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Town of Hamilton, WAHamilton, WA Weather Forecast
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Hamilton Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
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| Chance of Rain | Partly Cloudy | Chance of Rain | Rain | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Partly Cloudy | Partly Sunny | Partly Cloudy | Chance of Rain | Chance of Rain |
| Hi: 65°FHi: 18°C | Lo: 47°FLo: 8°C | Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 56°FHi: 13°C | Lo: 47°FLo: 8°C | Hi: 63°FHi: 17°C | Lo: 43°FLo: 6°C | Hi: 63°FHi: 17°C | Lo: 43°FLo: 6°C | Hi: 63°FHi: 17°C | Lo: 47°FLo: 8°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 236 AM PDT Wed Sep 23 2026 
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Issued: 859 AM PDT Wed Sep 23 2026
Aviation
... A weak cold front will swing through the terminals today, with high pressure briefly rebuilding in its wake. A few lines of showers will move along the coastal and northern interior terminals this morning with this front. Model guidance favors a mixture of low VFR and MVFR ceilings and light southerly winds 5-10 kt this morning with isolated pockets of IFR CIGs/VIS (primarily in the Cascades and southwest interior). Conditions become VFR favoring north/northwest winds after the front...