Lawson Heights, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lawson Heights, a community in Westmoreland County, Pennsylvania.
This Afternoon
86°F
Sunny
Sunny, with a high near 86. Southeast wind 1 to 5 mph.
7-day forecast for Lawson Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Sunny | 1 to 5 mph SE | 0% |
| Tonight | 67°F | Partly Cloudy | 2 to 6 mph SE | 0% |
| Wednesday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph SE | 28% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 1 to 5 mph S | 33% |
| Thursday | 85°F | Showers And Thunderstorms | 2 to 8 mph SW | 80% |
| Thursday Night | 68°F | Showers And Thunderstorms | 2 to 6 mph S | 80% |
| Friday | 85°F | Showers And Thunderstorms | 2 to 8 mph SW | 82% |
| Friday Night | 66°F | Showers And Thunderstorms | 2 to 6 mph SW | 82% |
| Saturday | 83°F | Chance Showers And Thunderstorms | 6 to 10 mph SW | 54% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 3 to 9 mph SW | 54% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 6 to 12 mph SW | 26% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 7 to 10 mph SW | 26% |
| Monday | 86°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 12 to 15 mph SW | 43% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 7 to 13 mph SW | 51% |
Forecast source: National Weather Service (api.weather.gov) for Lawson Heights (40.294, -79.387). Updated through the day.
Growing snapshot for Lawson Heights
Last spring frost
May 1
First fall frost
Oct 13
Growing season
164 days
Hardiness zone
6b
More local growing data for Lawson Heights: nearby ZIP 15650 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Adamsburg
Arona
Avonmore
Bear Rocks
Bradenville
Calumet
Charleroi
Collinsburg
Crabtree
Delmont
Derry
Donegal
East Vandergrift
Export
Fellsburg
Grapeville
Greensburg
Harrison City
Herminie
Hostetter
Hunker
Hyde Park
Industry
Irwin
Jeannette
Kiskimere
Latrobe
Laurel Mountain
Leechburg
Level Green
Climate data from the nearest NOAA station, Mt Pleasant, Pa (7 mi from Lawson Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.