South Coatesville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Coatesville, a borough in Chester County, Pennsylvania.
Today
75°F
Mostly Sunny
Mostly sunny, with a high near 75. East wind around 5 mph.
7-day forecast for South Coatesville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Mostly Sunny | 5 mph E | 2% |
| Tonight | 59°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 16% |
| Sunday | 75°F | Chance Rain Showers | 5 to 10 mph S | 50% |
| Sunday Night | 56°F | Showers And Thunderstorms | 5 to 10 mph NW | 78% |
| Monday | 68°F | Chance Rain Showers | 5 to 10 mph NE | 28% |
| Monday Night | 50°F | Chance Rain Showers | 5 to 10 mph NE | 39% |
| Tuesday | 61°F | Chance Rain Showers | 10 mph NE | 44% |
| Tuesday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 41% |
| Wednesday | 61°F | Chance Rain Showers | 15 mph NE | 35% |
| Wednesday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Thursday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Thursday Night | 49°F | Chance Rain Showers | 5 to 10 mph NE | 30% |
| Friday | 64°F | Slight Chance Rain Showers | 10 mph N | 23% |
| Friday Night | 49°F | Slight Chance Rain Showers | 5 to 10 mph N | 23% |
Forecast source: National Weather Service (api.weather.gov) for South Coatesville (39.972, -75.812). Updated through the day.
Growing snapshot for South Coatesville
Last spring frost
Apr 19
First fall frost
Oct 25
Growing season
190 days
Hardiness zone
7a
More local growing data for South 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 South Coatesville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.