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Rahn Lake Weather Forecast
| OVERNIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  | | |  | | | |  |  | |
| Clear | Chance of Rain | Chance of Rain | Chance of Rain | Mostly Clear | Sunny | Clear | Sunny | Clear | Partly Cloudy | Clearing | Sunny |
| Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C |
| POP: 20% | POP: 90% | POP: 90% |
POP = Probability of Precipitation.
Weather Outlook Updated: 132 AM CDT Wed Oct 14 2026 
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Issued: 1053 PM MDT Tue Oct 13 2026
Key Messages
- Cold tonight, especially northwestern SD where a freeze warning is in effect. Colder air overnight Thursday with widespread freezing temperatures.
- Precipitation chances overnight through Wednesday; heaviest amounts along NE/SD border.
- Breezy Thursday with Wind Advisory (45+ mph gusts) winds possible (~55%).
- Above average temperatures return for the weekend.
Discussion
...(This Evening Through Tuesday) Issued at 107 PM MDT Tue Oct 13 2026
Water vapor imagery highlights a closed low cente...