Sinking Spring, PA Weather & Growing Conditions
Overnight
54°F
Mostly Clear
Mostly clear, with a low around 54. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Mostly Clear | 5 mph N | 0% |
| Saturday | 73°F | Mostly Sunny | 5 to 10 mph E | 2% |
| Saturday Night | 61°F | Chance Rain Showers | 5 to 10 mph SE | 49% |
| Sunday | 74°F | Rain Showers | 10 mph S | 91% |
| Sunday Night | 60°F | Showers And Thunderstorms | 5 to 10 mph NW | 91% |
| Monday | 68°F | Chance Rain Showers | 10 mph NE | 36% |
| Monday Night | 55°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Tuesday | 63°F | Chance Rain Showers | 15 mph NE | 44% |
| Tuesday Night | 50°F | Chance Rain Showers | 15 to 20 mph NE | 44% |
| Wednesday | 62°F | Chance Rain Showers | 15 to 20 mph NE | 39% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 15 mph NE | 42% |
| Thursday | 64°F | Chance Showers And Thunderstorms | 15 mph NE | 42% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 34% |
| Friday | 68°F | Chance Rain Showers | 10 mph N | 27% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sinking Spring, PA
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
176 days
Hardiness zone
7a
Explore more for Sinking Spring, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Blue Marsh Lake, Pa (4.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.