Darby, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Darby, a borough in Delaware County, Pennsylvania.
Tonight
52°F
Partly Cloudy
Partly cloudy, with a low around 52. South wind 0 to 5 mph.
7-day forecast for Darby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Partly Cloudy | 0 to 5 mph S | 2% |
| Wednesday | 75°F | Patchy Fog then Sunny | 0 to 10 mph S | 3% |
| Wednesday Night | 60°F | Mostly Cloudy | 5 mph S | 5% |
| Thursday | 74°F | Chance Light Rain | 5 to 10 mph S | 37% |
| Thursday Night | 63°F | Light Rain | 5 mph S | 83% |
| Friday | 70°F | Light Rain | 0 to 5 mph W | 83% |
| Friday Night | 55°F | Light Rain | 0 to 5 mph NW | 79% |
| Saturday | 66°F | Chance Light Rain | 5 to 10 mph NW | 37% |
| Saturday Night | 45°F | Slight Chance Light Rain then Partly Cloudy | 5 mph NW | 15% |
| Sunday | 61°F | Mostly Sunny | 5 mph NW | 7% |
| Sunday Night | 43°F | Partly Cloudy then Slight Chance Light Rain | 5 mph W | 18% |
| Monday | 61°F | Slight Chance Light Rain | 10 mph NW | 22% |
| Monday Night | 42°F | Slight Chance Light Rain | 5 to 10 mph W | 22% |
| Tuesday | 63°F | Sunny | 10 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov) for Darby (39.921, -75.261). Updated through the day.
Growing snapshot for Darby
Last spring frost
Apr 2
First fall frost
Nov 10
Growing season
224 days
Hardiness zone
7b
More local growing data for Darby: nearby ZIP 19023 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
Dilworthtown
Drexel Hill
East Lansdowne
Eddystone
Folcroft
Folsom
Glenolden
Haverford College
Lansdowne
Lima
Linwood
Marcus Hook
Media
Morton
Norwood
Parkside
Prospect Park
Ridley Park
Climate data from the nearest NOAA station, Philadelphia Intl Ap, Pa (3.9 mi from Darby). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.