Harman US

Emmaus, PA Weather & Growing Conditions

Overnight
48°F
Mostly Clear
Mostly clear, with a low around 48. Wind around 0 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 48°F Mostly Clear 0 mph 1%
Wednesday 73°F Sunny 0 to 10 mph S 2%
Wednesday Night 57°F Mostly Cloudy then Patchy Fog 5 mph S 7%
Thursday 70°F Light Rain Likely 5 to 10 mph S 70%
Thursday Night 59°F Light Rain 0 to 5 mph SW 81%
Friday 68°F Light Rain Likely 0 mph 60%
Friday Night 48°F Chance Light Rain 0 mph 43%
Saturday 63°F Mostly Sunny then Slight Chance Light Rain 5 to 10 mph W 17%
Saturday Night 40°F Slight Chance Light Rain 5 to 10 mph W 17%
Sunday 58°F Mostly Sunny 5 to 10 mph NW 4%
Sunday Night 37°F Partly Cloudy 5 mph W 5%
Monday 58°F Sunny 5 to 15 mph W 7%
Monday Night 35°F Mostly Clear 5 to 10 mph W 7%
Tuesday 61°F Sunny 5 to 10 mph W 4%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Emmaus, PA

Last spring frost
Apr 20
First fall frost
Oct 24
Growing season
184 days
Hardiness zone
7a

Explore more for Emmaus, PA: full frost dates · planting calendar · Pennsylvania frost dates

Climate data from the nearest NOAA station, Allentown Intl Ap, Pa (9.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.