| NWS Forecast for: O'Brien County Issued by: National Weather Service Sioux Falls, SD Last Update: 657 AM CDT Tue Sep 2 2025 | |
Today: Patchy fog this morning. Mostly sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. Tonight: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 50s. West winds 5 to 10 mph. Chance of rain 30 percent. Wednesday: Mostly cloudy in the morning, then becoming mostly sunny. A chance of thunderstorms in the morning. A chance of showers. Patchy fog in the morning. Areas of smoke. Cooler with highs in the mid 60s. North winds 5 to 10 mph, increasing to around 15 mph in the afternoon. Chance of rain 40 percent. Wednesday Night: Areas of smoke in the evening. Partly cloudy. Much cooler with lows in the upper 30s. North winds 10 to 15 mph, becoming northwest around 5 mph after midnight. Thursday: Mostly sunny. Highs in the lower 70s. West winds 10 to 15 mph. Thursday Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 40s. Chance of rain 20 percent. Friday: Mostly sunny. Highs in the lower 60s. Friday Night: Mostly clear. Lows around 40. Saturday: Sunny. Highs in the upper 60s. Saturday Night: Mostly clear. Lows in the lower 40s. Sunday: Sunny. Highs in the lower 70s. Sunday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s. Monday: Partly sunny. Highs in the lower 70s. | |
| Zone Forecast: O'Brien County | |
Visit your local NWS office at: https://www.weather.gov/fsd/ |