Sinking Spring, PA Weather & Growing Conditions
Overnight
50°F
Mostly Clear
Mostly clear, with a low around 50. Southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Mostly Clear | 0 to 5 mph SE | 2% |
| Wednesday | 75°F | Patchy Fog then Mostly Sunny | 0 to 10 mph S | 4% |
| Wednesday Night | 60°F | Mostly Cloudy then Chance Light Rain | 5 to 10 mph S | 26% |
| Thursday | 73°F | Light Rain | 5 to 10 mph S | 76% |
| Thursday Night | 60°F | Light Rain Likely | 0 to 5 mph SW | 63% |
| Friday | 70°F | Light Rain Likely | 0 to 5 mph NW | 63% |
| Friday Night | 49°F | Chance Light Rain | 0 to 5 mph NW | 54% |
| Saturday | 65°F | Slight Chance Light Rain | 5 to 10 mph NW | 17% |
| Saturday Night | 40°F | Partly Cloudy | 5 to 10 mph NW | 13% |
| Sunday | 61°F | Mostly Sunny | 5 to 10 mph W | 9% |
| Sunday Night | 38°F | Slight Chance Light Rain | 5 to 10 mph W | 21% |
| Monday | 60°F | Slight Chance Light Rain | 10 to 15 mph NW | 23% |
| Monday Night | 36°F | Slight Chance Light Rain | 5 to 15 mph W | 21% |
| Tuesday | 63°F | Slight Chance Light Rain then Sunny | 10 to 15 mph W | 15% |
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 Nov 4, 2026.