Weather WorldUnion School, SD 7-Day Weather Forecast
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Union School Weather Forecast
Union School, SD Weather Forecast Date: 637 AM MDT Sun Sep 20 2026
Weather forecast for Union School, SD
Today Hi: 59°FHi: 15°C Lo: 45°F Lo: 7°C |
Today... Patchy fog this morning. Showers. A slight chance of thunderstorms this morning, then thunderstorms this afternoon. Highs in the upper 50s. East winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 90%. |
Mon Hi: 65°FHi: 18°C Lo: 45°F Lo: 7°C |
Monday... Mostly cloudy with a chance of showers in the morning, then partly cloudy with a slight chance of showers in the afternoon. Highs in the mid 60s. Southeast winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 30%. |
Tue Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Tuesday... Becoming partly cloudy. Windy with highs in the upper 60s. Southeast winds 25 to 35 mph with gusts up to 45 mph. |
| Wed Hi: 79°FHi: 26°C Lo: 51°F Lo: 11°C |
Wednesday... Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Breezy with highs in the upper 70s. Chance of rain 40%. |
Thu Hi: 81°FHi: 27°C Lo: 51°F Lo: 11°C |
Thursday... Partly cloudy in the morning, then clearing. Highs in the lower 80s. |
| Fri Hi: 81°FHi: 27°C Lo: 55°F Lo: 13°C |
Friday... Partly cloudy in the morning, then clearing. Breezy with highs in the lower 80s. |
| Sat Hi: 81°FHi: 27°C |
Saturday... Partly cloudy in the morning, then clearing. Breezy with highs in the lower 80s. |
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