A personal weather station can cost anywhere from around $100 to over $1000, depending on the features and quality you want. For example, the most basic weather stations might just include a thermometer, hygrometer and barometer, while more expensive ones will also have things like an anemometer, rain gauge and wind vane. If you want your personal weather station to be able to send data wirelessly to your computer or smartphone, that will usually add to the cost as well.