Old Town, SD Weather Forecast
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Old Town Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Sunny | Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Clearing | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 80°FHi: 27°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 90°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C |
| POP: 60% | POP: 60% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM MDT Tue Sep 08 2026 

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Issued: 213 PM MDT Tue Sep 8 2026
Key Messages
- Generally warm and dry conditions this week, with the hottest temperatures reaching the 90s Thursday and Friday.
- Elevated to near-critical fire weather conditions to result, with focus especially on Thursday, Thursday night, and Friday.
- Next organized storm system expected this weekend into Monday, potentially bringing much cooler temperatures.
Discussion
...(This Evening Through Tuesday) Issued at 213 PM MDT Tue Sep 8 2026
Our main weather concern this week will remain warm to hot, dry...
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