Unionville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Unionville, a borough in Centre County, Pennsylvania.
Today
84°F
Patchy Fog then Sunny
Patchy fog before 10am. Sunny, with a high near 84. Southeast wind around 2 mph.
7-day forecast for Unionville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Patchy Fog then Sunny | 2 mph SE | 0% |
| Tonight | 63°F | Partly Cloudy | 2 mph E | 3% |
| Wednesday | 83°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SE | 45% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 0 to 3 mph SE | 38% |
| Thursday | 86°F | Showers And Thunderstorms | 0 to 3 mph SW | 85% |
| Thursday Night | 68°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 mph SW | 85% |
| Friday | 86°F | Showers And Thunderstorms | 0 to 3 mph W | 80% |
| Friday Night | 67°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 mph SW | 80% |
| Saturday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 6 mph W | 54% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 1 to 5 mph W | 54% |
| Sunday | 87°F | Mostly Sunny | 1 to 6 mph W | 13% |
| Sunday Night | 69°F | Partly Cloudy | 5 mph W | 13% |
| Monday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph W | 28% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 2 to 7 mph W | 28% |
Forecast source: National Weather Service (api.weather.gov) for Unionville (40.906, -77.877). Updated through the day.
Growing snapshot for Unionville
Last spring frost
Apr 20
First fall frost
Oct 26
Growing season
187 days
Hardiness zone
6b
More local growing data for Unionville: nearby ZIP 16835 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Aaronsburg
Baileyville
Beech Creek
Bellefonte
Blanchard
Boalsburg
Centre Hall
Clarence
Coburn
Continental Courts
Eagle Creek
Eagleville
Holters Crossing
Houserville
Howard
Hublersburg
Jacksonville
Julian
Lemont
Madisonburg
Milesburg
Millheim
Mingoville
Moose Run
Moshannon
Mount Eagle
Osceola Mills
Park Forest Village
Peru
Pine Glen
Climate data from the nearest NOAA station, State College, Pa (7.9 mi from Unionville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.