Dunbar, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dunbar, a borough in Fayette County, Pennsylvania.
Tonight
54°F
Clear
Clear, with a low around 54. Southeast wind 1 to 6 mph.
7-day forecast for Dunbar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Clear | 1 to 6 mph SE | 2% |
| Wednesday | 78°F | Partly Sunny | 6 mph S | 5% |
| Wednesday Night | 62°F | Light Rain | 8 mph S | 99% |
| Thursday | 71°F | Chance Light Rain | 6 to 10 mph SW | 46% |
| Thursday Night | 53°F | Mostly Cloudy then Slight Chance Light Rain | 1 to 5 mph SW | 15% |
| Friday | 66°F | Slight Chance Light Rain | 0 to 7 mph W | 24% |
| Friday Night | 46°F | Chance Light Rain | 0 to 3 mph NW | 38% |
| Saturday | 56°F | Chance Light Rain | 3 to 10 mph W | 40% |
| Saturday Night | 39°F | Chance Light Rain | 2 to 6 mph W | 40% |
| Sunday | 56°F | Slight Chance Light Rain | 3 to 10 mph SW | 18% |
| Sunday Night | 38°F | Chance Light Rain | 9 mph SW | 30% |
| Monday | 56°F | Chance Light Rain | 9 to 14 mph W | 38% |
| Monday Night | 38°F | Chance Light Rain | 7 to 12 mph SW | 38% |
| Tuesday | 60°F | Slight Chance Light Rain then Mostly Sunny | 13 to 16 mph SW | 15% |
Forecast source: National Weather Service (api.weather.gov) for Dunbar (39.978, -79.615). Updated through the day.
Growing snapshot for Dunbar
Last spring frost
Apr 22
First fall frost
Oct 27
Growing season
187 days
Hardiness zone
6b
More local growing data for Dunbar: nearby ZIP 15455 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Republic
Climate data from the nearest NOAA station, Connellsville 2 Ssw, Pa (2.7 mi from Dunbar). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.