Sewickley Heights, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sewickley Heights, a borough in Allegheny County, Pennsylvania.
This Afternoon
75°F
Mostly Sunny
Mostly sunny, with a high near 75. North wind around 7 mph.
7-day forecast for Sewickley Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Sunny | 7 mph N | 10% |
| Tonight | 58°F | Partly Cloudy | 7 mph NE | 10% |
| Saturday | 78°F | Partly Sunny | 6 mph E | 7% |
| Saturday Night | 65°F | Mostly Cloudy then Showers And Thunderstorms Likely | 6 mph SE | 63% |
| Sunday | 76°F | Showers And Thunderstorms | 7 mph SW | 95% |
| Sunday Night | 59°F | Showers And Thunderstorms | 9 mph N | 95% |
| Monday | 67°F | Chance Rain Showers | 10 mph NE | 37% |
| Monday Night | 58°F | Showers And Thunderstorms Likely | 12 mph E | 58% |
| Tuesday | 64°F | Showers And Thunderstorms Likely | 13 mph E | 67% |
| Tuesday Night | 55°F | Showers And Thunderstorms Likely | 15 mph E | 67% |
| Wednesday | 63°F | Showers And Thunderstorms Likely | 13 mph E | 65% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 9 to 13 mph E | 51% |
| Thursday | 64°F | Chance Rain Showers | 9 mph E | 41% |
| Thursday Night | 53°F | Slight Chance Rain Showers | 7 mph NE | 18% |
Forecast source: National Weather Service (api.weather.gov) for Sewickley Heights (40.560, -80.153). Updated through the day.
Growing snapshot for Sewickley Heights
Last spring frost
Apr 8
First fall frost
Nov 8
Growing season
212 days
Hardiness zone
6b
More local growing data for Sewickley Heights: nearby ZIP 15143 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Glenwillard Dashields L&D, Pa (3.4 mi from Sewickley Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.