Blaine Hill, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blaine Hill, a community in Allegheny County, Pennsylvania.
This Afternoon
79°F
Slight Chance Rain Showers
A slight chance of rain showers between 1pm and 2pm. Partly sunny, with a high near 79. Southeast wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Blaine Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Slight Chance Rain Showers | 5 mph SE | 15% |
| Tonight | 64°F | Showers And Thunderstorms | 5 to 8 mph S | 81% |
| Sunday | 78°F | Showers And Thunderstorms | 7 to 12 mph SW | 98% |
| Sunday Night | 56°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 mph N | 56% |
| Monday | 68°F | Chance Rain Showers | 13 mph NE | 42% |
| Monday Night | 54°F | Showers And Thunderstorms Likely | 12 mph NE | 65% |
| Tuesday | 64°F | Rain Showers Likely | 12 to 16 mph E | 69% |
| Tuesday Night | 51°F | Showers And Thunderstorms | 16 mph E | 76% |
| Wednesday | 62°F | Rain Showers Likely | 16 mph E | 71% |
| Wednesday Night | 51°F | Chance Rain Showers | 10 to 16 mph E | 52% |
| Thursday | 66°F | Chance Rain Showers | 12 mph E | 52% |
| Thursday Night | 50°F | Slight Chance Rain Showers | 5 to 10 mph NE | 18% |
| Friday | 68°F | Slight Chance Rain Showers | 6 to 10 mph NE | 15% |
| Friday Night | 49°F | Partly Cloudy | 5 to 9 mph N | 12% |
Forecast source: National Weather Service (api.weather.gov) for Blaine Hill (40.274, -79.874). Updated through the day.
Growing snapshot for Blaine Hill
Last spring frost
May 2
First fall frost
Oct 20
Growing season
170 days
Hardiness zone
6b
More local growing data for Blaine Hill: nearby ZIP 15088 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Mckeesport, Pa (5.1 mi from Blaine Hill). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.