How to read this post

We've had a few weather-related posts recently, so I figured I'd continue the trend.  I noticed this fairly bizarre instructional link on the Yahoo Weather page.  Check out the field highlighted in red:

I'm not sure that someone who can't read the "Detailed Local Forecast" will be able to handle "How to Read This."  Out of morbid curiosity I followed the link, and found this helpful information:

What's in the text forecast?
The following information is available in the text forecasts provided by weather.com:

• alerts, if relevant
  
• basic forecast data for that day or night
  
• forecast data for five days from that day or night
  

Again, if "Clear to partly cloudy" is difficult to understand, I doubt this additional information will help.