Orrtanna, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Orrtanna, a community in Adams County, Pennsylvania.
This Afternoon
80°F
Partly Sunny
Partly sunny, with a high near 80. North wind around 6 mph.
7-day forecast for Orrtanna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Partly Sunny | 6 mph N | 0% |
| Tonight | 53°F | Partly Cloudy | 6 mph N | 0% |
| Saturday | 75°F | Mostly Sunny | 5 mph E | 3% |
| Saturday Night | 63°F | Chance Rain Showers | 3 to 7 mph SE | 37% |
| Sunday | 77°F | Showers And Thunderstorms | 5 to 8 mph S | 84% |
| Sunday Night | 60°F | Showers And Thunderstorms | 2 to 8 mph NW | 84% |
| Monday | 68°F | Chance Rain Showers | 8 mph NE | 38% |
| Monday Night | 56°F | Rain Showers Likely | 6 to 9 mph NE | 58% |
| Tuesday | 61°F | Rain Showers Likely | 10 mph NE | 71% |
| Tuesday Night | 51°F | Rain Showers Likely | 10 mph NE | 71% |
| Wednesday | 58°F | Rain Showers Likely | 10 mph NE | 57% |
| Wednesday Night | 50°F | Chance Showers And Thunderstorms | 9 mph NE | 53% |
| Thursday | 61°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 50% |
| Thursday Night | 51°F | Chance Rain Showers | 2 to 6 mph N | 42% |
Forecast source: National Weather Service (api.weather.gov) for Orrtanna (39.844, -77.361). Updated through the day.
Growing snapshot for Orrtanna
Last spring frost
Apr 28
First fall frost
Oct 17
Growing season
170 days
Hardiness zone
7a
More local growing data for Orrtanna: nearby ZIP 17343 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Abbottstown
Arendtsville
Aspers
Bendersville
Biglerville
Bonneauville
Carroll Valley
Cashtown
East Berlin
Fairfield
Gettysburg
Hampton
Heidlersburg
Hunterstown
Lake Heritage
Lake Meade
Littlestown
McKnightstown
McSherrystown
Midway
New Oxford
Table Rock
York Springs
Climate data from the nearest NOAA station, Cashtown 1S, Pa (1.4 mi from Orrtanna). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.