Simmon Lake, SD Weather Forecast

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Simmon Lake, SD Weather Forecast

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Simmon Lake SD weather  - Clear - 57°F
Clear
57°F
Updated 6:22 am
Feels Like 48°F
Humidity 96%
Wind SE 20 mph
Barometer  29.65 in
Dew Point 56°F
Simmon Lake SD weather  - Clear - 14°C
Clear
14°C
Updated 6:22 am
Feels Like 9°C
Humidity 96%
Wind SE 32 km/h
Barometer  100.4 kPa
Dew Point 13°C

Simmon Lake Weather Forecast

TODAY TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Simmon Lake, SD Weather - Today Chance Of T-Storm Simmon Lake, SD Weather - Tonight Rain Simmon Lake, SD Weather - Tuesday Rain Simmon Lake, SD Weather - Tuesday Night Rain Simmon Lake, SD Weather - Wednesday Rain Simmon Lake, SD Weather - Wednesday Night Chance Of Rain Simmon Lake, SD Weather - Thursday Mostly Cloudy Simmon Lake, SD Weather - Friday Mostly Cloudy Simmon Lake, SD Weather - Friday Night Partly Cloudy Simmon Lake, SD Weather - Saturday Chance Of Rain Simmon Lake, SD Weather - Saturday Night Chance Of Rain Simmon Lake, SD Weather - Sunday Partly Sunny
Chance of T-Storm Rain Rain Rain Rain Chance of Rain Mostly Cloudy Mostly Cloudy Partly Cloudy Chance of Rain Chance of Rain Partly Sunny
Hi: 60°FHi: 16°C
Lo: 41°FLo: 5°C Hi: 45°FHi: 7°C
Lo: 35°FLo: 2°C Hi: 41°FHi: 5°C
Lo: 31°FLo: -1°C Hi: 45°FHi: 7°C
Lo: 29°FLo: -2°C
Hi: 45°FHi: 7°C
Lo: 29°FLo: -2°C
Lo: 31°FLo: -1°C Hi: 49°FHi: 9°C
Lo: 31°FLo: -1°C Hi: 45°FHi: 7°C
POP: 100% POP: 100% POP: 90% POP: 90% POP: 70% POP: 20% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 521 AM CST Mon Nov 02 2026 Simmon Lake, SD Weather - WeatherWorld.com

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Issued: 529 AM CST Mon Nov 2 2026

Key Messages

  • Rain continues across the forecast area this morning. The steady rain will become more scattered/spotty Monday afternoon before filling back in Monday night. A few rumbles of thunder are possible.
  • There is a 65 to 90% chance of 2" or more rain through Tuesday, and an 40% chance of 3" or more mainly along the James River valley.
  • Winds out of the north will gust 45 to 55 mph late Monday afternoon into Monday evening near and west of the Missouri River, and linger over portions of south...