Port Washington, OH Weather & Growing Conditions
Today
71°F
Light Rain
Rain. Cloudy. High near 71, with temperatures falling to around 64 in the afternoon. South wind 6 to 12 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Light Rain | 6 to 12 mph S | 93% |
| Tonight | 56°F | Light Rain | 6 to 13 mph SW | 92% |
| Thursday | 66°F | Partly Sunny | 6 to 12 mph SW | 10% |
| Thursday Night | 46°F | Partly Cloudy | 5 mph SW | 0% |
| Friday | 60°F | Chance Light Rain | 2 to 7 mph W | 27% |
| Friday Night | 40°F | Chance Light Rain | 7 mph W | 27% |
| Saturday | 52°F | Chance Light Rain | 9 mph W | 25% |
| Saturday Night | 35°F | Chance Light Rain then Mostly Cloudy | 2 to 6 mph W | 25% |
| Sunday | 55°F | Mostly Sunny | 3 to 9 mph W | 3% |
| Sunday Night | 34°F | Mostly Clear | 3 to 7 mph W | 4% |
| Monday | 57°F | Sunny | 3 to 8 mph W | 7% |
| Monday Night | 36°F | Mostly Clear | 6 mph SW | 7% |
| Tuesday | 61°F | Sunny | 6 to 10 mph SW | 3% |
| Tuesday Night | 35°F | Partly Cloudy | 1 to 5 mph W | 0% |
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 Nov 4, 2026.