Jefferson Hills, PA Weather & Growing Conditions
Today
86°F
Sunny
Sunny, with a high near 86. East wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 1 to 5 mph E | 0% |
| Tonight | 67°F | Partly Cloudy | 5 mph SE | 1% |
| Wednesday | 87°F | Mostly Sunny then Isolated Showers And Thunderstorms | 1 to 6 mph S | 20% |
| Wednesday Night | 69°F | Scattered Showers And Thunderstorms | 2 to 6 mph S | 50% |
| Thursday | 86°F | Showers And Thunderstorms Likely | 3 to 9 mph SW | 73% |
| Thursday Night | 68°F | Showers And Thunderstorms Likely | 2 to 7 mph SW | 73% |
| Friday | 85°F | Showers And Thunderstorms | 3 to 9 mph SW | 83% |
| Friday Night | 67°F | Showers And Thunderstorms | 3 to 7 mph SW | 83% |
| Saturday | 84°F | Showers And Thunderstorms Likely | 5 to 9 mph SW | 57% |
| Saturday Night | 67°F | Showers And Thunderstorms Likely | 3 to 8 mph SW | 57% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 22% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph SW | 23% |
| Monday | 87°F | Chance Showers And Thunderstorms | 8 to 13 mph SW | 37% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 6 to 10 mph SW | 49% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jefferson Hills, PA
Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6b
Explore more for Jefferson Hills, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Pittsburgh Allegheny Co Ap, Pa (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.