Setting Up Weather Alerts

Weather alerts notify you the moment your station's data crosses a threshold you care about — a freezing temperature, a heavy rain rate, a strong gust. This article walks through creating and managing them.

Note: Weather alerts are a Premium feature, currently available on the mobile app only.

Looking for official warnings? Warnings issued by national weather services appear on your dashboard on their own, with nothing to set up — see Official Weather Warnings.

Open the side menu and tap My alerts (bell icon). You'll see your alerts grouped by station.

You don't need a SmartMixin account to use alerts: with a Premium subscription bought in the app on this device (App Store or Google Play), you can create them without signing in. They're then kept on this device only, and the My alerts screen says so: Your alerts are saved to this device only. Log in to attach them to your account.

To keep them with your account, tap Log in on that notice and sign in or create an account. Your alerts then move to your account, and you'll find them on any phone or tablet where you sign in. Until you do, another device won't show them.

If you sign out later, this device is no longer linked to your account, so your alerts stop reaching it until you sign in again.

Note: Alerts on a Netatmo station always need an account, because connecting Netatmo does.

1. From the My alerts screen, tap Add alert
2. Pick a station — alerts are tied to a single station
3. Name your alert — give it a label that will appear in the notification (e.g., "Frost warning — garden")
4. Add at least one condition:
   • Pick a metric (Temperature, Precipitation, Wind, etc.)
   • Pick the condition (greater than / less than)
   • Set the threshold with the slider, or type it, in your preferred unit. A typed value outside the slider's range shows the allowed range under the box, and Add stays disabled until the value is back in range
5. (Optional) Add more conditions — when multiple conditions are set, all must be true at the same time for the alert to fire
6. Tap Create alert

You'll get a confirmation toast and return to the list.

If notifications aren't on yet and your phone can still ask for them, the first alert you create offers them: tap Turn on notifications, then allow them when your phone asks, or tap Not Now.

Changing station: if you pick another station after adding conditions, the conditions it supports are kept and the others are removed. A message lists the ones that were removed.

You can also start from the station you're looking at, with that station already picked:

• On the station's dashboard, tap the round + button at the bottom right, then Add alert
• On the station's More tab, the Alerts for this station section lists the alerts you've set on it. Tap Add alert below the list to create one

Signed out, both are there for weather stations only, and creating an alert needs a Premium subscription bought in the app on this device (see "Alerts Without an Account" above). For a Netatmo station, sign in first. The Add alert buttons appear only for a station you can pick on the alert form, where you can still pick another station.

You can set thresholds on any of the following sensors, provided your station reports them:

• Temperature
• Humidity
• Pressure
• Wind speed and gust speed
• Precipitation — choose from:
  • Hourly precipitation (last 60 minutes)
  • Rain rate (instantaneous)
  • Daily precipitation (total since midnight)
• UV index
• Solar radiation
• Visibility
• Air quality (AQI) and PM 1 / PM 2.5 / PM 10
• CO2 and Noise — measured indoors, by the base station and indoor modules of a Netatmo station (see "Alerts on a Netatmo Station" below); an indoor add-on sensor can offer CO2 too
• Soil moisture, leaf wetness and more from your add-on sensors — see the next section

Tip: If a metric isn't in the picker, your station doesn't report it. On a Netatmo station, the list depends on the module you picked.

If your station has add-on sensors — soil moisture probes, leaf wetness sensors, extra temperature or humidity channels, air quality sensors — or reports an indoor reading, you can set an alert on each sensor separately. Keep your soil from drying out, or know when the greenhouse gets too hot, without waiting for the station's own readings to move.

1. Add a condition to an alert as usual
2. At the top of the form, under Which sensor would you like to be alerted for?, keep Outdoor for your station's own sensors, or pick one of your add-on sensors. Each one appears under the name you gave it on your dashboard — or under its channel, such as Ch3, if you haven't named it — with its type underneath. A named sensor shows its channel there too, for example Soil sensors · Ch3
3. Pick the reading, the condition and the threshold, as for any other alert

Depending on the sensor type, you can alert on:

In your alert list, the condition starts with the sensor's name — for example Tomato bed: Soil moisture less than 25% threshold — and the notification names the sensor too.

