Unionville, PA Weather & Growing Conditions
This Afternoon
77°F
Slight Chance Rain Showers
A slight chance of rain showers before 2pm. Mostly cloudy, with a high near 77. Southeast wind around 3 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Slight Chance Rain Showers | 3 mph SE | 17% |
| Tonight | 63°F | Showers And Thunderstorms | 5 mph SE | 77% |
| Sunday | 76°F | Showers And Thunderstorms | 7 mph SW | 98% |
| Sunday Night | 53°F | Chance Showers And Thunderstorms | 8 mph N | 39% |
| Monday | 67°F | Chance Rain Showers | 9 mph NE | 29% |
| Monday Night | 52°F | Chance Rain Showers | 8 to 12 mph NE | 49% |
| Tuesday | 62°F | Chance Rain Showers | 10 to 14 mph E | 54% |
| Tuesday Night | 50°F | Rain Showers Likely | 16 mph E | 73% |
| Wednesday | 62°F | Showers And Thunderstorms Likely | 15 mph E | 73% |
| Wednesday Night | 50°F | Rain Showers Likely | 10 to 15 mph E | 55% |
| Thursday | 65°F | Rain Showers Likely | 8 to 12 mph E | 55% |
| Thursday Night | 50°F | Slight Chance Rain Showers | 5 to 8 mph E | 15% |
| Friday | 69°F | Partly Sunny | 7 mph NE | 14% |
| Friday Night | 49°F | Partly Cloudy | 7 mph NE | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Unionville, PA
Last spring frost
Apr 27
First fall frost
Oct 25
Growing season
178 days
Hardiness zone
6b
Explore more for Unionville, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Beaver Falls 1 Ne, Pa (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.