Harman US

Malvern, PA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Malvern, a borough in Chester County, Pennsylvania.

Tonight
57°F
Partly Cloudy
Partly cloudy, with a low around 57. North wind around 5 mph.

7-day forecast for Malvern

WhenTempForecastWindPrecip
Tonight 57°F Partly Cloudy 5 mph N 0%
Saturday 74°F Mostly Sunny 5 mph NE 2%
Saturday Night 62°F Patchy Fog 5 mph SE 23%
Sunday 75°F Showers And Thunderstorms 5 to 10 mph S 82%
Sunday Night 61°F Showers And Thunderstorms 5 to 10 mph W 83%
Monday 68°F Chance Rain Showers 10 mph NE 41%
Monday Night 56°F Chance Rain Showers 5 to 10 mph NE 32%
Tuesday 63°F Chance Rain Showers 10 mph NE 37%
Tuesday Night 52°F Chance Rain Showers 10 to 15 mph NE 37%
Wednesday 61°F Chance Rain Showers 10 to 15 mph NE 36%
Wednesday Night 52°F Chance Showers And Thunderstorms 10 to 15 mph NE 39%
Thursday 62°F Chance Showers And Thunderstorms 10 to 15 mph NE 37%
Thursday Night 52°F Chance Showers And Thunderstorms 5 to 10 mph NE 32%
Friday 67°F Chance Rain Showers 10 mph N 25%

Forecast source: National Weather Service (api.weather.gov) for Malvern (40.033, -75.515). Updated through the day.

Growing snapshot for Malvern

Last spring frost
Apr 18
First fall frost
Oct 27
Growing season
192 days
Hardiness zone
7a

More local growing data for Malvern: nearby ZIP 19355 weather · frost dates · planting calendar · Pennsylvania frost dates

Nearby towns & communities

All Pennsylvania locations ›

Climate data from the nearest NOAA station, Phoenixville 1 E, Pa (5.5 mi from Malvern). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.