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.
Overnight
52°F
Partly Cloudy
Partly cloudy, with a low around 52. Southeast wind around 3 mph.
7-day forecast for South Ilion
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Partly Cloudy | 3 mph SE | 2% |
| Wednesday | 75°F | Mostly Sunny | 2 to 6 mph S | 2% |
| Wednesday Night | 57°F | Mostly Cloudy then Chance Light Rain | 6 mph S | 30% |
| Thursday | 72°F | Light Rain | 5 to 9 mph S | 100% |
| Thursday Night | 50°F | Chance Light Rain | 1 to 5 mph SW | 28% |
| Friday | 66°F | Mostly Cloudy | 3 mph SE | 8% |
| Friday Night | 46°F | Slight Chance Light Rain | 1 mph SE | 23% |
| Saturday | 57°F | Chance Light Rain | 1 to 6 mph W | 48% |
| Saturday Night | 40°F | Light Rain Likely | 6 to 9 mph NW | 56% |
| Sunday | 53°F | Chance Light Rain | 6 to 9 mph W | 39% |
| Sunday Night | 36°F | Chance Light Rain | 6 to 9 mph W | 27% |
| Monday | 51°F | Chance Light Rain | 9 to 13 mph W | 46% |
| Monday Night | 35°F | Chance Light Rain | 7 mph W | 37% |
| Tuesday | 56°F | Chance Light Rain | 7 to 12 mph W | 33% |
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 Nov 4, 2026.