | 1 to 5 mph SW | 0% |
| Wednesday | 85°F | Sunny | 6 mph S | 0% |
| Wednesday Night | 66°F | Partly Cloudy then Slight Chance Rain Showers | 1 to 5 mph S | 22% |
| Thursday | 83°F | Showers And Thunderstorms Likely | 6 mph S | 69% |
| Thursday Night | 65°F | Showers And Thunderstorms Likely | 3 mph SW | 69% |
| Friday | 81°F | Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 6 mph SW | 50% |
| Friday Night | 62°F | Chance Showers And Thunderstorms | 3 mph SW | 47% |
| Saturday | 81°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 47% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 5 mph SW | 26% |
| Sunday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 10 mph SW | 22% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 8 mph SW | 46% |
| Monday | 80°F | Rain Showers Likely | 6 to 10 mph SW | 57% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 3 to 9 mph SW | 57% |
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 Aug 4, 2026.