Rose Valley, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rose Valley, a borough in Delaware County, Pennsylvania.
Tonight
61°F
Partly Cloudy
Partly cloudy, with a low around 61. North wind 5 to 10 mph.
7-day forecast for Rose Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Saturday | 75°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Saturday Night | 64°F | Mostly Cloudy then Patchy Fog | 5 to 10 mph E | 14% |
| Sunday | 77°F | Showers And Thunderstorms | 5 to 10 mph SE | 78% |
| Sunday Night | 63°F | Showers And Thunderstorms | 5 to 10 mph W | 82% |
| Monday | 70°F | Chance Rain Showers | 10 mph NE | 46% |
| Monday Night | 60°F | Chance Rain Showers | 5 to 10 mph NE | 32% |
| Tuesday | 65°F | Chance Rain Showers | 10 mph NE | 34% |
| Tuesday Night | 56°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Wednesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Wednesday Night | 55°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 38% |
| Thursday | 64°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 36% |
| Thursday Night | 55°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 32% |
| Friday | 68°F | Slight Chance Rain Showers | 10 mph N | 23% |
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
Clifton Heights
Collingdale
Colwyn
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 Sep 19, 2026.