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.

Fair

44°F

7°C

Humidity 74%
Wind Speed Calm
Barometer 30.30 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 19 May 10:35 pm CDT
Extended Forecast for

2 Miles NW Fort Thompson SD

Freeze Warning May 20, 01:00am until May 20, 08:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Patchy frost after 3am. Otherwise, mostly clear, with a low around 34. Calm wind becoming southeast around 5 mph after midnight.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost

  • Wednesday

    Wednesday: Areas of frost before 8am. Otherwise, increasing clouds, with a high near 67. Breezy, with a south southeast wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 67 °F

    Areas Frost
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 9pm. Mostly cloudy, with a low around 43. Southeast wind 10 to 16 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Breezy, with a south southeast wind 13 to 21 mph.

    High: 70 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 43. Southeast wind 11 to 17 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 4pm. High near 61. East southeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 42. East wind 5 to 9 mph becoming west after midnight. Chance of precipitation is 40%.

    Low: 42 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 74. West southwest wind 5 to 7 mph.

    High: 74 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. East southeast wind around 7 mph.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy frost after 3am. Otherwise, mostly clear, with a low around 34. Calm wind becoming southeast around 5 mph after midnight.
Wednesday
Areas of frost before 8am. Otherwise, increasing clouds, with a high near 67. Breezy, with a south southeast wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Wednesday Night
A slight chance of showers before 9pm. Mostly cloudy, with a low around 43. Southeast wind 10 to 16 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 70. Breezy, with a south southeast wind 13 to 21 mph.
Thursday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 43. Southeast wind 11 to 17 mph. Chance of precipitation is 20%.
Friday
Showers, with thunderstorms also possible after 4pm. High near 61. East southeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42. East wind 5 to 9 mph becoming west after midnight. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 74. West southwest wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 45. East southeast wind around 7 mph.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 51.
Memorial Day
Sunny and hot, with a high near 90.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 89. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Fort Thompson SD
 44.07°N 99.43°W (Elev. 1480 ft)
Last Update:
10:31 pm CDT May 19, 2026
Forecast Valid:
10pm CDT May 19, 2026-6pm CDT May 26, 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