Baldwin, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Baldwin, a borough in Allegheny County, Pennsylvania.
Tonight
59°F
Partly Cloudy
Partly cloudy, with a low around 59. Northeast wind 5 to 8 mph.
7-day forecast for Baldwin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Partly Cloudy | 5 to 8 mph NE | 10% |
| Saturday | 80°F | Partly Sunny | 6 mph E | 5% |
| Saturday Night | 66°F | Mostly Cloudy then Showers And Thunderstorms Likely | 7 mph SE | 61% |
| Sunday | 78°F | Showers And Thunderstorms | 9 mph SW | 95% |
| Sunday Night | 60°F | Showers And Thunderstorms | 10 mph N | 95% |
| Monday | 70°F | Chance Rain Showers | 12 mph NE | 40% |
| Monday Night | 59°F | Showers And Thunderstorms Likely | 13 mph E | 64% |
| Tuesday | 67°F | Showers And Thunderstorms Likely | 15 mph E | 72% |
| Tuesday Night | 55°F | Showers And Thunderstorms Likely | 15 mph E | 70% |
| Wednesday | 65°F | Showers And Thunderstorms Likely | 15 mph E | 65% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 9 to 14 mph E | 52% |
| Thursday | 66°F | Chance Rain Showers | 10 mph E | 40% |
| Thursday Night | 53°F | Slight Chance Rain Showers | 6 to 9 mph NE | 21% |
| Friday | 71°F | Slight Chance Rain Showers then Partly Sunny | 6 to 9 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov) for Baldwin (40.381, -79.945). Updated through the day.
Growing snapshot for Baldwin
Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6b
More local growing data for Baldwin: nearby ZIP 15207 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Pittsburgh Allegheny Co Ap, Pa (3.2 mi from Baldwin). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.