| NWS Forecast for: Lyon County Issued by: National Weather Service Sioux Falls, SD Last Update: 440 PM CDT Sat May 9 2026 | |
Tonight: Mostly clear. Cooler with lows in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph, becoming west around 5 mph after midnight. Sunday: Sunny. Highs in the lower 60s. Northwest winds 10 to 15 mph. Sunday Night: Mostly clear. Areas of frost after midnight. Lows in the mid 30s. North winds 10 to 15 mph, becoming southeast around 5 mph after midnight. Monday: Areas of frost in the morning. Sunny, warmer with highs in the lower 70s. Southeast winds 10 to 15 mph. Monday Night: Mostly cloudy. A slight chance of showers after midnight. Breezy and not as cool with lows in the lower 50s. Southeast winds 15 to 20 mph, becoming southwest 15 to 25 mph after midnight. Chance of rain 20 percent. Tuesday: Sunny, windy with highs in the mid 70s. Tuesday Night: Clear, windy with lows in the mid 40s. Wednesday: Sunny. Highs in the lower 70s. Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. Thursday: Mostly sunny and windy, warmer with highs in the lower 80s. Thursday Night: Partly cloudy and breezy. Lows in the mid 50s. Friday: Mostly sunny. Highs in the upper 80s. Friday Night: Partly cloudy. Lows in the mid 50s. Saturday: Mostly sunny. Highs in the upper 80s. | |
| Zone Forecast: Lyon County | |
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