Sweeney, SD Weather Forecast

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Sweeney, SD Weather Forecast

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Sweeney SD weather  - Overcast - 63°F
Overcast
63°F
Updated 2:53 pm
Feels Like 55°F
Humidity 83%
Wind SSE 28 mph
Barometer  30.08 in
Dew Point 58°F
Sweeney SD weather  - Overcast - 17°C
Overcast
17°C
Updated 2:53 pm
Feels Like 13°C
Humidity 83%
Wind SSE 45 km/h
Barometer  101.8 kPa
Dew Point 14°C

Sweeney Weather Forecast

THIS AFTERNOON TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT
Sweeney, SD Weather - This Afternoon Chance Of T-Storm Sweeney, SD Weather - Tonight Chance Of T-Storm Sweeney, SD Weather - Thursday Mostly Cloudy Sweeney, SD Weather - Thursday Night Mostly Cloudy Sweeney, SD Weather - Friday Showers Likely Sweeney, SD Weather - Friday Night Chance Of T-Storm Sweeney, SD Weather - Saturday Partly Sunny Sweeney, SD Weather - Saturday Night Mostly Clear Sweeney, SD Weather - Sunday Partly Sunny Sweeney, SD Weather - Sunday Night Chance Of T-Storm Sweeney, SD Weather - Monday Chance Of T-Storm Sweeney, SD Weather - Monday Night Chance Of T-Storm
Chance of T-Storm Chance of T-Storm Mostly Cloudy Mostly Cloudy Showers Likely Chance of T-Storm Partly Sunny Mostly Clear Partly Sunny Chance of T-Storm Chance of T-Storm Chance of T-Storm
Hi: 70°FHi: 21°C
Lo: 59°FLo: 15°C Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C Hi: 65°FHi: 18°C
Lo: 55°FLo: 13°C Hi: 79°FHi: 26°C
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Lo: 59°FLo: 15°C Hi: 75°FHi: 24°C
Lo: 51°FLo: 11°C
POP: 20% POP: 50% POP: 60% POP: 50% POP: 50% POP: 60% POP: 70%
POP = Probability of Precipitation.
Weather Outlook Updated: 122 PM CDT Wed Sep 23 2026 Sweeney, SD Weather - WeatherWorld.com

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Issued: 221 PM CDT Wed Sep 23 2026

Key Messages

  • Scattered rain showers to weak thunderstorms will continue this afternoon. As showers move eastward into northeastern SD and western MN tonight, coverage will become more dense and rain rates will increase. Through Thursday morning, there is a 60-90% chance to see a quarter of an inch of rain or more along and east of the James River.
  • Another round of rain arrives Friday afternoon into Saturday morning. There is a 30-60% chance to see a quarter of an inch through more through Saturda...