Bourne Slough, SD Weather Forecast
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Bourne Slough Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Sunny | Partly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Showers | Showers | Chance of Showers | Chance of Showers |
| Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 55°FHi: 13°C | Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 51°FHi: 11°C | Lo: 41°FLo: 5°C |
| POP: 60% | POP: 50% | POP: 50% | POP: 90% | POP: 70% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 534 AM CDT Thu Oct 29 2026 

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Issued: 640 AM CDT Thu Oct 29 2026
Key Messages
- Areas of fog have developed this morning, with some dense fog mainly near and along river valleys. Watch out for quickly changing visibilities on your morning commute. The last of the fog should lift between 10 and 11 am.
- Rain chances with some isolated thunderstorms return early Friday morning and continue through Saturday and again early next week.
Discussion
... Issued at 131 PM CDT Wed Oct 28 2026
Over the next couple of hours, showers and storms are expected to develop over parts o...
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