Union City, PA Weather & Growing Conditions
Today
82°F
Patchy Fog then Sunny
Patchy fog before 8am. Sunny, with a high near 82. South wind 0 to 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Patchy Fog then Sunny | 0 to 3 mph S | 0% |
| Tonight | 60°F | Mostly Clear | 3 mph SE | 0% |
| Wednesday | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph S | 51% |
| Wednesday Night | 64°F | Chance Showers And Thunderstorms | 1 to 5 mph S | 48% |
| Thursday | 84°F | Showers And Thunderstorms Likely | 3 to 7 mph SW | 63% |
| Thursday Night | 64°F | Showers And Thunderstorms Likely | 1 to 5 mph SW | 63% |
| Friday | 81°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 6 mph SW | 74% |
| Friday Night | 62°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 1 to 5 mph SW | 74% |
| Saturday | 82°F | Chance Showers And Thunderstorms | 2 to 7 mph SW | 47% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 47% |
| Sunday | 85°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 9 mph SW | 23% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 8 mph SW | 44% |
| Monday | 83°F | Chance Rain Showers | 6 to 10 mph SW | 49% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 2 to 8 mph SW | 51% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Union City, PA
Last spring frost
May 7
First fall frost
Oct 10
Growing season
155 days
Hardiness zone
6a
Explore more for Union City, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Union City Filtration Plant, Pa (0.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.