Prompton, PA Weather & Growing Conditions
Today
71°F
Sunny
Sunny. High near 71, with temperatures falling to around 65 in the afternoon. Southwest wind 2 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Sunny | 2 to 9 mph SW | 1% |
| Tonight | 56°F | Mostly Cloudy then Slight Chance Light Rain | 5 to 8 mph S | 19% |
| Thursday | 67°F | Light Rain | 7 to 10 mph S | 86% |
| Thursday Night | 53°F | Chance Light Rain | 1 to 6 mph SW | 46% |
| Friday | 66°F | Chance Light Rain | 2 mph SW | 36% |
| Friday Night | 45°F | Chance Light Rain | 3 mph NW | 31% |
| Saturday | 58°F | Chance Light Rain | 3 to 8 mph W | 40% |
| Saturday Night | 39°F | Chance Light Rain | 7 to 10 mph W | 40% |
| Sunday | 51°F | Slight Chance Light Rain then Partly Sunny | 10 mph NW | 19% |
| Sunday Night | 35°F | Partly Cloudy | 7 to 10 mph W | 8% |
| Monday | 53°F | Slight Chance Light Rain | 9 to 14 mph W | 17% |
| Monday Night | 34°F | Slight Chance Light Rain then Partly Cloudy | 8 mph W | 16% |
| Tuesday | 56°F | Mostly Sunny | 7 to 13 mph W | 6% |
| Tuesday Night | 34°F | Partly Cloudy | 8 mph W | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Prompton, PA
Last spring frost
May 14
First fall frost
Oct 1
Growing season
140 days
Hardiness zone
6a
Explore more for Prompton, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Pleasant Mt 1 W, Pa (10 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.