Arcanum, OH Weather & Growing Conditions
Tonight
61°F
Mostly Cloudy then Rain Showers Likely
Rain showers likely after 3am. Mostly cloudy, with a low around 61. Southeast wind 12 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Mostly Cloudy then Rain Showers Likely | 12 to 17 mph SE | 67% |
| Wednesday | 68°F | Rain Showers | 13 to 20 mph S | 98% |
| Wednesday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 7 to 12 mph SW | 15% |
| Thursday | 64°F | Mostly Sunny | 8 to 15 mph SW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 3 to 9 mph W | 1% |
| Friday | 58°F | Partly Sunny | 3 to 10 mph NW | 14% |
| Friday Night | 38°F | Partly Cloudy | 10 mph NW | 14% |
| Saturday | 54°F | Slight Chance Light Rain | 9 mph NW | 18% |
| Saturday Night | 34°F | Mostly Cloudy | 6 mph W | 6% |
| Sunday | 56°F | Mostly Sunny | 5 to 12 mph W | 12% |
| Sunday Night | 34°F | Partly Cloudy | 7 to 10 mph W | 13% |
| Monday | 58°F | Sunny | 7 to 13 mph W | 14% |
| Monday Night | 38°F | Mostly Clear | 12 mph SW | 10% |
| Tuesday | 63°F | Sunny | 12 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Arcanum, OH
Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
180 days
Hardiness zone
6a
Explore more for Arcanum, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Greenville Wtp, Oh (10.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.