Port Washington, OH Weather & Growing Conditions
Tonight
58°F
Mostly Clear
Mostly clear, with a low around 58. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Clear | 5 mph NE | 9% |
| Saturday | 80°F | Slight Chance Rain Showers | 2 mph E | 21% |
| Saturday Night | 66°F | Patchy Fog then Showers And Thunderstorms Likely | 1 to 5 mph S | 56% |
| Sunday | 79°F | Showers And Thunderstorms | 6 mph SW | 92% |
| Sunday Night | 60°F | Showers And Thunderstorms | 8 mph N | 92% |
| Monday | 70°F | Chance Rain Showers | 8 mph NE | 47% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 9 mph NE | 51% |
| Tuesday | 69°F | Chance Showers And Thunderstorms | 9 mph NE | 52% |
| Tuesday Night | 57°F | Showers And Thunderstorms Likely | 13 mph E | 67% |
| Wednesday | 66°F | Showers And Thunderstorms Likely | 12 mph E | 67% |
| Wednesday Night | 55°F | Showers And Thunderstorms Likely | 10 mph E | 63% |
| Thursday | 67°F | Chance Rain Showers | 8 mph NE | 39% |
| Thursday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 6 mph NE | 20% |
| Friday | 69°F | Partly Sunny then Slight Chance Rain Showers | 7 mph N | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Washington, OH
Last spring frost
Apr 29
First fall frost
Oct 15
Growing season
170 days
Hardiness zone
6b
Explore more for Port Washington, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Dennison Wtr Wks, Oh (10.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.