Old Washington, OH Weather & Growing Conditions
Today
86°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 86. East wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Patchy Fog then Sunny | 2 mph E | 0% |
| Tonight | 66°F | Mostly Clear then Patchy Fog | 1 mph E | 1% |
| Wednesday | 87°F | Patchy Fog then Scattered Showers And Thunderstorms | 1 to 5 mph S | 50% |
| Wednesday Night | 67°F | Scattered Showers And Thunderstorms | 2 mph S | 50% |
| Thursday | 85°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 59% |
| Thursday Night | 67°F | Showers And Thunderstorms Likely | 5 mph S | 59% |
| Friday | 83°F | Showers And Thunderstorms | 2 to 7 mph SW | 80% |
| Friday Night | 66°F | Showers And Thunderstorms | 5 mph SW | 80% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 6 mph SW | 51% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 51% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph SW | 18% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 28% |
| Monday | 87°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 33% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 6 mph SW | 43% |
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 (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.