Star Junction, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Star Junction, a community in Fayette County, Pennsylvania.
This Afternoon
75°F
Mostly Sunny
Mostly sunny, with a high near 75. North wind around 8 mph. Chance of precipitation is 20%.
7-day forecast for Star Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Mostly Sunny | 8 mph N | 15% |
| Tonight | 59°F | Partly Cloudy | 2 to 7 mph NE | 14% |
| Saturday | 78°F | Partly Sunny | 5 mph E | 3% |
| Saturday Night | 65°F | Partly Cloudy then Chance Showers And Thunderstorms | 7 mph SE | 52% |
| Sunday | 77°F | Showers And Thunderstorms | 9 mph SW | 94% |
| Sunday Night | 61°F | Showers And Thunderstorms | 5 to 9 mph NW | 94% |
| Monday | 70°F | Chance Rain Showers | 10 mph NE | 46% |
| Monday Night | 59°F | Showers And Thunderstorms Likely | 10 mph E | 69% |
| Tuesday | 66°F | Showers And Thunderstorms | 10 to 14 mph E | 75% |
| Tuesday Night | 55°F | Showers And Thunderstorms Likely | 15 mph E | 71% |
| Wednesday | 63°F | Showers And Thunderstorms Likely | 14 mph E | 66% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 7 to 14 mph E | 51% |
| Thursday | 65°F | Chance Rain Showers | 9 mph E | 43% |
| Thursday Night | 53°F | Chance Rain Showers | 3 to 8 mph NE | 29% |
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 Sep 19, 2026.