Unionville, PA Weather & Growing Conditions
Overnight
50°F
Mostly Clear
Mostly clear, with a low around 50. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Mostly Clear | 0 mph | 0% |
| Wednesday | 76°F | Patchy Fog then Mostly Sunny | 0 to 8 mph S | 2% |
| Wednesday Night | 60°F | Light Rain | 7 mph S | 97% |
| Thursday | 73°F | Light Rain Likely | 3 to 8 mph SW | 70% |
| Thursday Night | 48°F | Mostly Cloudy | 0 to 3 mph SW | 5% |
| Friday | 67°F | Partly Sunny | 0 to 3 mph W | 11% |
| Friday Night | 44°F | Mostly Cloudy | 2 mph W | 10% |
| Saturday | 58°F | Chance Light Rain | 2 to 9 mph W | 31% |
| Saturday Night | 38°F | Slight Chance Light Rain | 9 mph W | 20% |
| Sunday | 57°F | Partly Sunny | 10 mph W | 6% |
| Sunday Night | 36°F | Partly Cloudy | 8 mph W | 6% |
| Monday | 58°F | Mostly Sunny | 7 to 12 mph W | 13% |
| Monday Night | 35°F | Partly Cloudy | 7 mph W | 10% |
| Tuesday | 61°F | Mostly Sunny | 6 to 10 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Unionville, PA
Last spring frost
Apr 20
First fall frost
Oct 26
Growing season
187 days
Hardiness zone
6b
Explore more for Unionville, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, State College, Pa (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.