Granite, ID Weather Forecast
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Granite Weather Forecast
| REST OF TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Sunny | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 80°FHi: 27°C | Lo: 50°FLo: 10°C | Hi: 77°FHi: 25°C | Hi: 70°FHi: 21°C Lo: 46°FLo: 8°C | Hi: 70°FHi: 21°C Lo: 46°FLo: 8°C | Hi: 70°FHi: 21°C Lo: 46°FLo: 8°C | Hi: 63°FHi: 17°C Lo: 46°FLo: 8°C | Hi: 63°FHi: 17°C Lo: 46°FLo: 8°C | Lo: 40°FLo: 4°C | Hi: 56°FHi: 13°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 850 AM PDT Sun Sep 20 2026 

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Issued: 1024 AM PDT Sun Sep 20 2026
Key Messages
- Warm temperatures through Tuesday with afternoon highs in the mid 70s to mid 80s.
- Temperatures begin cooling midweek, with an increasing risk for showers and high elevation snow Friday into Saturday.
- Breezy Tuesday into Wednesday. Potential for stronger winds Friday.
Discussion
... Sunday-Tuesday: Mild and dry conditions start off the new week. A ridge will be over the region Sunday with mostly clear skies then begin to flatten Monday and Tuesday as a broad upper-level trough expands t...
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