Lawrenceville, PA Weather & Growing Conditions
Today
81°F
Sunny
Sunny, with a high near 81. South wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Sunny | 2 mph S | 0% |
| Tonight | 57°F | Mostly Clear then Patchy Fog | 3 mph S | 0% |
| Wednesday | 82°F | Patchy Fog then Partly Sunny | 1 to 6 mph S | 7% |
| Wednesday Night | 67°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph S | 16% |
| Thursday | 82°F | Showers And Thunderstorms | 2 to 6 mph SW | 83% |
| Thursday Night | 68°F | Showers And Thunderstorms | 1 to 5 mph SW | 83% |
| Friday | 81°F | Showers And Thunderstorms | 1 to 5 mph SW | 81% |
| Friday Night | 65°F | Showers And Thunderstorms | 3 mph SW | 81% |
| Saturday | 81°F | Showers And Thunderstorms Likely | 1 to 6 mph W | 63% |
| Saturday Night | 64°F | Showers And Thunderstorms Likely | 1 to 5 mph SW | 63% |
| Sunday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph SW | 20% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 20% |
| Monday | 83°F | Chance Showers And Thunderstorms | 5 to 9 mph W | 39% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 2 to 8 mph W | 39% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lawrenceville, PA
Last spring frost
May 9
First fall frost
Oct 12
Growing season
155 days
Hardiness zone
6a
Explore more for Lawrenceville, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Cowanesque Dam, Pa (2.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.