| NWS Forecast for: McCook County Issued by: National Weather Service Sioux Falls, SD Last Update: 819 PM CDT Sun Aug 16 2026 | |
Tonight: Mostly clear this evening, then becoming partly cloudy. Lows in the upper 50s. Northwest winds 5 to 10 mph, becoming southeast after midnight. Monday: Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. Monday Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Humid with lows around 60. Southwest winds 5 to 10 mph. Chance of rain 40 percent. Tuesday: Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Humid with highs in the upper 70s. Northeast winds around 5 mph, becoming southeast in the afternoon. Chance of rain 50 percent. Tuesday Night: Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 50s. Northeast winds around 5 mph, becoming southeast after midnight. Chance of rain 50 percent. Wednesday: Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 20 percent. Wednesday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s. Thursday: Mostly cloudy in the morning, then clearing. Highs in the upper 70s. Thursday Night: Mostly clear. Lows around 60. Friday: Mostly sunny. Highs in the lower 80s. Friday Night: Mostly clear. Lows around 60. Saturday: Mostly sunny. Highs in the upper 70s. Saturday Night: Partly cloudy. Lows in the lower 60s. Sunday: Mostly cloudy in the morning, then clearing. Highs in the upper 70s. | |
| Zone Forecast: McCook County | |
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