Coatesville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coatesville, a city in Chester County, Pennsylvania.
Overnight
56°F
Partly Cloudy
Partly cloudy, with a low around 56. Northeast wind around 5 mph.
7-day forecast for Coatesville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Partly Cloudy | 5 mph NE | 0% |
| Saturday | 73°F | Mostly Sunny | 5 mph NE | 2% |
| Saturday Night | 61°F | Mostly Cloudy then Patchy Fog | 5 mph SE | 27% |
| Sunday | 75°F | Showers And Thunderstorms | 5 to 10 mph S | 82% |
| Sunday Night | 60°F | Showers And Thunderstorms | 5 to 10 mph W | 83% |
| Monday | 68°F | Chance Rain Showers | 5 to 10 mph NE | 40% |
| Monday Night | 55°F | Chance Rain Showers | 5 to 10 mph NE | 33% |
| Tuesday | 62°F | Chance Rain Showers | 10 mph NE | 41% |
| Tuesday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 41% |
| Wednesday | 60°F | Chance Rain Showers | 10 to 15 mph NE | 40% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 40% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 39% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 33% |
| Friday | 66°F | Chance Rain Showers | 10 mph N | 29% |
Forecast source: National Weather Service (api.weather.gov) for Coatesville (39.985, -75.819). Updated through the day.
Growing snapshot for Coatesville
Last spring frost
Apr 19
First fall frost
Oct 25
Growing season
190 days
Hardiness zone
7a
More local growing data for Coatesville: nearby ZIP 19358 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Coatesville 2 W, Pa (3.1 mi from Coatesville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.