Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Fair

86°F

30°C

Humidity 62%
Wind Speed SE 8 mph
Barometer 29.90 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 11 Aug 2:55 pm CDT
Extended Forecast for

7 Miles N Stephan SD

  • This Afternoon

    This Afternoon: A slight chance of showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm.  Mostly sunny, with a high near 85. East wind around 9 mph.  Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms between 9pm and 1am, then a chance of showers after 1am.  Partly cloudy, with a low around 63. East wind 8 to 11 mph.  Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 80. East northeast wind 8 to 11 mph.

    High: 80 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am.  Cloudy, with a low around 60. East northeast wind 11 to 14 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm.  Mostly cloudy, with a high near 73. East wind 15 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 30%.

    High: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 59. East wind around 17 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms.  Cloudy, with a high near 72. East southeast wind 15 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 59. Southeast wind 9 to 11 mph becoming west after midnight.  Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly before 1pm.  Mostly cloudy, with a high near 75. North northwest wind around 10 mph.  Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny, with a high near 85. East wind around 9 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms between 9pm and 1am, then a chance of showers after 1am. Partly cloudy, with a low around 63. East wind 8 to 11 mph. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 80. East northeast wind 8 to 11 mph.
Wednesday Night
Showers and thunderstorms likely before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Cloudy, with a low around 60. East northeast wind 11 to 14 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 73. East wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 59. East wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Cloudy, with a high near 72. East southeast wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southeast wind 9 to 11 mph becoming west after midnight. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 75. North northwest wind around 10 mph. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 56. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Monday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles N Stephan SD
 44.35°N 99.48°W (Elev. 2139 ft)
2:36 pm CDT Aug 11, 2026
3pm CDT Aug 11, 2026-6pm CDT Aug 17, 2026
 
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