Radnor, OH Weather & Growing Conditions
Overnight
57°F
Mostly Cloudy
Mostly cloudy, with a low around 57. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Mostly Cloudy | 5 mph NE | 1% |
| Saturday | 80°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 3 to 7 mph SE | 38% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 7 mph S | 52% |
| Sunday | 79°F | Showers And Thunderstorms Likely | 5 to 13 mph W | 70% |
| Sunday Night | 55°F | Showers And Thunderstorms Likely | 10 to 14 mph NE | 65% |
| Monday | 68°F | Chance Rain Showers | 14 mph NE | 45% |
| Monday Night | 52°F | Chance Rain Showers | 12 to 15 mph NE | 44% |
| Tuesday | 68°F | Slight Chance Rain Showers | 14 mph NE | 23% |
| Tuesday Night | 54°F | Rain Showers Likely | 14 mph NE | 62% |
| Wednesday | 67°F | Rain Showers Likely | 14 mph E | 62% |
| Wednesday Night | 53°F | Rain Showers Likely | 9 to 13 mph E | 62% |
| Thursday | 69°F | Slight Chance Rain Showers | 10 mph NE | 17% |
| Thursday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 10 mph NE | 15% |
| Friday | 70°F | Mostly Sunny then Slight Chance Rain Showers | 7 to 13 mph NE | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Radnor, OH
Last spring frost
Apr 25
First fall frost
Oct 20
Growing season
178 days
Hardiness zone
6b
Explore more for Radnor, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Marion 2 N, Oh (14.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.