McKees Rocks, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McKees Rocks, a borough in Allegheny County, Pennsylvania.
Tonight
59°F
Partly Cloudy
Partly cloudy, with a low around 59. Northeast wind around 6 mph.
7-day forecast for McKees Rocks
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Partly Cloudy | 6 mph NE | 10% |
| Saturday | 80°F | Partly Sunny | 5 mph E | 6% |
| Saturday Night | 66°F | Mostly Cloudy then Showers And Thunderstorms Likely | 5 mph SE | 60% |
| Sunday | 79°F | Showers And Thunderstorms | 8 mph SW | 95% |
| Sunday Night | 60°F | Showers And Thunderstorms | 8 mph N | 95% |
| Monday | 70°F | Chance Rain Showers | 10 mph NE | 39% |
| Monday Night | 59°F | Showers And Thunderstorms Likely | 12 mph E | 61% |
| Tuesday | 67°F | Showers And Thunderstorms Likely | 13 mph E | 69% |
| Tuesday Night | 56°F | Showers And Thunderstorms Likely | 12 to 15 mph E | 69% |
| Wednesday | 65°F | Showers And Thunderstorms Likely | 14 mph E | 65% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 8 to 13 mph E | 52% |
| Thursday | 66°F | Chance Rain Showers | 9 mph E | 40% |
| Thursday Night | 54°F | Slight Chance Rain Showers | 3 to 8 mph NE | 19% |
| Friday | 71°F | Partly Sunny | 5 to 8 mph N | 14% |
Forecast source: National Weather Service (api.weather.gov) for McKees Rocks (40.469, -80.063). Updated through the day.
Growing snapshot for McKees Rocks
Last spring frost
Apr 24
First fall frost
Oct 27
Growing season
186 days
Hardiness zone
7a
More local growing data for McKees Rocks: nearby ZIP 15204 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Emsworth L/D Ohio Rvr, Pa (3.6 mi from McKees Rocks). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.