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Hazardous Weather Conditions

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Mostly Cloudy

61°F

16°C

Humidity 100%
Wind Speed SE 8 mph
Barometer 30.14 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 25 Sep 10:35 am CDT
Extended Forecast for

Gettysburg SD

Dense Fog Advisory September 25, 10:46am until September 25, 11:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory September 25, 10:46am until September 25, 11:00am

    NOW until 11:00am Fri

    Dense Fog Advisory

  • Today

    High: 66 °F

    Areas Dense
    Fog then
    Cloudy

  • Tonight

    Tonight: A chance of drizzle, mainly before 2am. Patchy fog after 4am. Otherwise, cloudy, with a low around 55. Southeast wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 55 °F

    Chance
    Drizzle and
    Patchy Fog

  • Saturday

    Saturday: Mostly cloudy, with a high near 70. Southeast wind 7 to 14 mph.

    High: 70 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy during the early evening, then becoming partly cloudy, with a low around 54. East wind around 6 mph.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70. East southeast wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of drizzle and thunderstorms after 1am. Mostly cloudy, with a low around 56. East southeast wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A chance of drizzle, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Breezy, with a south southeast wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 71 °F

    Breezy.
    Chance
    Drizzle then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 52. West northwest wind 11 to 14 mph becoming north in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Today
Areas of dense fog before noon. Otherwise, mostly cloudy, with a high near 66. Southeast wind 8 to 17 mph, with gusts as high as 28 mph.
Tonight
A chance of drizzle, mainly before 2am. Patchy fog after 4am. Otherwise, cloudy, with a low around 55. Southeast wind 14 to 18 mph, with gusts as high as 29 mph.
Saturday
Mostly cloudy, with a high near 70. Southeast wind 7 to 14 mph.
Saturday Night
Cloudy during the early evening, then becoming partly cloudy, with a low around 54. East wind around 6 mph.
Sunday
Partly sunny, with a high near 70. East southeast wind 8 to 14 mph, with gusts as high as 24 mph.
Sunday Night
A chance of drizzle and thunderstorms after 1am. Mostly cloudy, with a low around 56. East southeast wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday
A chance of drizzle, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Breezy, with a south southeast wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Monday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 52. West northwest wind 11 to 14 mph becoming north in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Tuesday
Mostly cloudy, with a high near 64. North wind around 15 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
A slight chance of showers. Sunny, with a high near 66. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 48. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Mostly sunny, with a high near 63. 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:
10:17 am CDT Sep 25, 2026
Forecast Valid:
10am CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation