Johnstown, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Johnstown, a village in Licking County, Ohio.
Tonight
65°F
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A chance of showers and thunderstorms before 11pm, then showers and thunderstorms likely. Cloudy, with a low around 65. South wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Johnstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 mph S | 71% |
| Sunday | 79°F | Showers And Thunderstorms | 6 to 10 mph W | 77% |
| Sunday Night | 55°F | Showers And Thunderstorms Likely | 12 mph NE | 71% |
| Monday | 68°F | Chance Rain Showers | 15 mph NE | 39% |
| Monday Night | 53°F | Chance Rain Showers | 14 mph NE | 28% |
| Tuesday | 69°F | Chance Rain Showers | 13 mph NE | 25% |
| Tuesday Night | 57°F | Showers And Thunderstorms Likely | 14 mph NE | 69% |
| Wednesday | 67°F | Showers And Thunderstorms Likely | 15 mph E | 74% |
| Wednesday Night | 54°F | Showers And Thunderstorms Likely | 15 mph E | 74% |
| Thursday | 68°F | Chance Rain Showers | 9 to 13 mph E | 43% |
| Thursday Night | 52°F | Mostly Cloudy | 9 mph NE | 9% |
| Friday | 70°F | Mostly Sunny | 7 to 10 mph NE | 10% |
| Friday Night | 51°F | Partly Cloudy | 6 to 10 mph NE | 10% |
| Saturday | 72°F | Mostly Sunny | 9 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Johnstown (40.149, -82.687). Updated through the day.
Growing snapshot for Johnstown
Last spring frost
Apr 27
First fall frost
Oct 17
Growing season
172 days
Hardiness zone
6a
More local growing data for Johnstown: nearby ZIP 43031 weather · frost dates · planting calendar · Ohio frost dates
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Climate data from the nearest NOAA station, Centerburg 2 Se, Oh (8.9 mi from Johnstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.