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Mentor School, SD Weather Forecast
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Mentor School Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  | | |  |  |  |  | |  | | |
| Patchy Fog | Chance of Showers | Chance of Showers | Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of Showers | Mostly Cloudy |
| Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C Lo: 50°FLo: 10°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C |
| POP: 20% | POP: 70% | POP: 90% | POP: 20% | POP: 20% | POP: 20% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 322 AM CDT Sat Sep 19 2026 
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Issued: 405 AM CDT Sat Sep 19 2026
Key Messages
- Low clouds, fog and light drizzle will persist through the morning hours before improving in most locations. However, the Prairie Coteau and I-29 corridor will see the low stratus and patchy fog continue into the afternoon.
- Light showers will be possible this afternoon across central SD before more widespread steadier showers move in tonight and Sunday as far east at the James Valley before tapering off to the south on Monday.
- Temperatures will remain below seasonal normals the next ...