Jeannette, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jeannette, a city in Westmoreland County, Pennsylvania.
Overnight
51°F
Mostly Clear
Mostly clear, with a low around 51. Southeast wind around 3 mph.
7-day forecast for Jeannette
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Clear | 3 mph SE | 1% |
| Wednesday | 78°F | Partly Sunny | 2 to 8 mph S | 4% |
| Wednesday Night | 60°F | Light Rain | 12 mph S | 95% |
| Thursday | 70°F | Light Rain Likely then Partly Sunny | 8 to 16 mph SW | 61% |
| Thursday Night | 47°F | Partly Cloudy | 2 to 7 mph SW | 1% |
| Friday | 63°F | Partly Sunny then Slight Chance Light Rain | 3 to 9 mph SW | 20% |
| Friday Night | 41°F | Chance Light Rain | 5 to 9 mph W | 37% |
| Saturday | 53°F | Chance Light Rain | 9 to 16 mph W | 37% |
| Saturday Night | 35°F | Chance Light Rain | 8 to 14 mph W | 26% |
| Sunday | 54°F | Partly Sunny | 8 to 18 mph W | 8% |
| Sunday Night | 32°F | Partly Cloudy | 9 to 14 mph SW | 7% |
| Monday | 55°F | Mostly Sunny | 9 to 17 mph W | 12% |
| Monday Night | 33°F | Mostly Clear | 8 to 14 mph SW | 12% |
| Tuesday | 59°F | Mostly Sunny | 14 to 21 mph SW | 4% |
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 Nov 4, 2026.