South Ilion, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Ilion, a community in Herkimer County, New York.
Today
82°F
Sunny
Sunny, with a high near 82. West wind 1 to 5 mph.
7-day forecast for South Ilion
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 1 to 5 mph W | 0% |
| Tonight | 61°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 86°F | Mostly Sunny | 1 to 5 mph S | 0% |
| Wednesday Night | 68°F | Partly Cloudy then Chance Rain Showers | 3 mph S | 28% |
| Thursday | 87°F | Showers And Thunderstorms | 5 mph S | 83% |
| Thursday Night | 68°F | Showers And Thunderstorms then Scattered Showers And Thunderstorms | 3 mph SW | 83% |
| Friday | 85°F | Chance Showers And Thunderstorms | 1 to 6 mph W | 74% |
| Friday Night | 66°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 mph SW | 74% |
| Saturday | 84°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 62% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely | 5 mph W | 62% |
| Sunday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph SW | 27% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms | 6 mph SW | 35% |
| Monday | 84°F | Chance Rain Showers | 5 to 10 mph W | 54% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 to 9 mph W | 54% |
Forecast source: National Weather Service (api.weather.gov) for South Ilion (42.994, -75.055). Updated through the day.
Growing snapshot for South Ilion
Last spring frost
May 5
First fall frost
Oct 4
Growing season
151 days
Hardiness zone
5b
More local growing data for South Ilion: nearby ZIP 13357 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Cold Brook
Dolgeville
East Frankfort
East Herkimer
Frankfort
Herkimer
Ilion
Little Falls
Middleville
Mohawk
Newport
Old Forge
Poland
Salisbury Center
Thendara
Climate data from the nearest NOAA station, Little Falls City Rsch, Ny (12.4 mi from South Ilion). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.