Heavy to Excessive Rainfall for the Southwest;

Tropical moisture from Priscilla will bring a multi-day thunderstorm, widespread heavy rainfall and flash flooding event across the Southwest/Four Corners region. Flash flooding will be a concern in burn scars, slot canyons, and urban areas. Widespread storms are expected in central/South Florida with some isolated flash flooding possible. Read More >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

57°F

14°C

Humidity 63%
Wind Speed SE 9 mph
Barometer 30.15 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 8 Oct 9:15 pm CDT
Extended Forecast for

17 Miles NNW Gann Valley SD

  • Tonight

    Tonight: Mostly clear, with a low around 51. South wind around 17 mph, with gusts as high as 29 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Breezy, with a south wind 13 to 20 mph becoming west in the afternoon. Winds could gust as high as 28 mph.

    High: 77 °F

    Sunny and
    Breezy then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. North northwest wind around 8 mph.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68. Northeast wind 7 to 10 mph.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46. Southeast wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers before 1pm.  Partly sunny, with a high near 66. Breezy, with a southeast wind 15 to 23 mph, with gusts as high as 31 mph.  Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A slight chance of showers after 1am.  Mostly cloudy, with a low around 55. Southeast wind around 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 20%.

    Low: 55 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly before 1pm.  Mostly sunny, with a high near 78. Breezy, with a south southeast wind 17 to 21 mph becoming west in the afternoon.  Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A slight chance of showers before 1am.  Partly cloudy, with a low around 42. West northwest wind 10 to 17 mph.  Chance of precipitation is 20%.

    Low: 42 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 51. South wind around 17 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 77. Breezy, with a south wind 13 to 20 mph becoming west in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Mostly clear, with a low around 46. North northwest wind around 8 mph.
Friday
Sunny, with a high near 68. Northeast wind 7 to 10 mph.
Friday Night
Mostly cloudy, with a low around 46. Southeast wind 9 to 13 mph, with gusts as high as 21 mph.
Saturday
A slight chance of showers before 1pm. Partly sunny, with a high near 66. Breezy, with a southeast wind 15 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 55. Southeast wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Sunday
A chance of showers, mainly before 1pm. Mostly sunny, with a high near 78. Breezy, with a south southeast wind 17 to 21 mph becoming west in the afternoon. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 42. West northwest wind 10 to 17 mph. Chance of precipitation is 20%.
Columbus Day
Mostly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
A slight chance of showers. Partly sunny, with a high near 61. Chance of precipitation is 20%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Wednesday
A slight chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NNW Gann Valley SD
 44.28°N 99.08°W (Elev. 1847 ft)
8:36 pm CDT Oct 8, 2025
9pm CDT Oct 8, 2025-6pm CDT Oct 15, 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