Star Junction, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Star Junction, a community in Fayette County, Pennsylvania.
Today
84°F
Sunny
Sunny, with a high near 84. East wind 1 to 5 mph.
7-day forecast for Star Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 1 to 5 mph E | 0% |
| Tonight | 67°F | Partly Cloudy | 2 to 6 mph SE | 1% |
| Wednesday | 84°F | Mostly Sunny then Isolated Showers And Thunderstorms | 2 to 6 mph S | 19% |
| Wednesday Night | 68°F | Scattered Showers And Thunderstorms | 5 mph S | 46% |
| Thursday | 83°F | Showers And Thunderstorms | 5 to 8 mph SW | 78% |
| Thursday Night | 68°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 7 mph SW | 78% |
| Friday | 82°F | Showers And Thunderstorms | 6 to 9 mph SW | 82% |
| Friday Night | 66°F | Showers And Thunderstorms | 3 to 7 mph SW | 82% |
| Saturday | 82°F | Showers And Thunderstorms Likely | 6 to 9 mph SW | 60% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 to 7 mph SW | 60% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 6 to 9 mph SW | 25% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 8 mph SW | 25% |
| Monday | 84°F | Chance Showers And Thunderstorms | 12 mph SW | 38% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 6 to 9 mph SW | 48% |
Forecast source: National Weather Service (api.weather.gov) for Star Junction (40.061, -79.766). Updated through the day.
Growing snapshot for Star Junction
Last spring frost
Apr 27
First fall frost
Oct 22
Growing season
177 days
Hardiness zone
6b
More local growing data for Star Junction: nearby ZIP 15482 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Donora 1 Sw, Pa (9 mi from Star Junction). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.