| NWS Forecast for: Lyon County Issued by: National Weather Service Sioux Falls, SD Last Update: 419 PM CDT Tue Sep 30 2025 |  |
Tonight: Cloudy with a chance of sprinkles this evening, then partly cloudy after midnight. Lows in the upper 50s. South winds 5 to 10 mph. Wednesday: Mostly sunny. A chance of sprinkles in the afternoon. Highs in the mid 80s. South winds 15 to 20 mph with gusts up to 30 mph. Wednesday Night: Partly cloudy in the evening, then clearing. Lows in the lower 60s. South winds 10 to 15 mph with gusts up to 25 mph. Thursday: Sunny. Highs in the upper 80s. South winds 10 to 15 mph. Thursday Night: Clear. Lows in the lower 60s. South winds 5 to 10 mph. Friday: Sunny. Highs in the lower 90s. Friday Night: Mostly clear. Lows in the upper 60s. Saturday: Mostly sunny and breezy. Highs in the upper 80s. Saturday Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Breezy with lows in the upper 50s. Chance of rain 40 percent. Sunday: Partly sunny with a chance of showers. Not as warm with highs in the mid 70s. Chance of rain 40 percent. Sunday Night: Partly cloudy. Cooler with lows in the upper 40s. Monday: Mostly sunny. Highs in the upper 60s. Monday Night: Partly cloudy. Lows in the mid 40s. Tuesday: Sunny. Highs in the upper 60s. | |
| Zone Forecast: Lyon County | |
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