7-Day Zone Forecast for Lyon County (Text-Only)
NWS Forecast for: Lyon County
Issued by: National Weather Service Sioux Falls, SD
Last Update: 329 AM CST Tue Feb 24 2026




Today: Mostly cloudy. Not as cool with highs in the upper 40s. West winds 15 to 20 mph, becoming northwest this afternoon.

Tonight: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 18. Northwest winds 10 to 15 mph.

Wednesday: Partly sunny with a slight chance of snow in the morning, then mostly cloudy with snow likely in the afternoon. Snow accumulation around an inch possible. Cooler with highs in the mid 30s. North winds around 5 mph, becoming southeast in the afternoon. Chance of snow 60 percent.

Wednesday Night: Mostly cloudy with a chance of snow in the evening, then partly cloudy after midnight. Little or no additional snow accumulation. Lows around 20. Southeast winds 5 to 10 mph, becoming south after midnight. Chance of snow 40 percent.

Thursday: Sunny. Not as cool with highs in the upper 40s. West winds 10 to 15 mph.

Thursday Night: Mostly clear. Not as cool with lows around 30.

Friday: Sunny. Not as cool with highs in the upper 50s.

Friday Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of snow after midnight. Cooler with lows around 20. Chance of snow 20 percent.

Saturday: Partly sunny. A slight chance of snow in the morning. Much cooler with highs around 30. Chance of snow 20 percent.

Saturday Night: Mostly cloudy in the evening, then partly cloudy with a slight chance of snow after midnight. Colder with lows around 10 above. Chance of snow 20 percent.

Sunday: Partly sunny with a 40 percent chance of snow. Highs in the upper 20s.

Sunday Night: Mostly cloudy with a 30 percent chance of snow. Lows 15 to 20.

Monday: Partly sunny with a 20 percent chance of snow. Not as cool with highs in the upper 30s.







Zone Forecast: Lyon County

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