Prospect, PA Weather & Growing Conditions
Tonight
63°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then showers and thunderstorms. Mostly cloudy, with a low around 63. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Chance Showers And Thunderstorms | 5 mph S | 77% |
| Sunday | 75°F | Showers And Thunderstorms | 5 to 8 mph W | 98% |
| Sunday Night | 52°F | Chance Showers And Thunderstorms | 8 mph N | 28% |
| Monday | 69°F | Chance Rain Showers | 9 mph NE | 25% |
| Monday Night | 51°F | Chance Rain Showers | 8 to 12 mph E | 48% |
| Tuesday | 64°F | Chance Rain Showers | 14 mph E | 53% |
| Tuesday Night | 50°F | Rain Showers Likely | 15 mph E | 69% |
| Wednesday | 62°F | Rain Showers Likely | 15 mph E | 69% |
| Wednesday Night | 49°F | Chance Rain Showers | 14 mph E | 52% |
| Thursday | 64°F | Chance Rain Showers | 8 to 12 mph E | 52% |
| Thursday Night | 48°F | Mostly Cloudy | 7 mph E | 14% |
| Friday | 69°F | Partly Sunny | 7 mph NE | 13% |
| Friday Night | 48°F | Partly Cloudy | 6 mph NE | 12% |
| Saturday | 71°F | Mostly Sunny | 8 mph N | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Prospect, PA
Last spring frost
May 7
First fall frost
Oct 14
Growing season
159 days
Hardiness zone
6a
Explore more for Prospect, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Butler 2 Sw, Pa (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.