7-Day Forecast Summary
7-Day Detailed Weather Forecast for Grand Coulee
Today |
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Temperature: 75°F Wind Speed: 13 to 17 mph Wind Direction: S Forecast: Rain showers likely. Partly sunny. High near 75, with temperatures falling to around 73 in the afternoon. South wind 13 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible. |
Tonight |
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Temperature: 52°F Wind Speed: 10 to 16 mph Wind Direction: S Forecast: Rain showers likely before 11pm, then showers and thunderstorms. Cloudy. Low around 52, with temperatures rising to around 54 overnight. South wind 10 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible. |
Thursday |
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Temperature: 70°F Wind Speed: 6 to 12 mph Wind Direction: S Forecast: A slight chance of rain showers before 11am. Mostly sunny. High near 70, with temperatures falling to around 68 in the afternoon. South wind 6 to 12 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
Thursday Night |
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Temperature: 47°F Wind Speed: 2 to 6 mph Wind Direction: SE Forecast: Mostly cloudy, with a low around 47. Southeast wind 2 to 6 mph. |
Friday |
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Temperature: 71°F Wind Speed: 6 mph Wind Direction: SE Forecast: A chance of rain showers after 11am. Mostly cloudy, with a high near 71. Southeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Friday Night |
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Temperature: 52°F Wind Speed: 5 mph Wind Direction: NE Forecast: A chance of rain showers. Mostly cloudy, with a low around 52. Chance of precipitation is 30%. |
Saturday |
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Temperature: 73°F Wind Speed: 5 mph Wind Direction: NW Forecast: A slight chance of rain showers before 5pm. Partly sunny, with a high near 73. Chance of precipitation is 20%. |
Saturday Night |
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Temperature: 52°F Wind Speed: 5 mph Wind Direction: N Forecast: Mostly cloudy, with a low around 52. |
Sunday |
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Temperature: 77°F Wind Speed: 6 mph Wind Direction: N Forecast: A slight chance of rain showers after 5pm. Partly sunny, with a high near 77. Chance of precipitation is 20%. |
Sunday Night |
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Temperature: 56°F Wind Speed: 5 mph Wind Direction: N Forecast: A chance of rain showers. Partly cloudy, with a low around 56. Chance of precipitation is 30%. |
Labor Day |
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Temperature: 76°F Wind Speed: 3 to 7 mph Wind Direction: NW Forecast: A chance of rain showers. Partly sunny, with a high near 76. Chance of precipitation is 30%. |
Monday Night |
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Temperature: 56°F Wind Speed: 3 to 7 mph Wind Direction: W Forecast: A slight chance of rain showers before 5am. Partly cloudy, with a low around 56. Chance of precipitation is 20%. |
Tuesday |
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Temperature: 78°F Wind Speed: 6 mph Wind Direction: SE Forecast: Mostly sunny, with a high near 78. |
Tuesday Night |
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Temperature: 56°F Wind Speed: 2 to 6 mph Wind Direction: SE Forecast: Partly cloudy, with a low around 56. |

