Johnstown, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Johnstown, a village in Licking County, Ohio.
This Afternoon
79°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 79. South wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Johnstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Chance Showers And Thunderstorms | 7 mph S | 28% |
| 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 | 36% |
| Tuesday | 67°F | Chance Rain Showers | 14 mph NE | 36% |
| Tuesday Night | 55°F | Showers And Thunderstorms Likely | 15 mph E | 66% |
| Wednesday | 66°F | Showers And Thunderstorms Likely | 12 to 16 mph E | 66% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 10 to 14 mph E | 66% |
| Thursday | 68°F | Slight Chance Rain Showers | 10 mph NE | 24% |
| Thursday Night | 52°F | Mostly Cloudy | 9 mph NE | 14% |
| Friday | 69°F | Mostly Sunny then Slight Chance Rain Showers | 8 to 12 mph NE | 15% |
| Friday Night | 50°F | Slight Chance Rain Showers then Partly Cloudy | 7 to 10 mph NE | 15% |
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 19, 2026.