Unionville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Unionville, a community in Beaver County, Pennsylvania.
This Afternoon
77°F
Sunny
Sunny, with a high near 77. South wind 1 to 6 mph.
7-day forecast for Unionville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Sunny | 1 to 6 mph S | 1% |
| Tonight | 54°F | Mostly Clear | 5 mph SE | 2% |
| Wednesday | 76°F | Partly Sunny | 5 to 9 mph S | 14% |
| Wednesday Night | 60°F | Light Rain | 7 to 10 mph S | 100% |
| Thursday | 69°F | Slight Chance Light Rain then Mostly Sunny | 6 to 12 mph SW | 22% |
| Thursday Night | 46°F | Partly Cloudy | 0 to 5 mph SW | 2% |
| Friday | 64°F | Partly Sunny | 0 to 6 mph W | 12% |
| Friday Night | 43°F | Chance Light Rain | 5 mph NW | 29% |
| Saturday | 54°F | Chance Light Rain | 6 to 9 mph W | 30% |
| Saturday Night | 37°F | Chance Light Rain then Mostly Cloudy | 3 to 7 mph W | 29% |
| Sunday | 55°F | Partly Sunny then Slight Chance Light Rain | 3 to 9 mph W | 16% |
| Sunday Night | 35°F | Slight Chance Light Rain | 8 mph W | 19% |
| Monday | 56°F | Chance Light Rain | 8 to 12 mph W | 29% |
| Monday Night | 36°F | Chance Light Rain then Partly Cloudy | 7 to 10 mph SW | 29% |
Forecast source: National Weather Service (api.weather.gov) for Unionville (40.746, -80.211). Updated through the day.
Growing snapshot for Unionville
Last spring frost
Apr 27
First fall frost
Oct 25
Growing season
178 days
Hardiness zone
6b
More local growing data for Unionville: nearby ZIP 15074 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Beaver Falls 1 Ne, Pa (5.9 mi from Unionville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.