National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Fair

50°F

10°C

Humidity 100%
Wind Speed NE 1 mph
Barometer 30.08 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 25 Jun 4:15 am CDT
Extended Forecast for

Gettysburg SD

  • Today

    Today: Partly sunny, with a high near 77. North wind around 6 mph becoming east southeast in the afternoon.

    High: 77 °F

    Partly Sunny

  • Tonight

    Tonight: Showers likely, mainly after 5am. Mostly cloudy, with a low around 54. Southeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 80. Breezy, with a southeast wind 13 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Showers
    Likely then
    Decreasing
    Clouds and
    Breezy

  • Friday Night

    Friday Night: Increasing clouds, with a low around 61. Breezy, with a southeast wind 21 to 23 mph, with gusts as high as 32 mph.

    Low: 61 °F

    Increasing
    Clouds and
    Breezy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 86. Windy, with a south southeast wind 25 to 32 mph, with gusts as high as 44 mph. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers and
    Windy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 63. Breezy, with a south southeast wind 24 to 29 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 89. Southeast wind around 17 mph becoming west southwest in the afternoon. Winds could gust as high as 28 mph.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms after 1am. Mostly clear, with a low around 61. West southwest wind 10 to 14 mph becoming east after midnight. Chance of precipitation is 40%.

    Low: 61 °F

    Clear then
    Chance
    T-storms

  • Monday

    Monday: Sunny, with a high near 86. Northeast wind 15 to 17 mph becoming west in the afternoon. Winds could gust as high as 29 mph.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 77. North wind around 6 mph becoming east southeast in the afternoon.
Tonight
Showers likely, mainly after 5am. Mostly cloudy, with a low around 54. Southeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 80. Breezy, with a southeast wind 13 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Increasing clouds, with a low around 61. Breezy, with a southeast wind 21 to 23 mph, with gusts as high as 32 mph.
Saturday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 86. Windy, with a south southeast wind 25 to 32 mph, with gusts as high as 44 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 63. Breezy, with a south southeast wind 24 to 29 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 89. Southeast wind around 17 mph becoming west southwest in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
A chance of showers and thunderstorms after 1am. Mostly clear, with a low around 61. West southwest wind 10 to 14 mph becoming east after midnight. Chance of precipitation is 40%.
Monday
Sunny, with a high near 86. Northeast wind 15 to 17 mph becoming west in the afternoon. Winds could gust as high as 29 mph.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gettysburg SD
 45.01°N 99.96°W (Elev. 2057 ft)
Last Update:
3:36 am CDT Jun 25, 2026
Forecast Valid:
4am CDT Jun 25, 2026-6pm CDT Jul 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation