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Eureka, SD Weather Forecast

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Eureka, SD Weather Forecast

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Eureka SD weather - Clear - 40°F
Clear
40°F
Updated 8:36 pm
Feels Like 39°F
Humidity 85%
Wind ENE 10 mph
Barometer  30.15 in
Dew Point 36°F
Eureka SD weather - Clear - 4°C
Clear
4°C
Updated 8:36 pm
Feels Like 4°C
Humidity 85%
Wind ENE 16 km/h
Barometer  102 kPa
Dew Point 2°C
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Eureka Weather Forecast

TONIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY
Eureka, SD Weather - Tonight Mostly Cloudy Eureka, SD Weather - Friday Clearing Eureka, SD Weather - Friday Night Chance Of Rain Eureka, SD Weather - Saturday Chance Of Rain Eureka, SD Weather - Saturday Night Cloudy Eureka, SD Weather - Sunday Mostly Cloudy Eureka, SD Weather - Sunday Night Chance Of Rain Eureka, SD Weather - Monday Chance Of T-Storm Eureka, SD Weather - Monday Night Rain Eureka, SD Weather - Tuesday Chance Of Rain Eureka, SD Weather - Tuesday Night Chance Of Rain Eureka, SD Weather - Wednesday Chance Of Rain
Mostly Cloudy Clearing Chance of Rain Chance of Rain Cloudy Mostly Cloudy Chance of Rain Chance of T-Storm Rain Chance of Rain Chance of Rain Chance of Rain
Lo: 35°FLo: 2°C Hi: 51°FHi: 11°C
 Lo: 41°FLo: 5°C Hi: 59°FHi: 15°C
 Lo: 49°FLo: 9°C Hi: 61°FHi: 16°C
 Lo: 49°FLo: 9°C Hi: 55°FHi: 13°C
 Lo: 41°FLo: 5°C Hi: 51°FHi: 11°C
 Lo: 35°FLo: 2°C Hi: 49°FHi: 9°C
POP: 40% POP: 20% POP: 40% POP: 90% POP: 70% POP: 50% POP: 40% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 821 PM CDT Thu Oct 29 2026 Eureka, SD Weather - WeatherWorld.com

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Issued: 647 PM CDT Thu Oct 29 2026

Key Messages

  • Patchy fog may develop overnight tonight into early Friday morning. The main areas of concern will be over parts of north central South Dakota and the eastern side of the Sisseton Hills. Visibility may drop to a mile or less at times.
  • Rain showers move over the forecast area Friday evening into Saturday morning. There is a 10 to 40 percent chance to see a tenth of an inch of rain through that time frame.
  • More widespread, heavier rainfall is expected Sunday night through Tuesday as a ...