Gettysburg, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gettysburg, a city in Potter County, South Dakota.
This Afternoon
65°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy. High near 65, with temperatures falling to around 61 in the afternoon. Northeast wind around 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Gettysburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Slight Chance Rain Showers | 10 mph NE | 15% |
| Tonight | 56°F | Cloudy then Slight Chance Rain Showers | 9 to 13 mph ENE | 22% |
| Sunday | 60°F | Chance Rain Showers | 13 to 16 mph ENE | 51% |
| Sunday Night | 49°F | Rain Showers Likely | 9 to 14 mph ENE | 67% |
| Monday | 61°F | Slight Chance Rain Showers then Mostly Cloudy | 12 mph E | 18% |
| Monday Night | 44°F | Partly Cloudy | 10 mph SE | 5% |
| Tuesday | 64°F | Mostly Sunny | 9 to 18 mph SE | 2% |
| Tuesday Night | 49°F | Partly Cloudy | 18 mph SE | 4% |
| Wednesday | 67°F | Partly Sunny then Slight Chance Rain Showers | 18 to 23 mph SSE | 17% |
| Wednesday Night | 52°F | Showers And Thunderstorms Likely | 15 to 23 mph SE | 60% |
| Thursday | 73°F | Chance Showers And Thunderstorms then Partly Sunny | 10 to 14 mph SE | 39% |
| Thursday Night | 54°F | Partly Cloudy | 9 mph ESE | 10% |
| Friday | 74°F | Partly Sunny | 9 to 17 mph SE | 7% |
| Friday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 18 mph SE | 22% |
Forecast source: National Weather Service (api.weather.gov) for Gettysburg (45.006, -99.954). Updated through the day.
Growing snapshot for Gettysburg
Last spring frost
May 7
First fall frost
Oct 2
Growing season
147 days
Hardiness zone
4b
More local growing data for Gettysburg: nearby ZIP 57442 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gettysburg, Sd (11 mi from Gettysburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.