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

Reliance SD

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 82. East wind around 8 mph.

    High: 82 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly between 10pm and 4am.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 63. East wind 10 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 7am.  Patchy fog before 11am.  Otherwise, partly sunny, with a high near 86. Southeast wind 9 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 10%.

    High: 86 °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 40%.

    Low: 65 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 88. South southeast wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 40%.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 61. North wind 10 to 14 mph.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 10am.  Mostly cloudy, with a high near 76. North northeast wind 10 to 13 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 58. Northeast wind 8 to 11 mph becoming north northwest after midnight.  Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 76. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 82. East wind around 8 mph.
Tonight
A chance of showers and thunderstorms, mainly between 10pm and 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 63. East wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers and thunderstorms before 7am. Patchy fog before 11am. Otherwise, partly sunny, with a high near 86. Southeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.
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 40%.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. South southeast wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Monday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. North wind 10 to 14 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 76. North northeast wind 10 to 13 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Northeast wind 8 to 11 mph becoming north northwest after midnight. Chance of precipitation is 50%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76. Northwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 56.
Juneteenth
Sunny, with a high near 86.
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 92. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Reliance SD
 43.88°N 99.6°W (Elev. 1781 ft)
3:51 pm CDT Jun 14, 2025
3pm CDT Jun 14, 2025-6pm CDT Jun 20, 2025
 
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Additional Resources

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