Some numbers that may help maybe not.  I adjust fairly well after two weeks we stay with a dew pt above 70 for most of the summer.  You will feel great in the winter.

Dew Points                                                      Humidity + Temp

75 + Extremely uncomfortable                           150+ Adjust for slower pace just focus on finishing

70-74 Very Humid and uncomfortable                 130-150 Adjust for slower speed especialy longer

65-69 Somewhat uncomfortable                         120-130 OK for fast 10K adjust for longer

60-64 OK for most                                            100-120 Not Ideal okay for fast

                                                                       Below 100 IDEAL                             

I'm new and slow so take it for what it's worth. So far great advice. I run in SE Texas (Usually I'm visiting in the Ft Laud area right now) and most of my runs are temps between 75 (heaven) and 85 with humidity that rarely drops below 90% but I'd guess almost all are above 97%. It's hard sometimes to even get going when both numbers are at the high end. (Last year when I tried this we were having lots of 100+ degrees days and rarely had a night that dropped below 85 by the time I took my midnight run. So I've done a lot of looking into this. The things for your neck or head (I'm thinking of trying one on both. LOL) do help me. I also wet my head with cool water before I start. Clothes that wick I'm not so sure about. They just can't wick that fast, but maybe I just sweat that much. I get thirsty even though I'm only up to about 2 miles in the time limit (W8) so I've always carried a small water bottle with me. I freeze half a bottle and then fill it right before I do my stretches.  When I start to get really wilted feeling I pour some of the water on my head and sometimes my feet.  But I wear barefoot running shoes so the feet thing likely won’t work for most people. I get hot feet.   But mostly I accept that the heat and humidity means that if I want to go the distance I can’t push myself to run faster than it lets me comfortably.  Everything I’ve read says that in hot humid weather you have to slow down.  I look forward to seeing if it’s true that when the weather does break and cool down that I will naturally speed up some.  Hope you get some help from all the wonderful advice you've gotten so far.