Weather WorldFrederick Lake, SD Weather Forecast
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Frederick Lake Weather Forecast
| REST OF TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  |  |  | |  |  | | |  |  | |
| Mostly Cloudy | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Chance of Showers |
| Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Lo: 55°FLo: 13°C |
| POP: 50% | POP: 90% | POP: 20% | POP: 50% | POP: 70% | POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 922 AM CDT Tue Sep 22 2026 
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Issued: 644 AM CDT Tue Sep 22 2026
Key Messages
- Spotty rain showers (30-55%) return this evening through Wednesday morning across central South Dakota. Additional rain (60-90%) is expected Wednesday morning through Thursday morning. Chance of rainfall of a quarter inch or more is 40-80%, highest east of the James River through western MN.
- Occasional rain chances continue for the end of the week with the best chances (40-65%) occurring Friday through Saturday morning.
- Temperatures will remain near to slightly below seasonal average...