Jeannette, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jeannette, a city in Westmoreland County, Pennsylvania.
Today
86°F
Patchy Fog then Sunny
Patchy fog between 7am and 8am. Sunny, with a high near 86. East wind around 5 mph.
7-day forecast for Jeannette
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Patchy Fog then Sunny | 5 mph E | 0% |
| Tonight | 66°F | Partly Cloudy | 2 to 6 mph SE | 1% |
| Wednesday | 86°F | Partly Sunny then Isolated Showers And Thunderstorms | 2 to 6 mph SE | 23% |
| Wednesday Night | 68°F | Scattered Showers And Thunderstorms | 6 mph S | 47% |
| Thursday | 86°F | Showers And Thunderstorms | 5 to 9 mph SW | 76% |
| Thursday Night | 68°F | Showers And Thunderstorms | 7 mph SW | 76% |
| Friday | 84°F | Showers And Thunderstorms | 5 to 9 mph SW | 82% |
| Friday Night | 66°F | Showers And Thunderstorms | 7 mph SW | 82% |
| Saturday | 83°F | Showers And Thunderstorms Likely | 7 to 10 mph SW | 56% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely | 5 to 8 mph SW | 56% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 6 to 12 mph SW | 26% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 9 mph SW | 26% |
| Monday | 87°F | Chance Showers And Thunderstorms | 10 to 15 mph SW | 43% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 7 to 12 mph SW | 50% |
Forecast source: National Weather Service (api.weather.gov) for Jeannette (40.328, -79.614). Updated through the day.
Growing snapshot for Jeannette
Last spring frost
Apr 22
First fall frost
Oct 25
Growing season
186 days
Hardiness zone
6b
More local growing data for Jeannette: nearby ZIP 15634 weather · frost dates · planting calendar · Pennsylvania frost dates
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Level Green
Climate data from the nearest NOAA station, Murrysville 2 Sw, Pa (8.6 mi from Jeannette). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.