Coraopolis, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coraopolis, a borough in Allegheny County, Pennsylvania.
Tonight
54°F
Mostly Clear
Mostly clear, with a low around 54. Southeast wind 1 to 5 mph.
7-day forecast for Coraopolis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Clear | 1 to 5 mph SE | 2% |
| Wednesday | 76°F | Partly Sunny | 3 to 9 mph SE | 10% |
| Wednesday Night | 60°F | Light Rain | 7 to 10 mph S | 100% |
| Thursday | 69°F | Chance Light Rain then Mostly Sunny | 6 to 12 mph SW | 26% |
| Thursday Night | 48°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Friday | 64°F | Partly Sunny | 0 to 6 mph W | 11% |
| Friday Night | 45°F | Slight Chance Light Rain | 5 mph NW | 24% |
| Saturday | 55°F | Chance Light Rain | 5 to 9 mph W | 29% |
| Saturday Night | 39°F | Chance Light Rain then Mostly Cloudy | 2 to 7 mph W | 27% |
| Sunday | 54°F | Partly Sunny then Slight Chance Light Rain | 2 to 9 mph W | 16% |
| Sunday Night | 37°F | Slight Chance Light Rain | 7 mph W | 18% |
| Monday | 56°F | Chance Light Rain | 8 to 12 mph W | 26% |
| Monday Night | 38°F | Chance Light Rain then Partly Cloudy | 7 to 10 mph SW | 26% |
| Tuesday | 59°F | Mostly Sunny | 10 to 14 mph W | 9% |
Forecast source: National Weather Service (api.weather.gov) for Coraopolis (40.515, -80.162). Updated through the day.
Growing snapshot for Coraopolis
Last spring frost
Apr 23
First fall frost
Oct 23
Growing season
181 days
Hardiness zone
6b
More local growing data for Coraopolis: nearby ZIP 15108 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Pittsburgh Intl Ap, Pa (1.3 mi from Coraopolis). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.