Description
Product Description
More than hardware, the meticulously designed Tempest Weather System leverages our patented Nearcast Technology, a combination of curated weather data sets, machine learning, and state-of-the-art modeling capabilities. The result is a more accurate local forecast that only gets better over time. A revolutionary design with no moving parts, nearly zero maintenance, instant online data, and a rich API powering a growing list of third-party applications. Save time and money with smart home integrations, and protect your family and property with instant alerts to warn of rain, lightning, wind, and much more. Install the Tempest home weather system in less than five minutes, and it will do the rest!
- Outdoor temp, humidity, dew point, feels like temp.
- Wind speed, wind direction, average & gusts
- Lightning activity (strikes and distance up to 25 miles)
- Rain onset, intensity, duration, and accumulation
- Wind chill, wet bulb temp, DeltaT, Air Density
- UV index, brightness, solar radiation
- Auto-calibration with Continuous Learning technology
- Long-range wireless connectivity (1000ft)
- iOS and Android apps & personal weather page
- Works with Alexa, IFTTT, and more
- Direct Rachio integration (code available via WeatherFlow support)
A Better Forecast For Your Location
Our patented Nearcast Technology uses machine learning to compare your live station data against trusted data sources to ensure your station never drifts out of calibration. AI and data science techniques are used to improve the forecast for your exact location. No more guessing!
A Weather Station So Advanced, It’s Simple
A revolutionary design with no moving parts, nearly zero maintenance, instant online data, a personal webpage, and a rich API powering a growing list of third-party applications. Fully solar-powered, install the Tempest home weather system in less than five minutes.
Turn Your Smart Home Into a Genius
Use your weather data to save on heating and cooling, optimize your smart sprinkler controller, alert your family to approaching storms, and more. Tempest is compatible with Rachio, IFTTT, Siri, Alexa, Homey, and many more.
A Leader in the Private Weather Tech Industry
Tempest’s team of scientists, forecasters, and developers specialize in weather networks, data science, and forecast modeling. Our weather technology is used by the National Weather Service, Coast Guard, Defense Threat Reduction Agency, and more.
Here are just some of the ways to use weather observation and forecast data from the Tempest System with your smart home:
- Adjust your irrigation schedule based on the rain that’s fallen… or the rain that’s forecast to fall
- Turn on attic exhaust fans if the temperature is high
- Turn on ceiling fans if the temperature is high
- Turn on whole house attic fan & turn off the AC if the outside temperature is cooler than inside
- Turn on outside accent lighting when light level falls below a set limit
- Turn on an engine block heater on work days when the outside temperature is close to freezing
- Adjust heating/cooling levels based on the temperature and humidity forecast
- Adjust indoor lighting levels based on outdoor sunlight levels
- Adjust awning and shade positions based on ambient light, solar radiation, wind, etc
In addition to direct integration with your smart home systems, there’s also a growing list of devices and software that let you do all sorts of things with the data from your Tempest System. The WeatherFlow Tempest System exposes a collection of self-service APIs and documentation that make it easy for developers to build apps and integrations that access data on behalf of a Tempest station owner. With both remote access (via REST & Web Socket) and local access (via Bluetooth Low Energy, UDP Broadcast).
Tempest Home Weather System Specs
Air Temperature | -40°F to 140° F |
Relative Humidity | 0-100% |
Atmospheric Pressure | Up to 1100 mbar |
Lightning Activity | Detects lightning 0 to 40 kilometers away |
Wind Speed | 0 to 100 mph |
Wind Direction | 0 to 359° |
Ambient Light | 1 to 128 kLUX |
UV Index | 0 to 14 Index |
Solar Irradiance | 0 to 1900 W/m2 |
Rain Onset | First Drops |
Rain Duration & Accumulation | Daily total |
Mount | Adjustable pole mount or screw mount |
Wireless | Up to 1000 ft |
Power | Solar Powered |
Jonathan B. –
Really simple to setup, no moving parts do hopefully it will last well.
