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

Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Redfield Municipal Airport (K1D8)

Lat: 44.86°NLon: 98.53°WElev: 1309ft.

Fog/Mist

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 29.86 in
Dewpoint 73°F (23°C)
Visibility 1.75 mi
Last update 15 Aug 3:45 am CDT
Extended Forecast for

Onaka SD

  • Today

    Today: A chance of showers and thunderstorms, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 80. East northeast wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    T-storms then
    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 62. East northeast wind 14 to 18 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 76. East northeast wind 14 to 18 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 63. East northeast wind 13 to 18 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    T-storms
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. East northeast wind around 13 mph. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 62. East northeast wind 8 to 14 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 80. East northeast wind 8 to 10 mph.

    High: 80 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. East northeast wind 7 to 10 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. East northeast wind 7 to 10 mph.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 80. East northeast wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 50%.
Tonight
A chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 62. East northeast wind 14 to 18 mph. Chance of precipitation is 30%.
Saturday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 76. East northeast wind 14 to 18 mph. Chance of precipitation is 20%.
Saturday Night
Showers and thunderstorms likely, mainly between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 63. East northeast wind 13 to 18 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. East northeast wind around 13 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 62. East northeast wind 8 to 14 mph. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 80. East northeast wind 8 to 10 mph.
Monday Night
Partly cloudy, with a low around 62. East northeast wind 7 to 10 mph.
Tuesday
Mostly sunny, with a high near 84. East northeast wind 7 to 10 mph.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Onaka SD
 45.19°N 99.45°W (Elev. 1850 ft)
Last Update:
5:46 am CDT Aug 15, 2025
Forecast Valid:
6am CDT Aug 15, 2025-6pm CDT Aug 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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