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Westerville, SD 7-Day Weather Forecast
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Westerville Weather Forecast
Westerville, SD Weather Forecast Date: 1059 PM CDT Sun Sep 13 2026
Weather forecast for Westerville, SD
Tonight Lo: 59°F Lo: 15°C |
Tonight... Mostly cloudy. Showers with a chance of thunderstorms. Lows in the upper 50s. Southeast winds 5 to 10 mph, increasing to 15 to 20 mph with gusts up to 30 mph. Chance of rain 90%. |
Mon Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Monday... Mostly cloudy with a chance of thunderstorms. Showers, mainly in the morning. Breezy with highs in the mid 70s. Southeast winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 90%. |
Tue Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Tuesday... Partly sunny. Less humid with highs in the lower 70s. North winds 5 to 10 mph. |
| Wed Hi: 69°FHi: 21°C Lo: 59°F Lo: 15°C |
Wednesday... Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the upper 60s. Chance of rain 50%. |
Thu Hi: 71°FHi: 22°C Lo: 60°F Lo: 16°C |
Thursday... Cloudy in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 40%. |
| Fri Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Friday... Showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 70%. |
| Sat Hi: 71°FHi: 22°C Lo: 55°F Lo: 13°C |
Saturday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 70s. |
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