Unionville, PA Weather & Growing Conditions
Overnight
51°F
Patchy Fog
Patchy fog before 5am. Partly cloudy, with a low around 51. Northeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Patchy Fog | 2 mph NE | 0% |
| Saturday | 73°F | Partly Sunny | 3 mph E | 2% |
| Saturday Night | 60°F | Rain Showers | 2 to 6 mph SE | 85% |
| Sunday | 72°F | Rain Showers | 6 mph SW | 86% |
| Sunday Night | 51°F | Chance Showers And Thunderstorms then Mostly Cloudy | 7 mph N | 39% |
| Monday | 67°F | Mostly Cloudy | 7 mph NE | 5% |
| Monday Night | 48°F | Chance Rain Showers | 6 mph NE | 53% |
| Tuesday | 60°F | Rain Showers Likely | 6 mph E | 56% |
| Tuesday Night | 46°F | Chance Rain Showers | 8 mph E | 49% |
| Wednesday | 59°F | Chance Rain Showers | 8 mph E | 48% |
| Wednesday Night | 47°F | Chance Rain Showers | 7 mph E | 40% |
| Thursday | 62°F | Chance Rain Showers | 5 mph E | 45% |
| Thursday Night | 47°F | Chance Showers And Thunderstorms | 5 mph NE | 44% |
| Friday | 67°F | Chance Rain Showers | 6 mph N | 30% |
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 Sep 19, 2026.