7-Day Forecast Summary
7-Day Detailed Weather Forecast for Lewisville
Tonight |
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Temperature: 85°F Wind Speed: 5 to 10 mph Wind Direction: S Forecast: Mostly clear, with a low around 85. South wind 5 to 10 mph, with gusts as high as 20 mph. |
Wednesday |
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Temperature: 103°F Wind Speed: 5 to 10 mph Wind Direction: W Forecast: A slight chance of showers and thunderstorms after 1pm. Mostly sunny. High near 103, with temperatures falling to around 100 in the afternoon. Heat index values as high as 108. West wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
Wednesday Night |
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Temperature: 80°F Wind Speed: 5 mph Wind Direction: N Forecast: A slight chance of showers and thunderstorms. Mostly clear. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 104. North wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
Thursday |
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Temperature: 100°F Wind Speed: 5 to 10 mph Wind Direction: NNE Forecast: A slight chance of rain showers before 1pm. Sunny. High near 100, with temperatures falling to around 98 in the afternoon. Heat index values as high as 101. North northeast wind 5 to 10 mph. Chance of precipitation is 20%. |
Thursday Night |
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Temperature: 78°F Wind Speed: 5 to 10 mph Wind Direction: NE Forecast: Mostly clear. Low around 78, with temperatures rising to around 80 overnight. Northeast wind 5 to 10 mph. |
Friday |
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Temperature: 100°F Wind Speed: 5 to 10 mph Wind Direction: ENE Forecast: Sunny. High near 100, with temperatures falling to around 98 in the afternoon. East northeast wind 5 to 10 mph. |
Friday Night |
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Temperature: 79°F Wind Speed: 5 to 10 mph Wind Direction: E Forecast: Clear, with a low around 79. East wind 5 to 10 mph. |
Saturday |
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Temperature: 101°F Wind Speed: 5 mph Wind Direction: SE Forecast: Sunny, with a high near 101. Southeast wind around 5 mph. |
Saturday Night |
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Temperature: 80°F Wind Speed: 5 to 10 mph Wind Direction: SE Forecast: Clear, with a low around 80. Southeast wind 5 to 10 mph. |
Sunday |
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Temperature: 102°F Wind Speed: 10 mph Wind Direction: S Forecast: Sunny, with a high near 102. |
Sunday Night |
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Temperature: 81°F Wind Speed: 10 mph Wind Direction: SSE Forecast: Clear, with a low around 81. |
Monday |
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Temperature: 101°F Wind Speed: 10 mph Wind Direction: S Forecast: Sunny, with a high near 101. |
Monday Night |
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Temperature: 81°F Wind Speed: 10 mph Wind Direction: SSE Forecast: Clear, with a low around 81. |
Tuesday |
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Temperature: 102°F Wind Speed: 10 mph Wind Direction: S Forecast: Sunny, with a high near 102. |

