Casstown, OH Weather & Growing Conditions
Today
83°F
Mostly Cloudy then Chance Showers And Thunderstorms
A slight chance of rain showers between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 83. Southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Cloudy then Chance Showers And Thunderstorms | 7 mph SE | 63% |
| Tonight | 67°F | Chance Showers And Thunderstorms | 7 mph S | 56% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 57% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 15 mph NE | 65% |
| Monday | 69°F | Rain Showers Likely | 15 mph NE | 60% |
| Monday Night | 54°F | Chance Rain Showers | 13 to 17 mph NE | 45% |
| Tuesday | 69°F | Slight Chance Rain Showers | 15 mph NE | 17% |
| Tuesday Night | 56°F | Chance Rain Showers | 12 to 16 mph NE | 46% |
| Wednesday | 69°F | Chance Rain Showers | 13 mph NE | 54% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 7 to 13 mph NE | 54% |
| Thursday | 70°F | Mostly Cloudy | 9 mph NE | 14% |
| Thursday Night | 54°F | Mostly Cloudy | 7 to 10 mph N | 14% |
| Friday | 71°F | Partly Sunny | 7 to 12 mph NE | 10% |
| Friday Night | 52°F | Partly Cloudy | 6 to 13 mph NE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Casstown, OH
Last spring frost
Apr 24
First fall frost
Oct 17
Growing season
173 days
Hardiness zone
6a
Explore more for Casstown, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, New Carlisle, Oh (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.