| NWS Forecast for: Iona SD Issued by: National Weather Service Aberdeen, SD Last Update: 4:46 pm CDT Jul 13, 2025 | |
| Tonight: Mostly clear, with a low around 65. North northwest wind 8 to 11 mph becoming south southeast after midnight. Monday: Sunny and hot, with a high near 99. Breezy, with a south southeast wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Monday Night: Increasing clouds, with a low around 71. Breezy, with a south wind 18 to 21 mph, with gusts as high as 30 mph. Tuesday: A chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 92. South wind around 18 mph becoming north northeast in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 50%. Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 61. North northeast wind 14 to 17 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. Wednesday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 73. North wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%. Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North wind 14 to 17 mph. Chance of precipitation is 40%. Thursday: Partly sunny, with a high near 76. North wind around 15 mph becoming east northeast in the afternoon. Thursday Night: Partly cloudy, with a low around 59. Southeast wind around 14 mph. Friday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 20%. Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 30%. Saturday: A slight chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 20%. Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 20%. Sunday: Mostly sunny, with a high near 87. | |
| Iona SD 43.54°N 99.44°W (Elev. 1923 ft) | |
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