Severe Thunderstorms in the Southern Plains; Heavy to Excessive Rainfall in South Central Texas

Widespread rain may produce flash flooding across the Southern Plains into the Ozarks today. Numerous instances of flash flooding are expected in south-central Texas, including the Hill Country. There will also be a risk of isolated severe thunderstorms across the southern Plains today, where an instance or two of severe wind, hail, or a brief tornado may occur. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Overcast

45°F

7°C

Humidity 72%
Wind Speed N 6 mph
Barometer 30.10 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 20 Nov 2:35 pm CST
Extended Forecast for

Iona SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 49. North northwest wind around 5 mph becoming calm.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 30. Light and variable wind becoming northeast around 5 mph after midnight.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog between 8am and 9am.  Otherwise, mostly sunny, with a high near 52. East southeast wind 6 to 10 mph becoming west in the morning.

    High: 52 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37. South wind 10 to 14 mph becoming west southwest after midnight.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58. West northwest wind 9 to 15 mph.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. West northwest wind around 9 mph becoming southwest after midnight.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. Southwest wind 8 to 10 mph becoming south southeast in the afternoon.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. South wind around 11 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of rain, mainly before noon.  Partly sunny, with a high near 53. South wind 10 to 14 mph becoming west northwest in the afternoon.  Chance of precipitation is 30%.

    High: 53 °F

    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 49. North northwest wind around 5 mph becoming calm.
Tonight
Partly cloudy, with a low around 30. Light and variable wind becoming northeast around 5 mph after midnight.
Friday
Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 52. East southeast wind 6 to 10 mph becoming west in the morning.
Friday Night
Mostly clear, with a low around 37. South wind 10 to 14 mph becoming west southwest after midnight.
Saturday
Sunny, with a high near 58. West northwest wind 9 to 15 mph.
Saturday Night
Mostly clear, with a low around 33. West northwest wind around 9 mph becoming southwest after midnight.
Sunday
Sunny, with a high near 59. Southwest wind 8 to 10 mph becoming south southeast in the afternoon.
Sunday Night
Mostly cloudy, with a low around 40. South wind around 11 mph.
Monday
A chance of rain, mainly before noon. Partly sunny, with a high near 53. South wind 10 to 14 mph becoming west northwest in the afternoon. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 33. Breezy.
Tuesday
A slight chance of rain and snow. Partly sunny, with a high near 40. Windy. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 23. Blustery.
Wednesday
Mostly sunny, with a high near 36. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Iona SD
 43.54°N 99.44°W (Elev. 1923 ft)
2:36 pm CST Nov 20, 2025
2pm CST Nov 20, 2025-6pm CST Nov 26, 2025
 
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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