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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Pierre, Pierre Regional Airport (KPIR)

Lat: 44.38°NLon: 100.29°WElev: 1742ft.

Light Rain

75°F

24°C

Humidity 94%
Wind Speed E 7 mph
Barometer 29.91 in (1011.3 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 16 Aug 12:53 am CDT
Extended Forecast for

Fort Pierre SD

Severe T-storm Watch August 16, 01:08am until August 16, 03:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch August 16, 01:08am until August 16, 03:00am

    NOW until 3:00am Sat

    Severe T-storm Watch

  • Overnight

    Low: 70 °F

    Severe
    Thunderstorms

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Partly sunny and hot, with a high near 92. Heat index values as high as 98. East wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 92 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 68. East wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 1pm. Mostly cloudy, then gradually becoming sunny and hot, with a high near 91. East wind 7 to 9 mph becoming north northeast in the afternoon. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Northeast wind 5 to 9 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny and hot, with a high near 91. Northeast wind 5 to 8 mph.

    High: 91 °F

    Hot

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65. East wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Sunny and hot, with a high near 93. East wind 5 to 10 mph.

    High: 93 °F

    Hot

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly before 3am. Some of the storms could be severe. Mostly cloudy, with a low around 70. East southeast wind around 11 mph. Chance of precipitation is 50%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Partly sunny and hot, with a high near 92. Heat index values as high as 98. East wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 68. East wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Sunday
A slight chance of showers and thunderstorms before 1pm. Mostly cloudy, then gradually becoming sunny and hot, with a high near 91. East wind 7 to 9 mph becoming north northeast in the afternoon. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Northeast wind 5 to 9 mph. Chance of precipitation is 20%.
Monday
Mostly sunny and hot, with a high near 91. Northeast wind 5 to 8 mph.
Monday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65. East wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday
Sunny and hot, with a high near 93. East wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 66. Southeast wind 6 to 11 mph.
Wednesday
Sunny and hot, with a high near 96.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Pierre SD
 44.35°N 100.38°W (Elev. 1516 ft)
Last Update:
12:46 am CDT Aug 16, 2025
Forecast Valid:
1am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation