Prospect, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Prospect, a borough in Butler County, Pennsylvania.
Overnight
53°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 53. Northeast wind around 2 mph.
7-day forecast for Prospect
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Patchy Fog | 2 mph NE | 0% |
| Tuesday | 84°F | Patchy Fog then Sunny | 2 mph E | 0% |
| Tuesday Night | 63°F | Mostly Clear | 3 mph E | 0% |
| Wednesday | 86°F | Mostly Sunny then Scattered Showers And Thunderstorms | 5 mph SE | 45% |
| Wednesday Night | 66°F | Scattered Showers And Thunderstorms | 2 mph SE | 50% |
| Thursday | 85°F | Showers And Thunderstorms Likely | 2 to 6 mph S | 63% |
| Thursday Night | 66°F | Showers And Thunderstorms Likely | 5 mph SW | 63% |
| Friday | 83°F | Showers And Thunderstorms | 2 to 6 mph SW | 84% |
| Friday Night | 64°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SW | 84% |
| Saturday | 83°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 43% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 5 mph SW | 43% |
| Sunday | 86°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 2 to 8 mph SW | 20% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms | 6 mph SW | 25% |
| Monday | 86°F | Chance Rain Showers | 6 to 9 mph SW | 40% |
Forecast source: National Weather Service (api.weather.gov) for Prospect (40.899, -80.049). Updated through the day.
Growing snapshot for Prospect
Last spring frost
May 7
First fall frost
Oct 14
Growing season
159 days
Hardiness zone
6a
More local growing data for Prospect: nearby ZIP 16052 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Barkeyville
Boyers
Bruin
Butler
Callery
Cherry Valley
Chicora
Connoquenessing
East Butler
Eau Claire
Evans City
Fairview
Fenelton
Forestville
Harlansburg
Harmony
Harrisville
Homeacre-Lyndora
Karns City
Lake Arthur Estates
Mars
Meadowood
Meridian
Nixon
North Washington
Oak Hills
Petrolia
Portersville
Renfrew
Saxonburg
Climate data from the nearest NOAA station, Butler 2 Sw, Pa (8.6 mi from Prospect). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.