| NWS Forecast for: Mellette County Issued by: National Weather Service Rapid City, SD Last Update: 948 PM CDT Wed May 27 2026 |  |
| Rest Of Tonight: Mostly clear. Lows around 60. Southeast winds 5 to 10 mph with gusts up to 25 mph. Thursday: Becoming mostly cloudy. Breezy with highs in the upper 80s. South winds 10 to 20 mph with gusts up to 30 mph, increasing to southeast 20 to 30 mph with gusts up to 40 mph in the afternoon. Thursday Night: Becoming partly cloudy. Breezy with lows in the upper 50s. South winds 15 to 25 mph with gusts up to 35 mph. Friday: Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Windy with highs in the mid 80s. South winds 25 to 35 mph. Chance of rain 20 percent. Friday Night: Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Breezy with lows in the upper 50s. Southeast winds 20 to 30 mph, diminishing to 15 to 20 mph after midnight. Chance of rain 40 percent. Saturday: Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with showers likely with a chance of thunderstorms in the afternoon. Windy with highs in the lower 80s. Chance of rain 70 percent. Saturday Night: Partly cloudy with showers with a chance of thunderstorms in the evening, then mostly cloudy with a chance of showers after midnight. Breezy with lows in the mid 50s. Chance of rain 80 percent. Sunday: Partly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 30 percent. Sunday Night: Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 30 percent. Monday: Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. Monday Night: Partly cloudy with a chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Lows in the lower 50s. Chance of rain 40 percent. Tuesday: Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 30 percent. Tuesday Night: A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 50s. Chance of rain 40 percent. Wednesday: Partly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 30 percent. | |
| Zone Forecast: Mellette County | |
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