Martin, SD Weather Forecast
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| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy |
| Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C |
| POP: 20% | POP: 70% | POP: 40% | POP: 70% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 657 AM MDT Sun Sep 27 2026 

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Issued: 537 AM MDT Sun Sep 27 2026
Key Messages
-Another lobe of tropical moisture expected Sunday into Monday, supporting more chances for rain
-Cool Sunday, especially on the SD Plains
-Seasonal and dry after Monday
Discussion
...(This Afternoon Through Friday) Issued at 1059 AM MDT Sat Sep 26 2026
Upper trough will remain in place through early next week over the western CONUS, supporting mainly WSW flow aloft. Pattern change expected toward next weekend as a strong NE Pac upper trough dives into the Pac NW and supports a couple str...
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