Rose Valley, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rose Valley, a borough in Delaware County, Pennsylvania.
Overnight
66°F
Mostly Cloudy
Mostly cloudy, with a low around 66. North wind around 5 mph.
7-day forecast for Rose Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Mostly Cloudy | 5 mph N | 0% |
| Tuesday | 86°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Tuesday Night | 68°F | Mostly Cloudy | 0 to 5 mph E | 7% |
| Wednesday | 85°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 73% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms | 5 mph S | 62% |
| Thursday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 21% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 27% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 37% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 43% |
| Saturday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 36% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 36% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 16% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 16% |
| Monday | 91°F | Sunny | 5 to 10 mph W | 10% |
Forecast source: National Weather Service (api.weather.gov) for Rose Valley (39.895, -75.385). Updated through the day.
Growing snapshot for Rose Valley
Last spring frost
Mar 30
First fall frost
Nov 16
Growing season
230 days
Hardiness zone
7b
More local growing data for Rose Valley: nearby ZIP 19086 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Aldan
Ardmore
Boothwyn
Brookhaven
Broomall
Bryn Mawr
Chester
Chester Heights
Cheyney University
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Collingdale
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Darby
Dilworthtown
Drexel Hill
East Lansdowne
Eddystone
Folcroft
Folsom
Glenolden
Haverford College
Lansdowne
Lima
Linwood
Marcus Hook
Media
Morton
Norwood
Parkside
Prospect Park
Climate data from the nearest NOAA station, Marcus Hook, Pa (5.5 mi from Rose Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.