Storm (Rating: 6/10) is a recent entry on the scene, and like Netatmo, it aims to give you a lot of information with a limited footprint. While the hardware is larger than Netatmo’s, it’s more discreet than AcuRite and Ambient, looking a bit like a bird feeder and meant to be mounted on a pole (not included) somewhere in your room. yard or on your roof. The system also requires an indoor module that relays sensor data to your Wi-Fi network, but this module does not provide any information about the indoor climate. Setup is pretty straightforward, at least compared to most other weather stations on the market.
Tempest provides a wealth of information including temperature, humidity, barometric pressure, wind speed / direction, light impact information, and UV data. The system also measures rain activity, but it does so without a traditional rain collection funnel. Instead, Tempest uses a haptic rain sensor, essentially measuring when and how hard water droplets hit the top of the device. It’s surprisingly precise and much less messy than the classic rain sensor – and it doesn’t need to be cleaned periodically.
Tempest’s temperature readings tend to be a bit high, and its weather forecast was the worst in this roundup, missing an average of 5.2 degrees. Tempest’s forecast tends to be pretty wild, including one that assumed the summit would be 9 degrees lower than Netatmo’s and one that predicted a 30% chance of ‘mixed winter’ precipitation on a day it didn’t. there was no rain and we had a temperature of 40 degrees. low. It’s odd because forecasting is supposed to be Tempest’s strong suit, using machine learning to “dramatically improve forecasting over time,” according to the company. I’ve been testing the device for several months and still see some pretty good predictions on otherwise mundane days.
My other problem with Tempest is that its app isn’t as useful as it could be. The real-time views and forecasts on the main page are intuitive, but if you want to dive into history, you only see a digital datasheet of each day’s weather. Going back in time means flipping through page after page, one day at a time, until you find the day that interests you, without any long-term charts or graphs.
Overall, I like Tempest despite its flaws, not least because of the hardware, but $ 329 is asking a lot for the kit. With an updated app and some AI tweaks, I might be inclined to revise my rating up on the line.