Bethel Park, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bethel Park, a municipality in Allegheny County, Pennsylvania.
This Afternoon
78°F
Slight Chance Rain Showers
A slight chance of rain showers before 2pm. Partly sunny, with a high near 78. Southeast wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Bethel Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Slight Chance Rain Showers | 5 mph SE | 15% |
| Tonight | 65°F | Showers And Thunderstorms | 5 to 8 mph S | 76% |
| Sunday | 77°F | Showers And Thunderstorms | 8 to 12 mph SW | 98% |
| Sunday Night | 56°F | Chance Showers And Thunderstorms | 8 to 12 mph N | 50% |
| Monday | 67°F | Chance Rain Showers | 13 mph NE | 40% |
| Monday Night | 55°F | Rain Showers Likely | 13 mph NE | 63% |
| Tuesday | 63°F | Rain Showers Likely | 13 to 16 mph E | 67% |
| Tuesday Night | 52°F | Rain Showers | 16 mph E | 77% |
| Wednesday | 62°F | Rain Showers Likely | 16 mph E | 73% |
| Wednesday Night | 52°F | Rain Showers Likely | 12 to 16 mph E | 56% |
| Thursday | 65°F | Rain Showers Likely | 13 mph E | 56% |
| Thursday Night | 51°F | Slight Chance Rain Showers | 6 to 10 mph NE | 17% |
| Friday | 68°F | Slight Chance Rain Showers | 7 to 10 mph NE | 15% |
| Friday Night | 50°F | Partly Cloudy | 6 to 9 mph N | 12% |
Forecast source: National Weather Service (api.weather.gov) for Bethel Park (40.324, -80.036). Updated through the day.
Growing snapshot for Bethel Park
Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6b
More local growing data for Bethel Park: nearby ZIP 15102 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Pittsburgh Allegheny Co Ap, Pa (6.5 mi from Bethel Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.