Simon P –
I’m a weather freak and simply love this weather station. I set it up and added smart display using the old iPad. Looks sleek. The system is more then adequate to my needs. As I’m living in the city wind measurements won’t be 100 spot on but give a rough idea what’s going on. The rain gauge is great! The home hub is nice and small and the sensor looks modern and futuristic. Love it! Worth the price if u into weather or your work depends on it.
Larry 1946 –
Excellent home weather station unit. am very pleased with its performance. Description is accurate and true. Recommended Seller.
richie –
If you’re looking for a weather station that gives you Radar Perciption in the app and also shows it in the menu then you’re in for a big disappointment, unless you live in the states, I was having trouble getting this part of the menu to work, so I contacted tempest forum only to be told this part of the menu dose not work outside the states, this is the most important part of the app I was looking for, if its not an issue for you then this is a great bit of kit and we’ll worth the money, I’ve written to tempest to find out if this part of the app is going to be available in the UK, if they say no then it will be returned,Update ive recently found that due to licenceing and cost there’s nothing on the cards for this in the UK
C M HANDLEY –
I came across this whilst browsing weather stations on Amazon. I had been considering a high end solution, but couldn’t justify the cost, the Tempest being at the top end of what I wanted to spend. Some research suggested this system is well resolved and whilst browsing the Tempest webpages I came across a voucher which saved 10% by buying direct with free shipping. The actual unit was shipped from Amazon.Some points for prospective buyers.It comes with everything you need to get started. The USB C adaptor is three pin.If mounting on a pole, you’ll need a 33mm diameter. I bought a 33mm/6′ galvanised pole and bracket on Amazon.Set up is very easy, you’ll need to download the Tempest App to you digital device.The app/webpage and integration with other weather reporting is very good.Wifi range is good, mine is about 100m away across a field with trees/barns between.
R. Willson –
I’ve had 2 of these, both have had sensor failures. The first time (about a year of working) I shipped the unit back under guarantee and received a replacement.The replacement has now got several sensor failures after 18 months. I can’t be bothered to sort out another replacement – there seems to be a quality issue with their components.The phone app is great but otherwise I couldn’t recommend this item at this price point at all.
Phill –
I was very disappointed to find this item shipped with the wrong USB-C 1000mA PSU for the UK and that I’ve now had to purchase an additional USB-C power supply for the wireless hub. There’s no mention of this on the seller’s page.Other than this the unit works as described, easy to set up and follow along with the App.Easy to get online, (make public) on both the WeatherFlow (tempestwx.com) and Weather Underground (wunderground.com) websites.Installation: I bought a 1.8m (6ft) steel TV aerial mast with an outside diameter of 32mm (1,1/4”) which was just the right size for the pole mount on the base of the Tempest Weather Station. This isn’t a subject that’s covered too well online, so I mention it here to help others.
Amazon Customer –
Bought my first one of these about 3 years ago – seemed accurate apart from spurious rainfall measurements in strong winds, believed to be due to mount vibration. The claimed unit-to-hub range is optimistic in less than perfect line of sight conditions. Unit was replaced after failure, now on my third but it is now failing after 3 years. Tempest’s response is to offer a 50% discount on a replacement unit. My previous Davis station lasted 10 years and that is what I will be replacing it with.
Joe Preiditsch –
Works well, easy installation
We mounted this on our fence and it’s been providing us with up to date weather info. We hosted out home assistant instance to use the weather, lux and other readings to automate our climate and light.Expensive but easy to set up and with no moving parts I expect it to be reliable.
