Alcester, South Dakota Weather
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Click for Hazardous Weather Outlook for Alcester, South Dakota
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Weather Forecast for Alcester, South Dakota : Union County
Issued: 9:46 am CDT Jun 1, 2025 Latitude: 43.0213783 Longitude: -96.6308708 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Smoke on Today Smoke on Tonight 20% chance of thunderstorms on Monday 80% chance of rain on Tuesday Partly Sunny on Wednesday Partly Sunny on Thursday 40% chance of rain on Friday 50% chance of thunderstorms on Saturday
High: 86°F Low: 62°F High: 90°F High: 65°F High: 74°F High: 74°F High: 76°F High: 76°F
Low: 54°F Low: 48°F Low: 52°F Low: 54°F Low: 57°F  
Smoke Smoke Thunderstorms Rain Partly Sunny Partly Sunny Rain Thunderstorms
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Current Conditions at
LE MARS - (KLRJ)
73°
Clear
Haze
as of 10:15 AM CDST
Rel. Humidity: 69%
Dew Point: 63°F
Visibility: 5 Miles
Pressure: 29.89 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
YANKTON - (KYKN)
72°
Clear
Haze
as of 9:56 AM CDST
Rel. Humidity: 73%
Dew Point: 63°F
Visibility: 5 Miles
Pressure: 29.92 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SIOUX FALLS - (KFSD)
70°
Cloudy
Smoke
as of 9:56 AM CDST
Rel. Humidity: 68%
Dew Point: 59°F
Visibility: 4 Miles
Pressure: 29.90 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Broken at 3300ft, Solid Overcast at 20000ft
Smoke on Today Today... Areas of smoke. Partly sunny, with a high near 86. West northwest wind 5 to 10 mph becoming south southwest in the afternoon.
Smoke on Tonight Tonight... Areas of smoke before 4am. Partly cloudy, with a low around 62. South wind 10 to 15 mph.
20% chance of thunderstorms Monday Monday... A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.
90% chance of thunderstorms Monday Night Monday Night... A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 54. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%.
80% chance of rain Tuesday Tuesday... Showers, mainly before 1pm. High near 65. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 48. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 74.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 52.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 74.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 54.
40% chance of rain Friday Friday... A 40 percent chance of showers. Mostly sunny, with a high near 76.
50% chance of thunderstorms Friday Night Friday Night... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
50% chance of thunderstorms Saturday Saturday... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Current Radar Image


Sun Almanac for Alcester, South Dakota
Sunrise: 05:50 AM
Sunset: 8:59 PM
Civil Sunrise:05:15 AM
Civil Sunset: 9:34 PM
Nautical Sunrise: 04:31 AM
Nautical Sunset: 10:18 PM
Astro Sunrise: 03:37 AM
Astro Sunset: 11:12 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.