Granger, WA Weather Forecast
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Granger Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SUNDAY | MONDAY | TUESDAY |
| Clearing | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Partly Cloudy |
| Lo: 46°FLo: 8°C | Hi: 73°FHi: 23°C | Lo: 50°FLo: 10°C | Hi: 77°FHi: 25°C | Lo: 53°FLo: 12°C | Hi: 76°FHi: 24°C Lo: 53°FLo: 12°C | Hi: 76°FHi: 24°C Lo: 53°FLo: 12°C | Hi: 76°FHi: 24°C Lo: 53°FLo: 12°C | Hi: 76°FHi: 24°C Lo: 53°FLo: 12°C | Hi: 73°FHi: 23°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Tue Sep 15 2026 

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Issued: 348 PM PDT Tue Sep 15 2026
Key Messages
- Low thunderstorm chances Thursday into early Thursday night across the eastern mountains (30%) into possibly the northern foothills (15%).
- Warming temperatures into and through the weekend with highs reaching slightly above normal in tandem with dry conditions.
Discussion
... Latest water vapor imagery shows a deepening upper-level trough dropping into the PacNW coast. Its main shortwave trough in the imagery is currently offshore OR with its dry slot and moist ascent apparent downstre...
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