Eureka Lake, SD Weather Forecast

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Eureka Lake, SD Weather Forecast

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Eureka Lake SD weather  - Overcast - 67°F
Overcast
67°F
Updated 12:57 pm
Feels Like 53°F
Humidity 41%
Wind SSE 15 mph
Barometer  30.14 in
Dew Point 43°F
Eureka Lake SD weather  - Overcast - 19°C
Overcast
19°C
Updated 12:57 pm
Feels Like 12°C
Humidity 41%
Wind SSE 24 km/h
Barometer  102.1 kPa
Dew Point 6°C

Eureka Lake Weather Forecast

THIS AFTERNOON TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY SATURDAY
Eureka Lake, SD Weather - This Afternoon Mostly Sunny Eureka Lake, SD Weather - Tonight Chance Of T-Storm Eureka Lake, SD Weather - Monday Chance Of T-Storm Eureka Lake, SD Weather - Monday Night Windy Eureka Lake, SD Weather - Tuesday Mostly Sunny Eureka Lake, SD Weather - Tuesday Night Partly Cloudy Eureka Lake, SD Weather - Wednesday Chance Of Showers Eureka Lake, SD Weather - Wednesday Night Partly Cloudy Eureka Lake, SD Weather - Thursday Partly Sunny Eureka Lake, SD Weather - Thursday Night Chance Of Showers Eureka Lake, SD Weather - Friday Chance Of Showers Eureka Lake, SD Weather - Saturday Chance Of Showers
Mostly Sunny Chance of T-Storm Chance of T-Storm Windy Mostly Sunny Partly Cloudy Chance of Showers Partly Cloudy Partly Sunny Chance of Showers Chance of Showers Chance of Showers
Hi: 69°FHi: 21°C
Lo: 51°FLo: 11°C Hi: 71°FHi: 22°C
Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
Lo: 49°FLo: 9°C Hi: 71°FHi: 22°C
Hi: 71°FHi: 22°C
Lo: 51°FLo: 11°C
Hi: 71°FHi: 22°C
Lo: 51°FLo: 11°C
Hi: 71°FHi: 22°C
POP: 90% POP: 100% POP: 30% POP: 40% POP: 40% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 1212 PM CDT Sun Sep 13 2026 Eureka Lake, SD Weather - WeatherWorld.com

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Issued: 1231 PM CDT Sun Sep 13 2026

Key Messages

  • Cooler than normal temperatures expected through Wednesday (highs in the 60s to low 70s) with the exception of a brief warmup on Monday (highs in the mid to upper 70s over much of the forecast area). A gradual warming trend will begin mid- week and continue through the weekend.
  • Confidence is high on widespread rain and perhaps weak thunderstorms overnight tonight through Monday afternoon. Highest rainfall totals are expected along the US-212 corridor, where totals may exceed one inch...