Westport, SD Weather Forecast
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Westport Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY |
| Chance of Showers | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Mostly Sunny |
| Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 71°FHi: 22°C | Hi: 79°FHi: 26°C Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 641 AM CDT Sat Oct 03 2026 

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Issued: 617 AM CDT Sat Oct 3 2026
Key Messages
- There is a 20-40 percent chance for showers today, mainly north of Highway 14, otherwise the rest of the weekend through most of next week will be dry.
- Temperatures are expected to be near to slightly above normal this weekend into most of next week.
Discussion
... Issued at 1204 AM CDT Sat Oct 3 2026
There will be just a few hours this morning where, with about 50kts in the critical layer, Coteau downslope conditions are favored. Flow above this layer is unidirectional out of the west,...
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