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
80°F
Light Rain
Rain. Mostly cloudy, with a high near 80. South wind 9 to 16 mph. Chance of precipitation is 80%.
7-day forecast for Blaine Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Light Rain | 9 to 16 mph S | 75% |
| Tonight | 61°F | Light Rain | 9 to 16 mph S | 95% |
| Thursday | 70°F | Chance Light Rain then Partly Sunny | 9 to 15 mph SW | 33% |
| Thursday Night | 48°F | Partly Cloudy | 7 mph SW | 0% |
| Friday | 63°F | Slight Chance Light Rain | 5 to 12 mph W | 21% |
| Friday Night | 39°F | Chance Light Rain | 5 to 9 mph W | 25% |
| Saturday | 52°F | Mostly Cloudy then Slight Chance Light Rain | 9 to 15 mph W | 24% |
| Saturday Night | 35°F | Slight Chance Light Rain then Mostly Cloudy | 8 to 13 mph W | 24% |
| Sunday | 56°F | Partly Sunny | 8 to 15 mph W | 2% |
| Sunday Night | 33°F | Mostly Clear | 9 to 13 mph W | 1% |
| Monday | 58°F | Mostly Sunny | 9 to 16 mph W | 2% |
| Monday Night | 35°F | Mostly Clear | 8 to 12 mph SW | 2% |
| Tuesday | 63°F | Sunny | 12 to 16 mph SW | 0% |
| Tuesday Night | 35°F | Mostly Clear | 3 to 9 mph SW | 1% |
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 Nov 5, 2026.