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
53°F
Mostly Cloudy
Mostly cloudy, with a low around 53. North wind around 6 mph.
7-day forecast for Carroll Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Mostly Cloudy | 6 mph N | 0% |
| Saturday | 74°F | Partly Sunny | 2 to 6 mph E | 12% |
| Saturday Night | 61°F | Chance Rain Showers | 3 to 8 mph SE | 45% |
| Sunday | 76°F | Showers And Thunderstorms | 5 to 9 mph S | 91% |
| Sunday Night | 55°F | Showers And Thunderstorms | 2 to 10 mph NW | 91% |
| Monday | 65°F | Chance Rain Showers | 6 to 10 mph NE | 27% |
| Monday Night | 51°F | Chance Rain Showers | 6 to 9 mph NE | 52% |
| Tuesday | 58°F | Rain Showers Likely | 9 mph NE | 66% |
| Tuesday Night | 48°F | Rain Showers Likely | 9 to 13 mph NE | 60% |
| Wednesday | 57°F | Chance Rain Showers | 13 mph NE | 48% |
| Wednesday Night | 48°F | Chance Rain Showers | 12 mph NE | 42% |
| Thursday | 59°F | Chance Rain Showers | 8 to 12 mph NE | 42% |
| Thursday Night | 48°F | Chance Rain Showers | 8 mph NE | 36% |
| Friday | 64°F | Slight Chance Rain Showers | 9 mph N | 21% |
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 Sep 19, 2026.