| NWS Forecast for: Union County Issued by: National Weather Service Sioux Falls, SD Last Update: 810 PM CST Tue Feb 10 2026 | |
| Tonight: Partly cloudy this evening, then becoming mostly clear. Lows in the lower 20s. Northwest winds 5 to 10 mph, becoming west after midnight. Wednesday: Sunny. Highs in the lower 50s. Southwest winds 5 to 10 mph. Wednesday Night: Cloudy. A chance of sprinkles in the evening, then a chance of rain after midnight. Not as cool with lows in the mid 30s. South winds 5 to 10 mph. Chance of rain 40 percent. Thursday: Partly sunny with a chance of sprinkles and flurries in the morning, then sunny in the afternoon. Highs in the lower 50s. Southeast winds 5 to 10 mph. Thursday Night: Mostly clear. Lows in the upper 20s. Southeast winds around 5 mph. Friday: Sunny. Highs in the mid 50s. Friday Night: Mostly clear. Lows in the lower 30s. Saturday: Sunny. Highs in the upper 50s. Saturday Night: Mostly clear. Lows in the lower 30s. Sunday: Mostly sunny. Highs in the upper 50s. Sunday Night: Mostly cloudy. Lows in the upper 30s. Washingtons Birthday: Partly sunny in the morning, then becoming mostly cloudy. Highs around 60. Monday Night: Mostly cloudy. Lows in the lower 40s. Tuesday: Partly sunny in the morning, then sunny with a slight chance of rain in the afternoon. Highs in the mid 60s. Chance of rain 20 percent. | |
| Zone Forecast: Union County | |
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