Unionville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Unionville, a borough in Centre County, Pennsylvania.
This Afternoon
79°F
Mostly Sunny
Mostly sunny, with a high near 79. North wind around 5 mph.
7-day forecast for Unionville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Mostly Sunny | 5 mph N | 0% |
| Tonight | 51°F | Partly Cloudy then Patchy Fog | 3 mph NE | 0% |
| Saturday | 73°F | Patchy Fog then Partly Sunny | 3 mph E | 4% |
| Saturday Night | 61°F | Mostly Cloudy then Rain Showers | 5 mph SE | 76% |
| Sunday | 73°F | Showers And Thunderstorms | 5 mph SW | 98% |
| Sunday Night | 55°F | Showers And Thunderstorms | 6 mph N | 89% |
| Monday | 68°F | Chance Rain Showers | 6 mph NE | 27% |
| Monday Night | 53°F | Rain Showers Likely | 7 mph NE | 59% |
| Tuesday | 61°F | Rain Showers Likely | 7 mph E | 67% |
| Tuesday Night | 49°F | Rain Showers Likely | 8 mph E | 62% |
| Wednesday | 59°F | Chance Rain Showers | 7 mph E | 54% |
| Wednesday Night | 48°F | Chance Showers And Thunderstorms | 6 mph E | 51% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 5 mph E | 49% |
| Thursday Night | 50°F | Chance Rain Showers | 1 to 5 mph NE | 36% |
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 Sep 19, 2026.