Old Washington, OH Weather & Growing Conditions
Tonight
58°F
Mostly Clear
Mostly clear, with a low around 58. Southeast wind 2 to 8 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Clear | 2 to 8 mph SE | 3% |
| Wednesday | 71°F | Mostly Cloudy then Light Rain | 8 to 12 mph S | 82% |
| Wednesday Night | 57°F | Light Rain | 6 to 12 mph S | 99% |
| Thursday | 69°F | Mostly Sunny | 5 to 9 mph SW | 4% |
| Thursday Night | 46°F | Partly Cloudy | 3 mph SW | 1% |
| Friday | 64°F | Partly Sunny | 1 to 7 mph W | 11% |
| Friday Night | 42°F | Slight Chance Light Rain | 5 mph NW | 18% |
| Saturday | 56°F | Slight Chance Light Rain | 5 to 8 mph NW | 19% |
| Saturday Night | 35°F | Slight Chance Light Rain then Partly Cloudy | 1 to 5 mph W | 19% |
| Sunday | 57°F | Mostly Sunny | 2 to 8 mph SW | 13% |
| Sunday Night | 34°F | Slight Chance Light Rain | 6 mph W | 16% |
| Monday | 59°F | Chance Light Rain | 5 to 9 mph W | 26% |
| Monday Night | 36°F | Chance Light Rain then Partly Cloudy | 7 mph SW | 25% |
| Tuesday | 62°F | Mostly Sunny | 7 to 12 mph SW | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Old Washington, OH
Last spring frost
Apr 28
First fall frost
Oct 17
Growing season
172 days
Hardiness zone
6b
Explore more for Old Washington, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Cambridge, Oh (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.