Harman US

New Tripoli, PA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for New Tripoli, a community in Lehigh County, Pennsylvania.

Today
72°F
Mostly Sunny
Mostly sunny, with a high near 72. South wind 0 to 10 mph.

7-day forecast for New Tripoli

WhenTempForecastWindPrecip
Today 72°F Mostly Sunny 0 to 10 mph S 1%
Tonight 57°F Mostly Cloudy then Slight Chance Light Rain 5 mph SE 20%
Thursday 69°F Light Rain 5 to 10 mph S 85%
Thursday Night 57°F Light Rain Likely 0 to 5 mph SW 73%
Friday 68°F Chance Light Rain 0 mph 51%
Friday Night 48°F Chance Light Rain then Partly Cloudy 0 to 5 mph NW 37%
Saturday 61°F Mostly Sunny then Slight Chance Light Rain 5 to 10 mph W 20%
Saturday Night 41°F Slight Chance Light Rain 10 mph W 20%
Sunday 57°F Mostly Sunny 5 to 10 mph NW 5%
Sunday Night 37°F Mostly Clear 5 to 10 mph W 4%
Monday 56°F Mostly Sunny 10 to 15 mph W 6%
Monday Night 35°F Mostly Clear 5 to 10 mph W 4%
Tuesday 60°F Sunny 5 to 15 mph W 4%
Tuesday Night 37°F Mostly Clear 5 to 10 mph W 0%

Forecast source: National Weather Service (api.weather.gov) for New Tripoli (40.674, -75.748). Updated through the day.

Growing snapshot for New Tripoli

Last spring frost
Apr 26
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
6b

More local growing data for New Tripoli: nearby ZIP 18066 weather · frost dates · planting calendar · Pennsylvania frost dates

Nearby towns & communities

All Pennsylvania locations ›

Climate data from the nearest NOAA station, Rodale Rsch Ctr, Pa (7.9 mi from New Tripoli). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.