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

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Redfield Municipal Airport (K1D8)

Lat: 44.86°NLon: 98.53°WElev: 1309ft.

Fair

79°F

26°C

Humidity 84%
Wind Speed SE 12 mph
Barometer 29.90 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 30 Jul 12:15 am CDT
Extended Forecast for

Chelsea SD

  • Overnight

    Overnight: Patchy smoke. Mostly cloudy, with a low around 67. South southeast wind 10 to 13 mph.

    Low: 67 °F

    Patchy Smoke

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 82. Southeast wind 10 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 82 °F

    Chance
    T-storms then
    Heavy Rain

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Patchy smoke after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 61. East wind 10 to 14 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers
    Likely then
    Patchy Smoke

  • Friday

    Friday: Patchy smoke before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 82. North wind around 14 mph, with gusts as high as 23 mph.

    High: 82 °F

    Patchy Smoke
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. North northeast wind 5 to 10 mph becoming light north after midnight.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85. Light and variable wind becoming south 5 to 9 mph in the afternoon.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 61. South wind 10 to 13 mph.

    Low: 61 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Breezy, with a south wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 87 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. Breezy, with a south southeast wind 21 to 24 mph, with gusts as high as 34 mph.

    Low: 65 °F

    Mostly Clear
    and Breezy

Detailed Forecast

Overnight
Patchy smoke. Mostly cloudy, with a low around 67. South southeast wind 10 to 13 mph.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 82. Southeast wind 10 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Patchy smoke after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 61. East wind 10 to 14 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Patchy smoke before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 82. North wind around 14 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 58. North northeast wind 5 to 10 mph becoming light north after midnight.
Saturday
Sunny, with a high near 85. Light and variable wind becoming south 5 to 9 mph in the afternoon.
Saturday Night
Clear, with a low around 61. South wind 10 to 13 mph.
Sunday
Sunny, with a high near 87. Breezy, with a south wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph.
Sunday Night
Mostly clear, with a low around 65. Breezy, with a south southeast wind 21 to 24 mph, with gusts as high as 34 mph.
Monday
Mostly sunny, with a high near 87. Windy.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 56. Windy. Chance of precipitation is 40%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chelsea SD
 45.16°N 98.76°W (Elev. 1348 ft)
Last Update:
12:06 am CDT Jul 30, 2026
Forecast Valid:
12am CDT Jul 30, 2026-6pm CDT Aug 5, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation