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

Hazardous Weather Conditions

Current conditions at

Sioux County Regional Airport (KSXK)

Lat: 42.99°NLon: 96.16°WElev: 1409ft.

Overcast and Breezy

50°F

10°C

Humidity 76%
Wind Speed NW 24 G 30 mph
Barometer 30.15 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 19 May 12:15 pm CDT
Extended Forecast for

Alcester SD

Frost Advisory May 20, 01:00am until May 20, 08:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 58. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 58 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Patchy frost after 5am. Otherwise, mostly clear, with a low around 35. North northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 35 °F

    Partly Cloudy
    then Patchy
    Frost

  • Wednesday

    Wednesday: Patchy frost before 7am. Otherwise, increasing clouds, with a high near 62. Southeast wind 5 to 10 mph.

    High: 62 °F

    Patchy Frost
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43. Southeast wind 5 to 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 62. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 44. East wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 58. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph.
Tonight
Patchy frost after 5am. Otherwise, mostly clear, with a low around 35. North northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
Patchy frost before 7am. Otherwise, increasing clouds, with a high near 62. Southeast wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 43. Southeast wind 5 to 10 mph.
Thursday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 62. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 44. East wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Showers likely. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 45.
Saturday
Mostly cloudy, with a high near 72.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 56.
Memorial Day
Mostly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alcester SD
 43.02°N 96.63°W (Elev. 1394 ft)
Last Update:
12:03 pm CDT May 19, 2026
Forecast Valid:
12pm CDT May 19, 2026-6pm CDT May 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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