| NWS Forecast for: McCook County Issued by: National Weather Service Sioux Falls, SD Last Update: 133 AM CDT Wed May 20 2026 | |
Rest Of Tonight: Mostly clear. Areas of frost. Lows in the lower 30s. Southeast winds around 5 mph. Wednesday: Mostly sunny in the morning, then becoming mostly cloudy. Areas of frost in the morning. Highs in the mid 60s. South winds 5 to 10 mph. Wednesday Night: Mostly cloudy. Lows in the lower 40s. Southeast winds around 10 mph. Thursday: Partly sunny in the morning, then clearing. Highs in the upper 60s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Thursday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 40s. Southeast winds 15 to 20 mph, diminishing to around 10 mph after midnight. Friday: Showers. Highs in the upper 50s. Chance of rain 80 percent. Friday Night: Showers likely, mainly in the evening. Lows in the mid 40s. Chance of rain 70 percent. Saturday: Mostly cloudy in the morning, then becoming partly sunny. Warmer with highs in the upper 60s. Saturday Night: Partly cloudy in the evening, then clearing. Lows in the mid 40s. Sunday: Sunny, warmer with highs in the lower 80s. Sunday Night: Mostly clear. Lows in the lower 50s. Memorial Day: Sunny. Highs in the upper 80s. Monday Night: Mostly clear. Lows in the upper 50s. Tuesday: Mostly sunny and breezy. Highs in the mid 80s. | |
| Zone Forecast: McCook County | |
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