Harman US

Pittsburgh, PA Weather & Growing Conditions

Tonight
54°F
Mostly Clear
Mostly clear, with a low around 54. Southeast wind around 6 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 54°F Mostly Clear 6 mph SE 2%
Wednesday 78°F Partly Sunny 3 to 10 mph SE 7%
Wednesday Night 62°F Light Rain 10 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%
Tuesday 60°F Mostly Sunny 13 to 17 mph W 9%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Pittsburgh, PA

Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6b

Explore more for Pittsburgh, PA: full frost dates · planting calendar · Pennsylvania frost dates

Climate data from the nearest NOAA station, Pittsburgh Allegheny Co Ap, Pa (6.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.