Unionville, PA Weather & Growing Conditions
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. East wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Tonight | 65°F | Mostly Cloudy | 0 mph | 11% |
| Wednesday | 82°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 79% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 5 mph S | 52% |
| Thursday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 27% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 38% |
| Friday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 45% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 45% |
| Saturday | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 40% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 40% |
| Sunday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 16% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 16% |
| Monday | 88°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph W | 17% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms | 5 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Unionville, PA
Last spring frost
Apr 19
First fall frost
Oct 26
Growing season
189 days
Hardiness zone
7a
Explore more for Unionville, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Avondale 2 N, Pa (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.