Old Si Tank, NM Weather Forecast
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Old Si Tank Weather Forecast
| OVERNIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
| Chance of T-Storm | Chance of T-Storm | Clearing | Mostly Sunny | Mostly Clear | Clear | Clear | Mostly Clear | Mostly Clear | Chance of T-Storm | Mostly Clear | Chance of T-Storm |
| Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C |
| POP: 60% | POP: 50% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1042 PM MDT Tue Sep 29 2026 

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Issued: 1040 PM MDT Tue Sep 29 2026
Key Messages
Updated at 1039 PM MDT Tue Sep 29 2026- Light showers across the area with breezy winds Wednesday.
- Mostly dry conditions with some breeziness Thursday through Saturday with low end chances for showers confined to the Sacramento Mtns each afternoon.
- Pleasant, fall-like temperatures across the lowlands Wednesday but quickly rebounds to the mid to upper 70s Thursday and through the weekend. Temperatures will still be below normal for this time of year.
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... Issued at 1039 PM MDT ...
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