Youngsville, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Youngsville, a borough in Warren County, Pennsylvania.
Today
84°F
Patchy Fog then Sunny
Patchy fog before 10am. Sunny, with a high near 84. South wind around 2 mph.
7-day forecast for Youngsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Patchy Fog then Sunny | 2 mph S | 0% |
| Tonight | 60°F | Mostly Clear then Patchy Fog | 2 mph SE | 0% |
| Wednesday | 86°F | Patchy Fog then Chance Showers And Thunderstorms | 5 mph SE | 35% |
| Wednesday Night | 65°F | Showers And Thunderstorms Likely | 3 mph S | 57% |
| Thursday | 85°F | Patchy Fog | 1 to 5 mph SW | 77% |
| Thursday Night | 64°F | Showers And Thunderstorms | 0 to 3 mph SW | 77% |
| Friday | 83°F | Showers And Thunderstorms | 1 to 5 mph SW | 84% |
| Friday Night | 63°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 mph SW | 84% |
| Saturday | 83°F | Showers And Thunderstorms Likely | 1 to 5 mph SW | 60% |
| Saturday Night | 63°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 3 mph SW | 60% |
| Sunday | 86°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 1 to 7 mph SW | 23% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 6 mph SW | 37% |
| Monday | 85°F | Chance Rain Showers | 3 to 8 mph SW | 50% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 1 to 6 mph SW | 50% |
Forecast source: National Weather Service (api.weather.gov) for Youngsville (41.852, -79.317). Updated through the day.
Growing snapshot for Youngsville
Last spring frost
May 22
First fall frost
Sep 30
Growing season
131 days
Hardiness zone
5b
More local growing data for Youngsville: nearby ZIP 16371 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Chandlers Valley 1Se, Pa (4.5 mi from Youngsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.