Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Lower Brule SD

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 1am.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 62. East wind 8 to 14 mph.  Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 8am.  Patchy fog before 10am.  Otherwise, partly sunny, with a high near 84. East southeast wind 7 to 10 mph becoming south in the afternoon.  Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 65. Southeast wind 8 to 11 mph.  Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 87. Southeast wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.  Chance of precipitation is 40%.

    High: 87 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 62. North northeast wind 7 to 11 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 76. Northeast wind 8 to 10 mph.  Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 59. North wind 6 to 10 mph.  Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 75. North northwest wind 7 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. Northwest wind 6 to 10 mph becoming south southwest after midnight.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 1am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 62. East wind 8 to 14 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms before 8am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 84. East southeast wind 7 to 10 mph becoming south in the afternoon. Chance of precipitation is 20%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Southeast wind 8 to 11 mph. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southeast wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. North northeast wind 7 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Northeast wind 8 to 10 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. North wind 6 to 10 mph. Chance of precipitation is 50%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 75. North northwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 57. Northwest wind 6 to 10 mph becoming south southwest after midnight.
Juneteenth
Sunny, with a high near 85.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 64. Chance of precipitation is 20%.
Friday
Sunny and hot, with a high near 90.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Lower Brule SD
 44.07°N 99.58°W (Elev. 1444 ft)
6:16 pm CDT Jun 14, 2025
6pm CDT Jun 14, 2025-6pm CDT Jun 21, 2025
 
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