Westerville, SD Weather Forecast

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Westerville, SD Weather Forecast

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Westerville SD weather  - Overcast - 62°F
Overcast
62°F
Updated 8:19 pm
Feels Like 57°F
Humidity 82%
Wind SE 8 mph
Barometer  30.12 in
Dew Point 57°F
Westerville SD weather  - Overcast - 17°C
Overcast
17°C
Updated 8:19 pm
Feels Like 14°C
Humidity 82%
Wind SE 13 km/h
Barometer  101.9 kPa
Dew Point 14°C

Westerville Weather Forecast

TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY
Westerville, SD Weather - Tonight Chance Of T-Storm Westerville, SD Weather - Monday Chance Of T-Storm Westerville, SD Weather - Monday Night Chance Of Showers Westerville, SD Weather - Tuesday Partly Sunny Westerville, SD Weather - Tuesday Night Partly Cloudy Westerville, SD Weather - Wednesday Chance Of T-Storm Westerville, SD Weather - Wednesday Night Mostly Cloudy Westerville, SD Weather - Thursday Chance Of Showers Westerville, SD Weather - Thursday Night Chance Of T-Storm Westerville, SD Weather - Friday Chance Of Showers Westerville, SD Weather - Friday Night Chance Of Showers Westerville, SD Weather - Saturday Mostly Cloudy
Chance of T-Storm Chance of T-Storm Chance of Showers Partly Sunny Partly Cloudy Chance of T-Storm Mostly Cloudy Chance of Showers Chance of T-Storm Chance of Showers Chance of Showers Mostly Cloudy
Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Lo: 51°FLo: 11°C Hi: 69°FHi: 21°C
Lo: 59°FLo: 15°C Hi: 71°FHi: 22°C
Lo: 60°FLo: 16°C Hi: 75°FHi: 24°C
Lo: 59°FLo: 15°C Hi: 71°FHi: 22°C
POP: 90% POP: 90% POP: 20% POP: 50% POP: 40% POP: 70% POP: 70% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 238 PM CDT Sun Sep 13 2026 Westerville, SD Weather - WeatherWorld.com

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Issued: 652 PM CDT Sun Sep 13 2026

Key Messages

  • Showers and thunderstorms develop after 3am Monday morning. A low chance for a marginally severe storm with hail could be possible through 9am as activity moves northeast.
  • A very conditional risk for severe storms forms late Monday afternoon along Highway 20. All hazards could be possible, though cloud cover may play a significant role in potential.
  • We`ll remain near to slightly below normal for temperatures during the upcoming week.
  • Scattered non-severe rain chances will focus in th...