Johnstown, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Johnstown, a city in Fulton County, New York.
Tonight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. West wind around 1 mph.
7-day forecast for Johnstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Partly Cloudy | 1 mph W | 6% |
| Wednesday | 72°F | Mostly Sunny | 0 to 6 mph S | 6% |
| Wednesday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 5 mph E | 19% |
| Thursday | 67°F | Rain Showers | 3 to 7 mph S | 91% |
| Thursday Night | 51°F | Chance Rain Showers | 3 mph SW | 28% |
| Friday | 63°F | Chance Rain Showers then Chance Light Rain | 3 mph W | 51% |
| Friday Night | 46°F | Chance Light Rain | 2 mph NW | 51% |
| Saturday | 58°F | Chance Light Rain | 2 to 6 mph NW | 44% |
| Saturday Night | 39°F | Chance Light Rain | 8 mph W | 42% |
| Sunday | 54°F | Chance Light Rain then Partly Sunny | 6 to 10 mph W | 26% |
| Sunday Night | 33°F | Slight Chance Light Rain | 6 mph W | 23% |
| Monday | 53°F | Chance Light Rain | 7 to 13 mph W | 33% |
| Monday Night | 32°F | Chance Light Rain | 8 mph W | 33% |
| Tuesday | 55°F | Chance Light Rain | 6 to 14 mph W | 28% |
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 Nov 4, 2026.