Availability: In stock
The BMP280 sensor is an environmental sensor with temperature and barometric pressure. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI.
This sensor from Bosch has a range of 30 kPa - 110 kPa, (= 300 - 1100 hPa/mbar, 9 km - -500 m). It is a precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter accuracy.
More information is available on the website of Adafruit.