Arch, NM Weather Forecast
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| REST OF TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY |
| Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Clear | Chance of T-Storm | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 99°FHi: 37°C | Lo: 70°FLo: 21°C | Hi: 99°FHi: 37°C | Lo: 69°FLo: 21°C | Hi: 99°FHi: 37°C | Hi: 95°FHi: 35°C Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C Lo: 69°FLo: 21°C | Lo: 69°FLo: 21°C | Hi: 99°FHi: 37°C Lo: 69°FLo: 21°C | Hi: 99°FHi: 37°C Lo: 69°FLo: 21°C | Hi: 99°FHi: 37°C Lo: 69°FLo: 21°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1232 PM MDT Sat Aug 29 2026 

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Issued: 120 PM MDT Sat Aug 29 2026
Key Messages
Updated at 118 PM MDT Sat Aug 29 2026- Storms will favor areas along and west of the central mountain chain through Monday. Locally heavy rainfall as well as gusty and erratic winds can be expected.
- There is a marginal to slight risk of excessive rainfall from storms across western NM Sunday and Monday. Flash flooding could result where storms train over the same area repeatedly.
- Above normal high temperatures will raise the risk of heat- related illnesses across eastern NM for the ne...
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