Pittsburgh, PA Weather & Growing Conditions
Tonight
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 10pm and 2am, then showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Chance Showers And Thunderstorms | 7 mph S | 75% |
| Sunday | 77°F | Showers And Thunderstorms | 7 to 10 mph SW | 97% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 10 mph N | 47% |
| Monday | 68°F | Chance Rain Showers | 12 mph NE | 38% |
| Monday Night | 57°F | Rain Showers Likely | 13 mph NE | 61% |
| Tuesday | 65°F | Rain Showers Likely | 12 to 15 mph E | 65% |
| Tuesday Night | 55°F | Rain Showers Likely | 15 mph E | 74% |
| Wednesday | 63°F | Rain Showers Likely | 16 mph E | 73% |
| Wednesday Night | 53°F | Rain Showers Likely | 12 to 15 mph E | 56% |
| Thursday | 64°F | Rain Showers Likely | 12 mph E | 56% |
| Thursday Night | 52°F | Slight Chance Rain Showers | 6 to 9 mph NE | 16% |
| Friday | 68°F | Slight Chance Rain Showers | 6 to 9 mph NE | 15% |
| Friday Night | 51°F | Partly Cloudy | 5 to 9 mph N | 12% |
| Saturday | 70°F | Mostly Sunny | 6 to 9 mph N | 8% |
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 (6.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.