Pittsburgh, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pittsburgh, a city in Allegheny County, Pennsylvania.
This Afternoon
80°F
Sunny
Sunny. High near 80, with temperatures falling to around 72 in the afternoon. Southeast wind around 2 mph.
7-day forecast for Pittsburgh
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Sunny | 2 mph SE | 1% |
| Tonight | 54°F | Mostly Clear | 5 mph SE | 2% |
| Wednesday | 78°F | Partly Sunny | 3 to 10 mph SE | 7% |
| Wednesday Night | 62°F | Light Rain | 9 mph S | 99% |
| Thursday | 71°F | Chance Light Rain | 7 to 14 mph SW | 27% |
| Thursday Night | 49°F | Partly Cloudy | 1 to 6 mph SW | 3% |
| Friday | 66°F | Partly Sunny | 1 to 7 mph W | 10% |
| Friday Night | 46°F | Slight Chance Light Rain | 6 mph NW | 24% |
| Saturday | 57°F | Chance Light Rain | 7 to 13 mph W | 29% |
| Saturday Night | 39°F | Chance Light Rain then Mostly Cloudy | 3 to 8 mph W | 26% |
| Sunday | 56°F | Partly Sunny then Slight Chance Light Rain | 3 to 12 mph W | 16% |
| Sunday Night | 38°F | Slight Chance Light Rain | 9 mph W | 18% |
| Monday | 57°F | Chance Light Rain | 9 to 15 mph W | 28% |
| Monday Night | 39°F | Chance Light Rain then Partly Cloudy | 8 to 12 mph SW | 28% |
Forecast source: National Weather Service (api.weather.gov) for Pittsburgh (40.440, -79.976). Updated through the day.
Growing snapshot for Pittsburgh
Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6b
More local growing data for Pittsburgh: nearby ZIP 15219 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Pittsburgh Allegheny Co Ap, Pa (6.9 mi from Pittsburgh). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.