Your balcony is colder than the forecast says.

Balcony Plants is a free tool that turns your local weather forecast into plain-language care advice for the specific plants on your balcony: which ones are at risk tomorrow, and the one thing to do about each tonight. It is built for plants in pots on a balcony, not gardens or houseplants.

You tell it three things about your balcony: which way it faces, which floor you are on, and how windy it gets. It takes the public forecast for your area, works out how hot or cold it actually gets at your pots, and gives you a verdict for each plant plus the one fix that matters. No weather or gardening know-how needed on your end.

The first check is free, no payment and no catch. If you want daily verdicts for all your plants and danger alerts by email, there is a season pass for $9.99, paid once, that covers 24 months: two summers and two winters. It is not a subscription and it does not renew on its own.

No app to download and no account to start. It runs in your browser, and the first check works without signing up. You only set anything up if you decide to buy the season pass.

A normal weather app measures the air temperature in the shade, about two meters off the ground, so its number was never really about your pots. A plant-identifier app tells you what a plant is or gives generic care tips, but it does not know your balcony or what tomorrow's weather will do to it. Balcony Plants answers that one specific question.

Plant-care apps like Planta are built to help with every plant you own: a daily care schedule, plant ID, diagnosis, houseplants. Balcony Plants does one thing: it warns you before the weather hurts the plants on your balcony. You tell it four things (your city, which way the balcony faces, which floor you're on, and your plants), and it tells you what tomorrow's weather means for each pot. With the season pass, it emails you the day before one is in danger. No setup per plant, no daily tasks, and it works fine alongside a plant-care app.

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It is an estimate, not a guarantee. Balcony Plants reads your balcony from the forecast, it does not have a sensor sitting in your pots, so every number it gives you is a range rather than one exact figure. The point is to catch the risk early and tell you the one thing to do, not to promise a precise temperature.

It works anywhere your local hourly forecast is available, which is most of the world, because it builds on public weather data for your area. For plants it covers the common balcony container plants: herbs, leafy greens, peppers, tomatoes, and popular potted flowers and small shrubs, with more added over time. If something you grow is not in the list yet, it is on the to-do list.