Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Pine Ridge, Pine Ridge Airport (KIEN)

Lat: 43.03°NLon: 102.52°WElev: 3330ft.

Fog/Mist

64°F

18°C

Humidity 100%
Wind Speed NA
Barometer 29.97 in (1011.7 mb)
Dewpoint 64°F (18°C)
Visibility 2.50 mi
Last update 13 Aug 3:52 am MDT
Extended Forecast for

Porcupine SD

  • Overnight

    Overnight: A 40 percent chance of showers.  Areas of fog.  Otherwise, cloudy, with a steady temperature around 64. Northeast wind around 10 mph, with gusts as high as 16 mph.

    Low: 64 °F

    Chance
    Showers and
    Areas Fog

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon.  Areas of fog before noon.  Otherwise, cloudy, with a high near 72. Northeast wind 9 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 30%.

    High: 72 °F

    Chance
    Showers and
    Areas Fog

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 58. Southeast wind 6 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 84. South wind 6 to 9 mph, with gusts as high as 21 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 60. East wind 6 to 13 mph becoming north after midnight. Winds could gust as high as 21 mph.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before noon.  Partly sunny, with a high near 77. North wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 77 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, mainly before midnight.  Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 40 percent chance of showers. Areas of fog. Otherwise, cloudy, with a steady temperature around 64. Northeast wind around 10 mph, with gusts as high as 16 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Areas of fog before noon. Otherwise, cloudy, with a high near 72. Northeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 84. South wind 6 to 9 mph, with gusts as high as 21 mph.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60. East wind 6 to 13 mph becoming north after midnight. Winds could gust as high as 21 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before noon. Partly sunny, with a high near 77. North wind 6 to 13 mph, with gusts as high as 20 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
Sunday Night
A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 85.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Porcupine SD
 43.27°N 102.34°W (Elev. 3235 ft)
3:51 am MDT Aug 13, 2026
4am MDT Aug 13, 2026-6pm MDT Aug 19, 2026
 
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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