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      Heat Advisory
      until 7:00 PM CDT
      Elev 623 ft, 38.894 °N 90.192 °W

      Alton, IL

      Alton Station78°

      Summary

      Temperature (°F)MaxAverageMin
      Max Temperature9386.2577
      Avg Temperature81.3874.568.26
      Min Temperature776659
      Precipitation (in)MaxAverageMinSum
      Precipitation0.080.0100.09
      Dew Point (°F)MaxAverageMin
      Dew Point68.1963.7453.74
      Wind (mph)MaxAverageMin
      Wind1511.759
      Gust Wind212017
      Sea Level Pressure (in)MaxAverageMin
      Sea Level Pressure29.5729.4529.3

      Daily Observations

      DateTemp High/LowDew Pt High/LowHumidityWindMax WindWind GustPressurePrecip.Condition
      9/8/2026 93 °F / 59 °F 68 °F / 57 °F 58 % 10 mph - 29.51 in 0 in
      9/9/2026 91 °F / 69 °F 70 °F / 64 °F 69 % 15 mph - 29.47 in 0 in
      9/10/2026 79 °F / 68 °F 72 °F / 66 °F 90 % 12 mph - 29.45 in 0.08 in
      9/11/2026 82 °F / 64 °F 72 °F / 64 °F 89 % 9 mph - 29.37 in 0.01 in
      9/12/2026 91 °F / 65 °F 72 °F / 64 °F 82 % 9 mph - 29.32 in 0 in
      9/13/2026 86 °F / 65 °F 68 °F / 51 °F 74 % 15 mph - 29.47 in 0 in
      9/14/2026 86 °F / 59 °F 61 °F / 52 °F 62 % 15 mph - 29.57 in 0 in
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