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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

STURGIS (K49B)

Lat: 44.42°NLon: 103.38°WElev: 3243ft.

Overcast

59°F

15°C

Humidity 100%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 18 Sep 5:55 am MDT
Extended Forecast for

Piedmont SD

  • Today

    Today: Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 76. Calm wind becoming northeast 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 76 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A slight chance of showers before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then showers likely after 3am. Increasing clouds, with a low around 56. East wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 60%.

    Low: 56 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after noon. High near 67. Light southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 80%.

    High: 67 °F

    Showers

  • Saturday Night

    Saturday Night: Showers, with thunderstorms also possible after midnight. Low around 53. Southeast wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.

    Low: 53 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 61. East wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.

    High: 61 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 50. East wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%.

    Low: 50 °F

    Showers then
    Showers
    Likely

  • Monday

    Monday: A 50 percent chance of showers. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 74. Breezy.

    High: 74 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 76. Calm wind becoming northeast 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Tonight
A slight chance of showers before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then showers likely after 3am. Increasing clouds, with a low around 56. East wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 60%.
Saturday
Showers likely, then showers and possibly a thunderstorm after noon. High near 67. Light southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 80%.
Saturday Night
Showers, with thunderstorms also possible after midnight. Low around 53. Southeast wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.
Sunday
Showers and possibly a thunderstorm. High near 61. East wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Sunday Night
Showers and possibly a thunderstorm. Low around 50. East wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 64.
Monday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 50.
Tuesday
Partly sunny, with a high near 74. Breezy.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 53.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Piedmont SD
 44.24°N 103.37°W (Elev. 3648 ft)
Last Update:
3:41 am MDT Sep 18, 2026
Forecast Valid:
6am MDT Sep 18, 2026-6pm MDT Sep 24, 2026
 
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