Lawrenceville, PA Weather & Growing Conditions
Tonight
48°F
Areas Of Fog
Areas of fog between 10pm and 4am. Partly cloudy, with a low around 48. North wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Areas Of Fog | 3 mph N | 0% |
| Saturday | 65°F | Partly Sunny | 0 to 3 mph E | 2% |
| Saturday Night | 55°F | Mostly Cloudy then Rain Showers | 2 to 6 mph SE | 85% |
| Sunday | 64°F | Showers And Thunderstorms | 7 mph SW | 96% |
| Sunday Night | 50°F | Rain Showers Likely | 7 mph N | 66% |
| Monday | 60°F | Partly Sunny then Slight Chance Rain Showers | 8 mph NE | 18% |
| Monday Night | 46°F | Chance Rain Showers | 2 to 7 mph NE | 43% |
| Tuesday | 56°F | Chance Rain Showers | 3 to 7 mph E | 43% |
| Tuesday Night | 44°F | Chance Rain Showers | 3 to 7 mph E | 42% |
| Wednesday | 55°F | Chance Rain Showers | 7 mph E | 42% |
| Wednesday Night | 45°F | Chance Showers And Thunderstorms | 2 to 6 mph E | 39% |
| Thursday | 57°F | Chance Showers And Thunderstorms | 2 to 6 mph E | 40% |
| Thursday Night | 47°F | Chance Rain Showers | 1 to 5 mph NE | 40% |
| Friday | 63°F | Slight Chance Rain Showers then Partly Sunny | 1 to 7 mph N | 18% |
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 Sep 19, 2026.