Prosperity Flats School, SD Weather Forecast
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Prosperity Flats School Weather Forecast
| OVERNIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Partly Cloudy | Chance of Showers | Partly Cloudy | Clearing | Rain | Chance of Rain | Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny |
| Lo: 39°FLo: 4°C | Hi: 51°FHi: 11°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 31°FLo: -1°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 79°FHi: 26°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C |
| POP: 20% | POP: 80% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 132 AM CDT Tue Oct 13 2026 

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Issued: 1043 PM MDT Mon Oct 12 2026
Key Messages
- Cooler weather prevails with precipitation chances through Thursday.
- Near-freezing temperatures overnight tonight and Tuesday and Thursday nights.
- Breezy Thursday with warmer weather for the weekend.
Discussion
...(This Evening Through Monday) Issued at 1235 PM MDT Mon Oct 12 2026
Closed upper low is centered over southeastern OR with deep trough axis extending southward off southern CA coast. Water vapor imagery shows shortwave trough pushing north of the forecast area into ND with add...
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