Harper, WA 7-Day Weather Forecast
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Harper Weather Forecast


Harper, WA Weather Forecast Date: 236 PM PDT Tue Sep 15 2026
Weather forecast for Harper, WA
| Tonight Lo: 53°F Lo: 12°C |
Tonight... Mostly clear. Lows in the lower to mid 50s. North wind to 10 mph in the evening becoming light. |
| Wed Hi: 70°FHi: 21°C Lo: 53°F Lo: 12°C |
Wednesday... Sunny. Highs in the upper 60s to mid 70s. Northeast wind to 10 mph becoming north in the afternoon. |
| Thu Hi: 73°FHi: 23°C Lo: 53°F Lo: 12°C |
Thursday... Sunny. Highs in the lower to mid 70s. Light wind becoming north to 10 mph in the afternoon. |
| Fri Hi: 71°FHi: 22°C Lo: 53°F Lo: 12°C |
Friday... Sunny. Highs in the lower 70s. |
| Sat Hi: 71°FHi: 22°C Lo: 53°F Lo: 12°C |
Saturday... Partly sunny. Highs in the lower 70s. |
| Sun Hi: 73°FHi: 23°C Lo: 53°F Lo: 12°C |
Sunday... Mostly sunny. Highs in the lower to mid 70s. |
| Mon Hi: 70°FHi: 21°C Lo: 55°F Lo: 13°C |
Monday... Partly sunny. Highs near 70. |
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