Sewickley Hills, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sewickley Hills, a borough in Allegheny County, Pennsylvania.
This Afternoon
78°F
Sunny
Sunny, with a high near 78. South wind around 2 mph.
7-day forecast for Sewickley Hills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 2 mph S | 1% |
| Tonight | 54°F | Mostly Clear | 2 to 6 mph SE | 2% |
| Wednesday | 76°F | Partly Sunny | 5 to 9 mph SE | 9% |
| Wednesday Night | 61°F | Light Rain | 10 mph S | 100% |
| Thursday | 69°F | Chance Light Rain then Mostly Sunny | 6 to 12 mph SW | 27% |
| Thursday Night | 48°F | Partly Cloudy | 1 to 5 mph SW | 3% |
| Friday | 64°F | Partly Sunny | 1 to 6 mph W | 11% |
| Friday Night | 45°F | Chance Light Rain | 6 mph NW | 26% |
| Saturday | 55°F | Chance Light Rain | 6 to 9 mph W | 30% |
| Saturday Night | 38°F | Chance Light Rain then Mostly Cloudy | 3 to 7 mph W | 27% |
| Sunday | 55°F | Partly Sunny then Slight Chance Light Rain | 3 to 9 mph W | 16% |
| Sunday Night | 38°F | Slight Chance Light Rain | 8 mph W | 19% |
| Monday | 56°F | Chance Light Rain | 8 to 12 mph W | 27% |
| Monday Night | 38°F | Chance Light Rain then Partly Cloudy | 7 to 10 mph SW | 27% |
Forecast source: National Weather Service (api.weather.gov) for Sewickley Hills (40.568, -80.127). Updated through the day.
Growing snapshot for Sewickley Hills
Last spring frost
Apr 8
First fall frost
Nov 8
Growing season
212 days
Hardiness zone
6b
More local growing data for Sewickley Hills: 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 Hills). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.