Vivian, SD Weather Forecast
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Vivian Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT |
| Mostly Sunny | Mostly Cloudy | Partly Sunny | Clearing | Mostly Sunny | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 79°FHi: 26°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 85°FHi: 29°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 69°FHi: 21°C Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C Lo: 59°FLo: 15°C | Lo: 49°FLo: 9°C | Hi: 59°FHi: 15°C Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C Lo: 41°FLo: 5°C |
| POP: 20% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 621 AM CDT Wed Oct 07 2026 

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Issued: 603 AM CDT Wed Oct 7 2026
Key Messages
- Breezy dry conditions today with above normal temperatures.
- Above normal temperatures continue through the work week, peaking Saturday, with highs in the 80s to around 90 degrees.
- Pattern change to cooler temperatures and increasing chances for moisture early next week.
Discussion
... Issued at 1235 AM CDT Wed Oct 7 2026
We`re about 6C cooler at 850mb today compared to yesterday, with lighter and less organized low level flow. Thus will stick with NBM for highs today despite its underpe...
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