Dunbar, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dunbar, a borough in Fayette County, Pennsylvania.
Tonight
60°F
Slight Chance Rain Showers then Patchy Fog
A slight chance of rain showers between 7pm and 8pm, then patchy fog between 2am and 3am. Partly cloudy, with a low around 60. Northeast wind 1 to 5 mph. Chance of precipitation is 20%.
7-day forecast for Dunbar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Slight Chance Rain Showers then Patchy Fog | 1 to 5 mph NE | 16% |
| Saturday | 80°F | Partly Sunny | 6 mph SE | 3% |
| Saturday Night | 65°F | Partly Cloudy then Chance Rain Showers | 5 to 8 mph SE | 50% |
| Sunday | 78°F | Showers And Thunderstorms | 5 to 8 mph SW | 94% |
| Sunday Night | 63°F | Showers And Thunderstorms | 5 mph N | 94% |
| Monday | 72°F | Chance Rain Showers | 5 to 8 mph NE | 48% |
| Monday Night | 60°F | Showers And Thunderstorms Likely | 8 to 13 mph E | 70% |
| Tuesday | 67°F | Showers And Thunderstorms Likely | 15 mph E | 74% |
| Tuesday Night | 56°F | Showers And Thunderstorms Likely | 17 mph E | 71% |
| Wednesday | 64°F | Showers And Thunderstorms Likely | 14 to 18 mph SE | 66% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 52% |
| Thursday | 66°F | Chance Rain Showers | 7 to 10 mph E | 47% |
| Thursday Night | 54°F | Chance Rain Showers | 2 to 8 mph E | 31% |
| Friday | 70°F | Chance Rain Showers | 2 to 7 mph NE | 25% |
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
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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 Sep 19, 2026.