Mount Oliver, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Oliver, a borough in Allegheny County, Pennsylvania.
This Afternoon
78°F
Sunny
Sunny, with a high near 78. South wind around 3 mph.
7-day forecast for Mount Oliver
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 3 mph S | 1% |
| Tonight | 54°F | Mostly Clear | 3 to 7 mph SE | 2% |
| Wednesday | 77°F | Partly Sunny | 5 to 10 mph SE | 7% |
| Wednesday Night | 61°F | Light Rain | 13 mph S | 99% |
| Thursday | 70°F | Chance Light Rain | 8 to 14 mph SW | 28% |
| Thursday Night | 49°F | Partly Cloudy | 2 to 7 mph SW | 3% |
| Friday | 65°F | Partly Sunny | 2 to 7 mph W | 10% |
| Friday Night | 46°F | Slight Chance Light Rain | 3 to 7 mph NW | 24% |
| Saturday | 55°F | Chance Light Rain | 7 to 13 mph W | 29% |
| Saturday Night | 40°F | Chance Light Rain then Mostly Cloudy | 5 to 9 mph W | 26% |
| Sunday | 55°F | Partly Sunny then Slight Chance Light Rain | 5 to 12 mph W | 16% |
| Sunday Night | 38°F | Slight Chance Light Rain | 10 mph W | 18% |
| Monday | 56°F | Chance Light Rain | 10 to 16 mph W | 28% |
| Monday Night | 39°F | Chance Light Rain then Partly Cloudy | 9 to 13 mph SW | 28% |
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 Nov 3, 2026.