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September weather forecast in Knoxville

Average data for 10 years

  • 30 August, Sunday. morning, 30°; night, 20°; ; Feels like +26°; Pressure 736 millimeters of mercury; Humidity 72%; Wind speed 3 Meters per second, northerly;

  • 31 August, Monday. morning, 29°; night, 20°; ; Feels like +26°; Pressure 737 millimeters of mercury; Humidity 73%; Wind speed 3 Meters per second, northerly;

  • 1 September, Tuesday. morning, 29°; night, 20°; rain; Feels like +26°; Pressure 737 millimeters of mercury; Humidity 74%; Wind speed 2.7 Meters per second, northerly;

  • 2 September, Wednesday. morning, 29°; night, 20°; ; Feels like +26°; Pressure 737 millimeters of mercury; Humidity 73%; Wind speed 2.5 Meters per second, westerly;

  • 3 September, Thursday. morning, 29°; night, 19°; rain; Feels like +25°; Pressure 737 millimeters of mercury; Humidity 74%; Wind speed 2.9 Meters per second, northerly;

  • 4 September, Friday. morning, 29°; night, 19°; ; Feels like +25°; Pressure 737 millimeters of mercury; Humidity 72%; Wind speed 2.5 Meters per second, northerly;

  • 5 September, Saturday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 737 millimeters of mercury; Humidity 71%; Wind speed 2.9 Meters per second, north-easterly;

  • 6 September, Sunday. morning, 29°; night, 18°; ; Feels like +24°; Pressure 737 millimeters of mercury; Humidity 72%; Wind speed 2.7 Meters per second, northerly;

  • 7 September, Monday. morning, 28°; night, 18°; ; Feels like +24°; Pressure 737 millimeters of mercury; Humidity 72%; Wind speed 2.7 Meters per second, northerly;

  • 8 September, Tuesday. morning, 28°; night, 18°; ; Feels like +24°; Pressure 736 millimeters of mercury; Humidity 71%; Wind speed 2.7 Meters per second, north-westerly;

  • 9 September, Wednesday. morning, 28°; night, 18°; ; Feels like +23°; Pressure 737 millimeters of mercury; Humidity 71%; Wind speed 2.5 Meters per second, northerly;

  • 10 September, Thursday. morning, 28°; night, 18°; ; Feels like +23°; Pressure 737 millimeters of mercury; Humidity 72%; Wind speed 2.5 Meters per second, northerly;

  • 11 September, Friday. morning, 28°; night, 18°; ; Feels like +23°; Pressure 738 millimeters of mercury; Humidity 73%; Wind speed 2.7 Meters per second, northerly;

  • 12 September, Saturday. morning, 28°; night, 17°; ; Feels like +23°; Pressure 737 millimeters of mercury; Humidity 72%; Wind speed 2.7 Meters per second, northerly;

  • 13 September, Sunday. morning, 28°; night, 17°; ; Feels like +23°; Pressure 737 millimeters of mercury; Humidity 72%; Wind speed 2.7 Meters per second, north-westerly;

  • 14 September, Monday. morning, 28°; night, 17°; ; Feels like +22°; Pressure 737 millimeters of mercury; Humidity 71%; Wind speed 3 Meters per second, northerly;

  • 15 September, Tuesday. morning, 27°; night, 17°; ; Feels like +22°; Pressure 738 millimeters of mercury; Humidity 69%; Wind speed 3.2 Meters per second, north-easterly;

  • 16 September, Wednesday. morning, 27°; night, 17°; ; Feels like +21°; Pressure 738 millimeters of mercury; Humidity 70%; Wind speed 3.2 Meters per second, north-easterly;

  • 17 September, Thursday. morning, 26°; night, 17°; rain; Feels like +22°; Pressure 737 millimeters of mercury; Humidity 74%; Wind speed 3 Meters per second, northerly;

  • 18 September, Friday. morning, 27°; night, 16°; ; Feels like +22°; Pressure 737 millimeters of mercury; Humidity 73%; Wind speed 2.7 Meters per second, northerly;

  • 19 September, Saturday. morning, 27°; night, 17°; ; Feels like +22°; Pressure 737 millimeters of mercury; Humidity 71%; Wind speed 2.5 Meters per second, north-westerly;

  • 20 September, Sunday. morning, 28°; night, 17°; ; Feels like +22°; Pressure 737 millimeters of mercury; Humidity 72%; Wind speed 2.7 Meters per second, southerly;

  • 21 September, Monday. morning, 27°; night, 17°; rain; Feels like +22°; Pressure 737 millimeters of mercury; Humidity 73%; Wind speed 3 Meters per second, north-easterly;

  • 22 September, Tuesday. morning, 27°; night, 16°; ; Feels like +22°; Pressure 737 millimeters of mercury; Humidity 72%; Wind speed 3 Meters per second, north-westerly;

  • 23 September, Wednesday. morning, 27°; night, 16°; ; Feels like +21°; Pressure 738 millimeters of mercury; Humidity 70%; Wind speed 3 Meters per second, northerly;

  • 24 September, Thursday. morning, 26°; night, 16°; ; Feels like +21°; Pressure 737 millimeters of mercury; Humidity 73%; Wind speed 3 Meters per second, northerly;

  • 25 September, Friday. morning, 26°; night, 16°; rain; Feels like +20°; Pressure 737 millimeters of mercury; Humidity 74%; Wind speed 3.2 Meters per second, westerly;

  • 26 September, Saturday. morning, 25°; night, 16°; rain; Feels like +20°; Pressure 736 millimeters of mercury; Humidity 76%; Wind speed 3.2 Meters per second, northerly;

  • 27 September, Sunday. morning, 25°; night, 16°; rain; Feels like +20°; Pressure 735 millimeters of mercury; Humidity 77%; Wind speed 3.5 Meters per second, westerly;

  • 28 September, Monday. morning, 25°; night, 15°; rain; Feels like +20°; Pressure 735 millimeters of mercury; Humidity 76%; Wind speed 3.4 Meters per second, westerly;

  • 29 September, Tuesday. morning, 24°; night, 14°; rain; Feels like +18°; Pressure 737 millimeters of mercury; Humidity 76%; Wind speed 3.2 Meters per second, northerly;

  • 30 September, Wednesday. morning, 24°; night, 14°; ; Feels like +17°; Pressure 737 millimeters of mercury; Humidity 72%; Wind speed 3 Meters per second, northerly;

  • 1 October, Thursday. morning, 24°; night, 13°; ; Feels like +18°; Pressure 737 millimeters of mercury; Humidity 71%; Wind speed 3 Meters per second, northerly;

  • 2 October, Friday. morning, 24°; night, 14°; ; Feels like +18°; Pressure 738 millimeters of mercury; Humidity 71%; Wind speed 2.7 Meters per second, north-westerly;

  • 3 October, Saturday. morning, 24°; night, 14°; ; Feels like +18°; Pressure 738 millimeters of mercury; Humidity 73%; Wind speed 2.9 Meters per second, westerly;

September in Knoxville is the sunniest month of the year. In September, the weather in Knoxville is typically warm. The average daily high in September is 23 degrees above zero. On average, Knoxville has 14 sunny, 9 rainy, and 6 cloudy days in September. September along with {{month_nom}} is considered the most comfortable time to visit Knoxville.