Harman US

West Myerstown, PA Weather & Growing Conditions

This Afternoon
74°F
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 74. East wind around 6 mph. Chance of precipitation is 20%.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 74°F Slight Chance Rain Showers 6 mph E 15%
Tonight 60°F Rain Showers Likely 7 to 12 mph SE 73%
Sunday 77°F Rain Showers 8 to 13 mph S 96%
Sunday Night 56°F Showers And Thunderstorms then Mostly Cloudy 7 to 10 mph NW 79%
Monday 71°F Partly Sunny then Chance Rain Showers 10 mph NE 28%
Monday Night 51°F Chance Rain Showers 8 to 14 mph NE 45%
Tuesday 64°F Chance Rain Showers 14 mph NE 50%
Tuesday Night 49°F Chance Rain Showers 13 to 16 mph NE 41%
Wednesday 62°F Chance Rain Showers 17 mph NE 32%
Wednesday Night 48°F Chance Rain Showers 16 mph NE 26%
Thursday 63°F Slight Chance Rain Showers 16 mph NE 23%
Thursday Night 48°F Slight Chance Rain Showers 9 to 14 mph NE 24%
Friday 67°F Chance Rain Showers 15 mph N 27%
Friday Night 49°F Chance Rain Showers 12 to 15 mph N 27%

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

Growing snapshot for West Myerstown, PA

Last spring frost
Apr 20
First fall frost
Oct 25
Growing season
185 days
Hardiness zone
7a

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

Climate data from the nearest NOAA station, Lebanon 2 W, Pa (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.