What does it take to have an online weather station? Not as much as you would think. The first station I had only cost about 70 dollars.! Now it cost about $98.00. It was a Bios, or sometimes branded Thermor.
This is the sensor for the one I have now. It is an Acurite 5 in 1
The Acu-rite 5-in-1 that I have is currently $140.00 on Walmart.com
I am using Weather-display software from weatherdisplay.com . Weather-display costs $60.00. You don’t have to use this , but it is great software with lots of power to do all sorts of things.