Thornton, WA 7-Day Weather Forecast
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Thornton Weather Forecast


Thornton, WA Weather Forecast Date: 1135 PM PDT Mon Oct 12 2026
Weather forecast for Thornton, WA
| Tonight Lo: 26°F Lo: -3°C |
Tonight... Clear. Widespread frost. Lows in the mid 20s to lower 30s. Light wind. |
| Tue Hi: 60°FHi: 16°C Lo: 33°F Lo: 1°C |
Tuesday... Widespread frost in the morning. Sunny. Highs in the upper 50s to lower 60s. Light wind. |
| Wed Hi: 65°FHi: 18°C Lo: 37°F Lo: 3°C |
Wednesday... Partly sunny. Areas of frost. Highs in the 60s. Light wind. |
| Thu Hi: 79°FHi: 26°C Lo: 36°F Lo: 2°C |
Thursday... Mostly clear. Highs in the upper 60s to upper 70s. Lows in the mid 30s to lower 40s. |
| Fri Hi: 79°FHi: 26°C Lo: 36°F Lo: 2°C |
Friday... Mostly clear. Highs in the upper 60s to upper 70s. Lows in the mid 30s to lower 40s. |
| Fri Hi: 79°FHi: 26°C Lo: 40°F Lo: 4°C |
Friday... Mostly clear. Highs in the upper 60s to upper 70s. Lows in the mid 30s to lower 40s. |
| Sat Hi: 66°FHi: 19°C Lo: 40°F Lo: 4°C |
Saturday... Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the mid 60s to lower 70s. |
| Sun Hi: 66°FHi: 19°C Lo: 40°F Lo: 4°C |
Sunday... Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the mid 60s to lower 70s. |
| Sun Hi: 66°FHi: 19°C Lo: 40°F Lo: 4°C |
Sunday... Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the mid 60s to lower 70s. |
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