| NWS Forecast for: Lyon County Issued by: National Weather Service Sioux Falls, SD Last Update: 1130 AM CDT Sat Apr 11 2026 | |
This Afternoon: Cloudy. A chance of showers early, then a chance of drizzle, a slight chance of showers and thunderstorms. Patchy fog. Highs in the upper 50s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent. Tonight: Patchy fog in the evening. Mostly cloudy with a slight chance of thunderstorms. A chance of showers in the evening, then a slight chance of showers and drizzle after midnight. Not as cool with lows in the mid 50s. South winds around 20 mph with gusts up to 30 mph. Chance of rain 30 percent. Sunday: Mostly sunny. Much warmer with highs in the lower 80s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Sunday Night: Partly cloudy in the evening, then clearing. Lows in the lower 50s. Southwest winds 10 to 15 mph, becoming south around 5 mph after midnight. Monday: Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Southeast winds 5 to 10 mph, becoming south 10 to 15 mph in the afternoon. Chance of rain 40 percent. Monday Night: Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 50s. Chance of rain 40 percent. Tuesday: Partly sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 40 percent. Tuesday Night: Partly cloudy. A chance of showers in the evening. Lows in the upper 40s. Chance of rain 40 percent. Wednesday: Mostly sunny. A chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 40 percent. Wednesday Night: Partly cloudy in the evening, then clearing. Lows in the upper 40s. Thursday: Sunny. Highs around 80. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. A chance of showers. Lows in the mid 40s. Chance of rain 30 percent. Friday: Partly sunny. A chance of showers in the afternoon. Breezy and much cooler with highs around 60. Chance of rain 40 percent. | |
| Zone Forecast: Lyon County | |
Visit your local NWS office at: https://www.weather.gov/fsd/ |