Weather in August
August weather in
LaSalle,
Illinois showcases typical mid-summer features like lengthy days and a slightly cooler touch compared to
July. Nevertheless, August's temperatures still hover on the warmer side, reminiscent of the summer's heat. As summer begins to wane, the days grow slightly shorter, returning to approximately 13.8 hours. As August concludes,
September’s arrival signifies the beginning transition into fall.
Temperature
Upon the onset of August, LaSalle witnesses an average high-temperature of a still moderately hot 82.9°F (28.3°C), showing a close resemblance to the prior month. A stark contrast in day to night temperatures can be seen in August, with an average low-temperature of 61°F (16.1°C).
Daylight
In LaSalle, Illinois, the average length of the day in August is 13h and 47min.
On the first day of the month, sunrise is at 5:52 am and sunset at 8:12 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:30 pm CDT.