Mount Oliver, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Oliver, a borough in Allegheny County, Pennsylvania.
Today
86°F
Sunny
Sunny, with a high near 86. East wind 2 to 6 mph.
7-day forecast for Mount Oliver
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 2 to 6 mph E | 0% |
| Tonight | 68°F | Mostly Clear | 3 to 7 mph SE | 1% |
| Wednesday | 87°F | Partly Sunny then Scattered Showers And Thunderstorms | 2 to 7 mph SE | 27% |
| Wednesday Night | 69°F | Scattered Showers And Thunderstorms | 6 mph S | 50% |
| Thursday | 86°F | Showers And Thunderstorms Likely | 5 to 9 mph SW | 71% |
| Thursday Night | 69°F | Showers And Thunderstorms Likely | 5 to 8 mph SW | 71% |
| Friday | 84°F | Showers And Thunderstorms | 5 to 8 mph SW | 82% |
| Friday Night | 68°F | Showers And Thunderstorms | 5 to 8 mph SW | 82% |
| Saturday | 84°F | Chance Showers And Thunderstorms | 6 to 9 mph SW | 54% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 54% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 20% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 9 mph SW | 23% |
| Monday | 87°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 8 to 13 mph SW | 36% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 7 to 10 mph SW | 49% |
Forecast source: National Weather Service (api.weather.gov) for Mount Oliver (40.411, -79.986). Updated through the day.
Growing snapshot for Mount Oliver
Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6b
More local growing data for Mount Oliver: nearby ZIP 15210 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Pittsburgh Allegheny Co Ap, Pa (4.9 mi from Mount Oliver). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.