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Tri-Cities, WA 7-Day Weather Forecast
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Tri-Cities Weather Forecast
Tri-Cities, WA Weather Forecast Date: 302 PM PDT Fri Oct 23 2026
Weather forecast for Tri-Cities, WA
Tonight Lo: 33°F Lo: 1°C |
Tonight... Mostly clear. Patchy fog and frost overnight. Lows in the lower to mid 30s. Southwest wind 5 to 10 mph with gusts to around 20 mph in the evening, becoming light. |
| Sat Hi: 57°FHi: 14°C Lo: 33°F Lo: 1°C |
Saturday... Mostly sunny. Widespread frost and patchy fog in the morning. Highs in the mid to upper 50s. Light wind. |
Sun Hi: 57°FHi: 14°C Lo: 37°F Lo: 3°C |
Sunday... Partly sunny. Patchy frost. Highs in the mid to upper 50s. Light wind. |
Mon Hi: 57°FHi: 14°C Lo: 37°F Lo: 3°C |
Monday... Partly sunny with a 20% chance of rain showers. Patchy fog. Highs in the mid to upper 50s. |
Tue Hi: 56°FHi: 13°C Lo: 37°F Lo: 3°C |
Tuesday... Partly cloudy. Highs in the mid 50s to lower 60s. Lows in the mid to upper 30s. |
Wed Hi: 57°FHi: 14°C Lo: 33°F Lo: 1°C |
Wednesday... Mostly sunny with a 20% chance of rain showers. Highs in the mid to upper 50s. |
| Thu Hi: 55°FHi: 13°C Lo: 33°F Lo: 1°C |
Thursday... Partly cloudy. Lows in the lower to mid 30s. Highs in the 50s. |
| Fri Hi: 55°FHi: 13°C Lo: 33°F Lo: 1°C |
Friday... Partly cloudy. Lows in the lower to mid 30s. Highs in the 50s. |
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