Thanks for pointing that out MegaMatch and CSN (I still can't spell it)! This weekend is looking like it will be hot hot hot!

One piece of software I use on my weather site is called WXSim, which is great program that imports data from various sources, including GFS and then "mashes" (sorry, unscientific term) with the data from my weather station and it makes pretty accurate forecast. It creates a bunch of CSV and other files that I then display as the forecast.

A part of this software is below is a screenshot for the next 9 days.

• Thin red line is what GFS forecasts the temperature to be and the thick red line is what the software forecast for my exact location temperature (400m altitude)
  
• Thin blue line is what GFS forecasts dewpoint to be and the thick blue line is what the software forecast for my exact location
  
• Purple line on Sunday and Wednesday is cloud cover percentage
  
• The bar graph at the bottom is precipitation
  

It is showing precipitation on Tuesday evening and into Wednesday.