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

Madison Municipal Airport (KMDS)

Lat: 44.02°NLon: 97.09°WElev: 1718ft.

Fog

64°F

18°C

Humidity 100%
Wind Speed E 6 mph
Barometer 29.99 in
Dewpoint 64°F (18°C)
Visibility 0.15 mi
Last update 14 Jul 5:55 am CDT
Extended Forecast for

Egan SD

  • Today

    Today: Sunny, with a high near 89. East wind 5 to 10 mph becoming south in the afternoon.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 68. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 62. East southeast wind 10 to 15 mph becoming north northeast after midnight. Chance of precipitation is 80%.

    Low: 62 °F

    Heavy Rain

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 73. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 56. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 89. East wind 5 to 10 mph becoming south in the afternoon.
Tonight
Increasing clouds, with a low around 68. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 62. East southeast wind 10 to 15 mph becoming north northeast after midnight. Chance of precipitation is 80%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 73. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 56. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 77.
Friday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 81.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Sunday
Partly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Egan SD
 43.99°N 96.65°W (Elev. 1532 ft)
Last Update:
5:31 am CDT Jul 14, 2025
Forecast Valid:
6am CDT Jul 14, 2025-6pm CDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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