Mellette, SD Weather Forecast
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Mellette Weather Forecast
| REST OF TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
| Mostly Clear | Mostly Sunny | Partly Cloudy | Windy | Partly Cloudy | Chance of Showers | Mostly Cloudy | Chance of Rain | Rain | Chance of Snow | Rain and Snow | Rain and Snow |
| Lo: 40°FLo: 4°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 55°FHi: 13°C | Lo: 39°FLo: 4°C | Hi: 49°FHi: 9°C | Lo: 35°FLo: 2°C | Hi: 49°FHi: 9°C | Lo: 31°FLo: -1°C | Hi: 50°FHi: 10°C |
| POP: 20% | POP: 50% | POP: 70% | POP: 50% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 221 AM CDT Thu Oct 22 2026 

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Issued: 134 AM CDT Thu Oct 22 2026
Key Messages
- Southerly winds increase Friday, with widespread 30-40 mile per hour gusts expected during the afternoon. There is a roughly 10-30% chance for gusts to reach 45 miles per hour or more over eastern South Dakota and western Minnesota.
- Warm conditions, strong winds, and dry vegetation will lead to elevated fire weather concerns across central South Dakota Thursday, and across central and northeastern SD and west central MN Friday.
- Thursday and Friday, highs will reach the upper 70s to l...
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