Lansdowne, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lansdowne, a borough in Delaware County, Pennsylvania.
Tonight
51°F
Partly Cloudy
Partly cloudy, with a low around 51. South wind around 5 mph.
7-day forecast for Lansdowne
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Partly Cloudy | 5 mph S | 2% |
| Wednesday | 75°F | Patchy Fog then Sunny | 5 to 10 mph S | 3% |
| Wednesday Night | 59°F | Mostly Cloudy | 5 mph S | 5% |
| Thursday | 74°F | Chance Light Rain | 5 to 10 mph S | 39% |
| Thursday Night | 63°F | Light Rain | 5 mph S | 82% |
| Friday | 69°F | Light Rain | 5 mph W | 82% |
| Friday Night | 54°F | Light Rain | 5 mph NW | 78% |
| Saturday | 65°F | Chance Light Rain | 5 to 10 mph NW | 36% |
| Saturday Night | 44°F | Slight Chance Light Rain then Partly Cloudy | 5 mph NW | 15% |
| Sunday | 60°F | Mostly Sunny | 5 to 10 mph W | 7% |
| Sunday Night | 42°F | Partly Cloudy then Slight Chance Light Rain | 5 mph W | 18% |
| Monday | 60°F | Slight Chance Light Rain | 10 to 15 mph NW | 22% |
| Monday Night | 41°F | Slight Chance Light Rain | 5 to 10 mph W | 22% |
| Tuesday | 63°F | Sunny | 10 to 15 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov) for Lansdowne (39.941, -75.276). Updated through the day.
Growing snapshot for Lansdowne
Last spring frost
Mar 30
First fall frost
Nov 17
Growing season
232 days
Hardiness zone
7b
More local growing data for Lansdowne: nearby ZIP 19050 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
Lima
Linwood
Marcus Hook
Media
Morton
Norwood
Parkside
Prospect Park
Ridley Park
Climate data from the nearest NOAA station, Phila Franklin Inst, Pa (5 mi from Lansdowne). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.