Horsham, PA Weather & Growing Conditions
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. East wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Tonight | 65°F | Mostly Cloudy | 0 mph | 5% |
| Wednesday | 84°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph E | 47% |
| Wednesday Night | 71°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 74% |
| Thursday | 88°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph SW | 32% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 40% |
| Friday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 44% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 44% |
| Saturday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 10 mph W | 38% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 38% |
| Sunday | 87°F | Mostly Sunny | 0 to 5 mph W | 13% |
| Sunday Night | 71°F | Partly Cloudy | 0 to 5 mph W | 13% |
| Monday | 89°F | Mostly Sunny | 0 to 10 mph W | 10% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph W | 17% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Horsham, PA
Last spring frost
Apr 11
First fall frost
Nov 1
Growing season
205 days
Hardiness zone
7a
Explore more for Horsham, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Willow Grove Nas, Pa (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.