7-Day Forecast Summary
7-Day Detailed Weather Forecast for Denison
Tonight |
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Temperature: 76°F Wind Speed: 10 mph Wind Direction: SSW Forecast: A slight chance of showers and thunderstorms between 1am and 4am, then showers and thunderstorms likely. Mostly clear. Low around 76, with temperatures rising to around 78 overnight. Heat index values as high as 101. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible. |
Sunday |
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Temperature: 84°F Wind Speed: 5 to 10 mph Wind Direction: NE Forecast: Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny. High near 84, with temperatures falling to around 82 in the afternoon. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible. |
Sunday Night |
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Temperature: 67°F Wind Speed: 5 to 10 mph Wind Direction: NNE Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. North northeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible. |
Monday |
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Temperature: 79°F Wind Speed: 5 to 10 mph Wind Direction: NE Forecast: A chance of showers and thunderstorms before 10am. Partly sunny, with a high near 79. Northeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible. |
Monday Night |
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Temperature: 67°F Wind Speed: 0 to 5 mph Wind Direction: ENE Forecast: Mostly cloudy, with a low around 67. East northeast wind 0 to 5 mph. |
Tuesday |
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Temperature: 86°F Wind Speed: 0 to 5 mph Wind Direction: SE Forecast: Mostly sunny, with a high near 86. Southeast wind 0 to 5 mph. |
Tuesday Night |
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Temperature: 72°F Wind Speed: 5 to 10 mph Wind Direction: S Forecast: Mostly clear, with a low around 72. South wind 5 to 10 mph. |
Wednesday |
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Temperature: 92°F Wind Speed: 10 to 20 mph Wind Direction: SSW Forecast: Sunny, with a high near 92. South southwest wind 10 to 20 mph, with gusts as high as 30 mph. |
Wednesday Night |
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Temperature: 77°F Wind Speed: 15 mph Wind Direction: S Forecast: Mostly clear, with a low around 77. South wind around 15 mph, with gusts as high as 30 mph. |
Thursday |
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Temperature: 90°F Wind Speed: 15 mph Wind Direction: SSE Forecast: Mostly sunny, with a high near 90. |
Thursday Night |
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Temperature: 74°F Wind Speed: 5 to 10 mph Wind Direction: ESE Forecast: A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 50%. |
Juneteenth |
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Temperature: 88°F Wind Speed: 5 to 10 mph Wind Direction: E Forecast: A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 50%. |
Friday Night |
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Temperature: 74°F Wind Speed: 5 to 10 mph Wind Direction: ESE Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 30%. |
Saturday |
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Temperature: 90°F Wind Speed: 5 to 10 mph Wind Direction: SSE Forecast: A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 30%. |

