Sweeney, SD Weather Forecast

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Sweeney, SD Weather Forecast

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Sweeney SD weather  - Overcast - 60°F
Overcast
60°F
Updated 6:33 pm
Feels Like 48°F
Humidity 89%
Wind E 6 mph
Barometer  30.11 in
Dew Point 57°F
Sweeney SD weather  - Overcast - 16°C
Overcast
16°C
Updated 6:33 pm
Feels Like 9°C
Humidity 89%
Wind E 10 km/h
Barometer  101.9 kPa
Dew Point 14°C

Sweeney Weather Forecast

TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY
Sweeney, SD Weather - Tonight Showers Sweeney, SD Weather - Monday Showers Sweeney, SD Weather - Monday Night Mostly Cloudy Sweeney, SD Weather - Tuesday Mostly Cloudy Sweeney, SD Weather - Tuesday Night Chance Of Showers Sweeney, SD Weather - Wednesday Chance Of Showers Sweeney, SD Weather - Wednesday Night Chance Of T-Storm Sweeney, SD Weather - Thursday Chance Of Showers Sweeney, SD Weather - Thursday Night Chance Of Showers Sweeney, SD Weather - Friday Chance Of Showers Sweeney, SD Weather - Friday Night Chance Of Showers Sweeney, SD Weather - Saturday Partly Sunny
Showers Showers Mostly Cloudy Mostly Cloudy Chance of Showers Chance of Showers Chance of T-Storm Chance of Showers Chance of Showers Chance of Showers Chance of Showers Partly Sunny
Lo: 51°FLo: 11°C Hi: 60°FHi: 16°C
Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
Lo: 50°FLo: 10°C Hi: 70°FHi: 21°C
Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C
Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C
Hi: 75°FHi: 24°C
POP: 100% POP: 70% POP: 40% POP: 40% POP: 40% POP: 20% POP: 30% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 507 PM CDT Sun Sep 20 2026 Sweeney, SD Weather - WeatherWorld.com

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Sweeney Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 1239 PM CDT Sun Sep 20 2026

Key Messages

  • Light rain moves as far east as parts of the James and Big Sioux Valleys tonight. Rain tapers off from north to south on Monday. There will be a brief break on Tuesday before rain returns Tuesday night and continues off and on through the work week.
  • Temperatures will remain near to slightly below seasonal averages through Tuesday before climbing above normal toward the middle of the week.

Discussion

... Issued at 1237 PM CDT Sun Sep 20 2026

Easterly sfc flow is almost staving off moveme...