Cooler Air, Then Cool Air
There's a huge difference between the 2 fronts we're dealing with over the next several days.
Near record highs will be possible Wednesday and again Thursday. The first front arrives Thursday afternoon, but the cooler air won't arrive until Friday. While it will be noticeably cooler, temperatures will still be near or even above average.
The bulk of the cooler air will stay well north of the state. That air mass will retreat this weekend allowing temperatures to move back into the mid and upper 80s. 90s will be possible once again this weekend, especially over southern Arkansas.
The data below is a model and not a forecast. The GFS from WeatherBell has the hot temperatures through Thursday. There is a noticeable cool down Friday, BUT that's STILL above average. You see the weekend warmup, then temperatures cool by the beginning of next week. A warm up follows later next week.
7 day rainfall looks bleak, but some rain will be possible later Sunday into early Monday.
The Climate Prediction Center guidance indicates a good chance for above average temperatures for the period October 9th through the 15th. Before you get upset, remember this... The average high keeps dropping through the fall. By the middle of October the average high is 76° and the average low is 53°. If temperatures are near 80 and lows in the 60s, this guidance will verify. Let's just hope temperatures don't go back into the 90s. At this time, I can't rule it out, but it seems like a low chance at this time.