Fall officially begins Wednesday at 3:21 pm. This is the exact moment in earth's rotation around the sun between the winter and summer solstice. At this moment, the sun's rays are directly over the equator.
As far as our weather is concerned, it will feel more like summer on Wednesday. Winds pick up ahead of a cold front, with widespread cloud cover and a few sprinkles. Temperatures are expected to climb into the mid to upper 70s, which is about 10 degrees above average for this time of year. The humidity is expected to be as high as your typically humid summer day, with dew points in the mid 60s. Wednesday night will feel mild, with overnight lows only in the upper 60s.
The weather looks to change on Thursday, as a slow moving cold front arrives from the west. Rain comes down heavy at times late in the day and especially Thursday night. Some rumbles of thunder are also possible. A general 1" of rain is expected, with some spots getting up to 1.5". Localized flooding is possible, especially in low lying areas and poor drainage areas.
The weather will turn seasonably cooler as we head into the end of the week and weekend. High temperatures are expected to be in the mid to upper 60s with overnight lows in the upper 40s to low 50s. This is much more typical for the time of year.