Exton, PA Weather & Growing Conditions
Tonight
49°F
Partly Cloudy then Patchy Fog
Patchy fog after 5am. Partly cloudy, with a low around 49. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Partly Cloudy then Patchy Fog | 5 mph S | 2% |
| Wednesday | 73°F | Patchy Fog then Sunny | 5 to 10 mph S | 3% |
| Wednesday Night | 58°F | Mostly Cloudy | 5 mph S | 9% |
| Thursday | 72°F | Light Rain Likely | 5 to 10 mph S | 58% |
| Thursday Night | 60°F | Light Rain Likely | 0 to 5 mph SW | 74% |
| Friday | 69°F | Light Rain Likely | 0 to 5 mph NW | 74% |
| Friday Night | 50°F | Light Rain Likely | 0 to 5 mph NW | 71% |
| Saturday | 64°F | Chance Light Rain | 5 to 10 mph NW | 25% |
| Saturday Night | 40°F | Slight Chance Light Rain then Partly Cloudy | 5 mph NW | 15% |
| Sunday | 60°F | Mostly Sunny | 5 mph W | 8% |
| Sunday Night | 39°F | Slight Chance Light Rain | 5 mph W | 20% |
| Monday | 59°F | Slight Chance Light Rain | 10 mph NW | 23% |
| Monday Night | 38°F | Slight Chance Light Rain | 5 to 10 mph W | 20% |
| Tuesday | 62°F | Sunny | 10 to 15 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Exton, PA
Last spring frost
Apr 26
First fall frost
Oct 18
Growing season
174 days
Hardiness zone
7a
Explore more for Exton, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, W Chester 2 Nw, Pa (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.