Lacy, SD Weather Forecast

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Lacy, SD Weather Forecast

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Lacy SD weather  - Clear - 80°F
Clear
80°F
Updated 3:32 pm
Feels Like 85°F
Humidity 71%
Wind S 22 mph
Barometer  29.76 in
Dew Point 70°F
Lacy SD weather  - Clear - 27°C
Clear
27°C
Updated 3:32 pm
Feels Like 29°C
Humidity 71%
Wind S 35 km/h
Barometer  100.7 kPa
Dew Point 21°C

Lacy Weather Forecast

TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Lacy, SD Weather - Tonight Partly Cloudy Lacy, SD Weather - Tuesday Partly Sunny Lacy, SD Weather - Tuesday Night Mostly Clear Lacy, SD Weather - Wednesday Sunny Lacy, SD Weather - Wednesday Night Mostly Clear Lacy, SD Weather - Thursday Sunny Lacy, SD Weather - Thursday Night Mostly Clear Lacy, SD Weather - Friday Mostly Clear Lacy, SD Weather - Friday Night Mostly Clear Lacy, SD Weather - Saturday Partly Sunny Lacy, SD Weather - Saturday Night Chance Of T-Storm Lacy, SD Weather - Sunday Chance Of Showers
Partly Cloudy Partly Sunny Mostly Clear Sunny Mostly Clear Sunny Mostly Clear Mostly Clear Mostly Clear Partly Sunny Chance of T-Storm Chance of Showers
Lo: 65°FLo: 18°C Hi: 85°FHi: 29°C
Lo: 55°FLo: 13°C Hi: 80°FHi: 27°C
Lo: 55°FLo: 13°C Hi: 90°FHi: 32°C
Hi: 85°FHi: 29°C
Lo: 60°FLo: 16°C
Hi: 85°FHi: 29°C
Lo: 60°FLo: 16°C
Lo: 55°FLo: 13°C Hi: 79°FHi: 26°C
Lo: 51°FLo: 11°C Hi: 71°FHi: 22°C
POP: 40% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 322 PM CDT Mon Sep 07 2026 Lacy, SD Weather - WeatherWorld.com

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Issued: 217 PM CDT Mon Sep 7 2026

Key Messages

  • There is a Marginal risk (level 1 out of 5) for severe storms over northeast SD and west central MN tonight. The primary hazards will be 1 inch in diameter hail and 60 mph wind gusts. Additionally, the threat for a tornado or two this evening over east central SD cannot be ruled out.
  • Northwest wind 15 to 25 mph with gusts of 30 to 40 mph, low relative humidity, and dry cured fuels will create elevated fire weather conditions mainly over north central SD on Tuesday.
  • There is a 20-45 p...