I use an Oregon Scientific
WMR968. It is more than just a thermometer. You can get a WMR968 for under $200.
I use it in combination with Virtual Weather Station software from
Ambient Weather. I then pump the data to a personal Weather Underground web page. I have several neighbors that look at my web site on a daily basis.
I have also added a couple of the Starck sensors to my setup. At $15 each I think the Starck sensors are a great deal even by themselves.
Maybe that is overkill for what you are looking for