Carroll Valley, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Carroll Valley, a borough in Adams County, Pennsylvania.
Overnight
59°F
Partly Cloudy
Partly cloudy, with a low around 59. North wind around 2 mph.
7-day forecast for Carroll Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Partly Cloudy | 2 mph N | 0% |
| Tuesday | 83°F | Mostly Sunny | 3 mph E | 0% |
| Tuesday Night | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 3 mph E | 15% |
| Wednesday | 82°F | Showers And Thunderstorms Likely | 0 to 3 mph E | 70% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph SE | 61% |
| Thursday | 87°F | Patchy Fog then Showers And Thunderstorms Likely | 2 to 6 mph S | 55% |
| Thursday Night | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 3 mph SW | 55% |
| Friday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 53% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 3 mph W | 53% |
| Saturday | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph W | 41% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 2 mph W | 41% |
| Sunday | 86°F | Mostly Sunny | 1 to 5 mph W | 13% |
| Sunday Night | 69°F | Partly Cloudy | 2 mph W | 13% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov) for Carroll Valley (39.750, -77.387). Updated through the day.
Growing snapshot for Carroll Valley
Last spring frost
Apr 28
First fall frost
Oct 17
Growing season
170 days
Hardiness zone
7a
More local growing data for Carroll Valley: nearby ZIP 17320 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Abbottstown
Arendtsville
Aspers
Bendersville
Biglerville
Bonneauville
Cashtown
East Berlin
Fairfield
Gettysburg
Hampton
Heidlersburg
Hunterstown
Lake Heritage
Lake Meade
Littlestown
McKnightstown
McSherrystown
Midway
New Oxford
Orrtanna
Table Rock
York Springs
Climate data from the nearest NOAA station, Cashtown 1S, Pa (7.9 mi from Carroll Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.