Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Pine Ridge, Pine Ridge Airport (KIEN)

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

Mostly Cloudy

69°F

21°C

Humidity 90%
Wind Speed Calm
Barometer 29.97 in (1011.5 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 17 Aug 6:52 am MDT
Extended Forecast for

9 Miles NNW Porcupine SD

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 91. North wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 91 °F

    Becoming
    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm.  Partly cloudy, with a low around 64. North wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.

    Low: 64 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 94. South wind 5 to 15 mph becoming east in the morning. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 62. East wind 5 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 62 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. South wind 5 to 15 mph becoming east in the morning. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. East wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 98 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69. South wind around 15 mph, with gusts as high as 30 mph.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 91. North wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 64. North wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.
Monday
A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 94. South wind 5 to 15 mph becoming east in the morning. Winds could gust as high as 20 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 62. East wind 5 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 94. South wind 5 to 15 mph becoming east in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 66. East wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 98. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 69. South wind around 15 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 98.
Thursday Night
A chance of showers and thunderstorms, mainly after midnight. Partly cloudy, with a low around 63.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Porcupine SD
 43.4°N 102.41°W (Elev. 2979 ft)
7:10 am MDT Aug 17, 2025
7am MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database