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

Heavy Rain Expected Tonight and Friday Night with Flash Flooding Possible

Periods of rain & thunderstorms are expected into Saturday, with areas of heavy rain likely tonight and again Friday night. The heavy rains will bring a potential for flash flooding, as well as additional rises on area rivers & creeks. Monitor the latest river levels and rainfall forecasts here. Read More >

Hazardous Weather Conditions

Current conditions at

Sioux County Regional Airport (KSXK)

Lat: 42.99°NLon: 96.16°WElev: 1409ft.

Overcast

68°F

20°C

Humidity 94%
Wind Speed E 16 G 22 mph
Barometer 30.14 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 20 Jun 9:55 pm CDT
Extended Forecast for

Alcester SD

Flood Watch until June 22, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until June 22, 07:00am

    NOW until 7:00am Sat

    Flood Watch

  • Tonight

    Low: 68 °F

    Heavy Rain

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms, mainly before 4am, then showers and possibly a thunderstorm after 4am. Low around 69. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 69 °F

    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms, mainly between 7am and 1pm. High near 81. South southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 81 °F

    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. Northwest wind 5 to 10 mph.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85. West northwest wind 5 to 10 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly between 1am and 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a steady temperature around 68. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Showers and thunderstorms, mainly before 4am, then showers and possibly a thunderstorm after 4am. Low around 69. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms, mainly between 7am and 1pm. High near 81. South southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Saturday Night
Mostly clear, with a low around 62. Northwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 85. West northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 92.
Monday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Mostly sunny, with a high near 82.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Alcester SD
 43.02°N 96.63°W (Elev. 1394 ft)
Last Update:
9:02 pm CDT Jun 20, 2024
Forecast Valid:
10pm CDT Jun 20, 2024-6pm CDT Jun 27, 2024
 
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