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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

WhenTempForecastWindPrecip
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.