A. Nonymous –
Best Consumer Priced Weather Station I’ve Owned
June 2024This is an update to my several reviews below, spanning the three years I have owned and used a Tempest Weather station. It is probably best to read the earliest (bottom) review first to gain a full view of my experience.Sadly, in late Fall of 2023 my Tempest Weather station began exhibiting several problems, including intermittent power loss, odd (or no) measurements from certain sensors, and general dysfunction which became progressively worse as the seasonal temperatures became lower and the days shorter. Eventually the unit was no longer providing useful information. I ignored the issue for several months as I was busy with other matters. Eventually I contacted Weatherflow support and was astonished at the speed of response and the interest they demonstrated in fixing the problem. First the support agent checked the data my system had been sending and we agreed on an approximate date the dysfunction became near total. She then compared that date to my purchase date, determined that I was still under warranty when it happened, and immediately offered to send a brand new unit at no charge. Wow! The loss of power issue was determined to be most likely a user- caused problem (that’s me) and I was asked to pay for a replacement hub, which was more than fair. The new weather station and hub arrived quickly and I installed them back in their mounts. Once the new unit was online and sending regular data streams, Tempest support merged the old stored data records with the new data records being produced by the replacement machine. I now have a fully functioning weather station and cumulative data records going all the way back to the first day of installation of the original device (minus those days when it was no longer capturing data.) So, the less than perfect news is that the original device had a life span of about 2.5 years before it ceased being useful due to malfunction. The great news is that Weatherflow not only stood behind their product, they were incredibly helpful while doing so. I’m leaving my review at 5 stars, and appending this update to reflect events as they have occurred. I want to commend Weatherflow again for producing the best consumer priced weather station I’ve ever owned, and for standing behind their product when something went wrong. This is a quality company, with quality employees and I strongly endorse their offering.June 2022This is an update to my review below, which was originally posted in July of 2021. All of the comments I made in the original review below are still true – except – the accuracy of the rain gain has improved greatly over the past year, just as the Tempest folks said it would. The haptic rain guage collects local data, which is then filtered through AI and compared to other nearby weather data collection devices and systems. After midnight each night, the localized data collected by your Tempest is adjusted to reflect the broader dataset collected from other nearby devices and systems. The post-midnight adjusted rain data is remarkably similar to the two analog rain gauges I have near where my Tempest device is located. It took several months for the accuracy to improve (just like tempest said it would.) It is now nearly identical to the analog gauge measurements. To understand how Tempest heuristic AI works, see this page from their website: https://weatherflow.com/tempest-forecasting/One year in, I still view my Tempest weather station as (by far) the best of the weather systems priced under $400 that I’ve owned over the bast two decades.Original review below, posted in July 2021:The Tempest Weather System is the most recent of approximately a half dozen consumer priced weather stations that I have owned over the past 20 years. The two issues that are paramount for me are accuracy and durability. The latter issue (durability) is the usual reason for looking into alternatives as 2 – 3 years seems to be about the norm before the earlier systems I’ve purchased for $400 or less tend to break down. They usually do not fail all at once, but instead start losing selective components one at a time until the overall unit ceases to be useful.Ease of system setup and the ability to remain connected to both the local WI-FI setup as well as the internet are also important. The Tempest was extraordinary simple to setup and was operational within minutes of being taken out of the box. It has never become disconnected from either my mesh WI-FI setup or the internet since going operational, even though the unit is installed above a metal roof at least 20 meters from the closest WI-FI relay point.The unit is unusual looking and operates using non-traditional technology for several of its data captures (as can be read about on the manufacturer’s website.) So far the accuracy as compared to several onsite analog devices is very high. The haptic rain gauge sometimes reads more rain than an analog gauge placed within a few feet. The AI based correction that occurs each night is a bit aggressive and often over-corrects so that the final rain tally is lower than what analog gauge is showing, although the ratio of difference is lessening over time, which is what the manufacturer indicates would occur as the heuristic AI does its magic. On balance, I’d put the overall accuracy of the combined measurements reported from the Tempest system as superior to any of the La Crosse, AccuRite, Davis or Ambient systems I have owned. The Tempest app also displays the reported data in the best manner of any of the above (which of course is a personal opinion.)It is impossible to know for now how durable the Tempest system will prove to be as I’ve only owned it for two months. Like most consumer technology, the price of weather systems has been decreasing for at least a decade. If the Tempest also proves to be durable it will be a significant improvement over its rivals.In my opinion and for my uses, the Tempest Weather system represents the best value currently available for consumer weather systems under $400. I highly recommend it.