Gettysburg, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gettysburg, a borough in Adams County, Pennsylvania.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. Northeast wind around 3 mph.
7-day forecast for Gettysburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 3 mph NE | 0% |
| Tonight | 66°F | Mostly Cloudy then Areas Of Fog | 0 to 3 mph E | 10% |
| Wednesday | 83°F | Showers And Thunderstorms Likely | 0 to 3 mph E | 72% |
| Wednesday Night | 69°F | Showers And Thunderstorms Likely | 3 mph SE | 58% |
| Thursday | 88°F | Patchy Fog then Chance Showers And Thunderstorms | 2 to 6 mph S | 50% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 50% |
| Friday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 53% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 0 to 3 mph NW | 53% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 43% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 0 to 3 mph W | 43% |
| Sunday | 88°F | Mostly Sunny | 0 to 3 mph NW | 13% |
| Sunday Night | 69°F | Partly Cloudy | 2 mph W | 13% |
| Monday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 7 mph W | 16% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 6 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov) for Gettysburg (39.831, -77.234). Updated through the day.
Growing snapshot for Gettysburg
Last spring frost
Apr 24
First fall frost
Oct 21
Growing season
180 days
Hardiness zone
7a
More local growing data for Gettysburg: nearby ZIP 17325 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Abbottstown
Arendtsville
Aspers
Bendersville
Biglerville
Bonneauville
Carroll Valley
Cashtown
East Berlin
Fairfield
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, Eisenhower Nhs, Pa (1.5 mi from Gettysburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.