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

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Mostly Cloudy

74°F

23°C

Humidity 96%
Wind Speed E 8 mph
Barometer 29.92 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 11 Aug 1:15 am CDT
Extended Forecast for

5 Miles E Gann Valley SD

  • Overnight

    Overnight: Showers and thunderstorms likely, mainly before 3am. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, with a low around 65. East northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Severe
    Thunderstorms

  • Tuesday

    Tuesday: Partly sunny, with a high near 86. East wind 5 to 10 mph.

    High: 86 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 64. East wind 5 to 10 mph.

    Low: 64 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers before 4pm, then a slight chance of showers and thunderstorms after 5pm. Patchy smoke after 5pm. Mostly sunny, with a high near 82. East wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy during the early evening, then becoming cloudy, with a low around 62. East northeast wind around 10 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Cloudy, with a high near 72. Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly before 3am. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, with a low around 65. East northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Partly sunny, with a high near 86. East wind 5 to 10 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 64. East wind 5 to 10 mph.
Wednesday
A chance of showers before 4pm, then a slight chance of showers and thunderstorms after 5pm. Patchy smoke after 5pm. Mostly sunny, with a high near 82. East wind 5 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy during the early evening, then becoming cloudy, with a low around 62. East northeast wind around 10 mph. Chance of precipitation is 60%.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 76. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 59.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Cloudy, with a high near 72. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Saturday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 76.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Gann Valley SD
 44.04°N 98.89°W (Elev. 1696 ft)
Last Update:
1:33 am CDT Aug 11, 2026
Forecast Valid:
1am CDT Aug 11, 2026-6pm CDT Aug 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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