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Island School Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  |  | |  | | |  | | |
| Mostly Cloudy | Chance of Showers | Partly Cloudy | Clearing | Chance of Showers | Chance of Showers | Chance of Showers | Showers | Chance of Showers | Partly Sunny | Chance of Showers | Showers |
| Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C |
| POP: 50% | POP: 20% | POP: 20% | POP: 70% | POP: 70% | POP: 40% | POP: 40% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 949 PM CDT Tue Oct 27 2026 
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Issued: 841 PM CDT Tue Oct 27 2026
Key Messages
- Fog is expected to develop later tonight and into early Wednesday morning. Moderate to high (50-70%) chances of visibility below a mile, mainly for south central South Dakota and areas north of Interstate 90.
- Rain and isolated storm chances return Wednesday into Wednesday evening. If storms can develop, an isolated stronger storm capable of half dollar sized hail and 60 mph wind gusts is possible between 3 PM and 8 PM CDT.
- Additional rain chances, including a few isolated thunderstor...