Johnstown, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Johnstown, a city in Fulton County, New York.
Tonight
42°F
Mostly Cloudy
Mostly cloudy, with a low around 42. North wind 1 to 5 mph.
7-day forecast for Johnstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Mostly Cloudy | 1 to 5 mph N | 0% |
| Saturday | 64°F | Mostly Sunny | 3 mph E | 0% |
| Saturday Night | 46°F | Mostly Cloudy then Chance Rain Showers | 3 mph E | 36% |
| Sunday | 58°F | Rain Showers | 6 mph E | 98% |
| Sunday Night | 47°F | Rain Showers | 5 mph NE | 93% |
| Monday | 63°F | Mostly Sunny | 3 to 7 mph NE | 2% |
| Monday Night | 43°F | Mostly Cloudy | 6 mph NE | 3% |
| Tuesday | 60°F | Mostly Cloudy | 7 mph NE | 9% |
| Tuesday Night | 42°F | Mostly Cloudy | 6 mph E | 6% |
| Wednesday | 59°F | Mostly Sunny | 6 to 10 mph E | 8% |
| Wednesday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph E | 24% |
| Thursday | 59°F | Chance Rain Showers | 7 mph E | 29% |
| Thursday Night | 45°F | Chance Rain Showers | 5 mph NE | 32% |
| Friday | 66°F | Chance Rain Showers | 6 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov) for Johnstown (43.007, -74.375). Updated through the day.
Growing snapshot for Johnstown
Last spring frost
May 11
First fall frost
Oct 3
Growing season
143 days
Hardiness zone
5b
More local growing data for Johnstown: nearby ZIP 12095 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gloversville 7Nw (Peck Lake), Ny (5.5 mi from Johnstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.