Need an upgrade to that boring old thermometer outside the kitchen window? Adafruit put together a guide for a wonderfully compact little battery powered weather display.
The unit uses a small 2.4" touchscreen display and the Adafruit Feather development board alongside a 3D printed case. Once you have the materials collected together, you'll just need to set up a couple of Arduino libraries, then piece everything together. The end result is a surprisingly good looking little display that shows the current weather, date, time, and a four-day forecast. Head over to Adafruit for the full guide.