Note: The sensor field only appears for a station connected to your own account that currently reports at least one add-on sensor, not for favourites or stations shared with you. It needs SmartMixin 1.61 or later. A Netatmo station doesn't use this field: you pick one of its modules instead, as described in the next section.

If you've connected a Netatmo weather station, its alerts have their own tab: in My alerts, open the Netatmo Weather tab and add an alert as usual. Each condition starts with a module, picked under Which module would you like to be alerted for? Your modules appear under the names they have in the Netatmo app, and each one offers the readings it measures:

Each additional indoor module is listed on its own, so you can watch the CO2 in the bedroom separately from the living room.

For a Netatmo favourite or a station shared with you, only the outdoor module, the wind gauge, the rain gauge and the base station's Pressure are offered: indoor readings stay private to the station's owner.

Sometimes a reading goes missing — a flat battery, a probe or module out of radio range, or a station that's offline. This applies to any reading: your station's own sensors, an add-on sensor or a Netatmo module. A condition whose sensor sends no reading counts as unknown, neither met nor not met:

• The alert can't go off while that sensor is silent, even if all its other conditions are met
• An alert that has already gone off stays as it is: it isn't sent again when the sensor comes back and the condition is still met
• It resets only once a reading shows that one of its conditions is no longer met — from then on, it can go off again

When you open a condition on an add-on sensor that has gone silent, the app shows This sensor isn't reporting right now. The alert resumes when it does. You can still change the condition or the threshold in the meantime; you just can't switch it to another sensor until this one is back.

If a whole station no longer appears in your weather-service account, usually because you replaced it, its alerts stay in your list but can't go off. The alert list and the alert editor say This station no longer reports, so this alert can't trigger. Create the alerts again on your new station: see Replacing Your Weather Station Hardware.

Triggered alerts arrive as push notifications on your phone. Make sure SmartMixin has notification permission and that the Alerts notification channel isn't muted in your system settings.

The first time you open My alerts, if notifications aren't on yet and your phone can still ask for them, the app says why your alerts need them and offers Turn on notifications. Your phone's own permission prompt comes only after you tap it. If you tap Not Now, the app doesn't ask again on that screen: the list shows a reminder instead, with a Turn on notifications button.

If your phone no longer asks — you declined before, or notifications are off in its settings — the reminder offers Open Settings instead: turn notifications on there for SmartMixin, then come back to the app.

From My alerts, or from the Alerts for this station section of a station's More tab:

• Tap the pencil on an alert to edit its name, conditions, or thresholds
• Tap a weather alert to open its Alert history: the times it went off
• Swipe or use the menu to delete an alert you no longer need

Use multiple conditions when you want to narrow when the alert fires. Examples:

• Temperature < 0 °C AND Wind speed > 20 km/h — frost-with-wind warning
• Rain rate > 5 mm/h AND Daily precipitation > 30 mm — heavy ongoing rainfall
• Humidity > 80% AND Temperature > 25 °C — uncomfortable mugginess

All conditions must hold simultaneously to trigger the alert.

On supported stations, you can set up an alert that sends a summary after each rain storm ends — total rainfall, how long it lasted, and the peak intensity — instead of firing on a threshold.

1. Add a condition and pick Precipitation
2. Choose Post-storm summary
3. Create the alert

A post-storm summary is event-triggered, so there's no threshold to set. It also can't be combined with other conditions — it's the only condition on its alert. If you don't see Post-storm summary in the list, your station doesn't support it yet.

• Check that notifications are allowed for SmartMixin in your phone's settings
• If you tapped Not Now when the app offered notifications, tap Turn on notifications on the reminder in My alerts
• On Android, verify the Alerts notification channel isn't blocked
• Confirm the station is online and reporting data — see Troubleshooting Common Issues
• Some Android devices aggressively kill background apps; add SmartMixin to your battery-optimization exceptions

On iPhone, if alerts arrive without a sound, open Settings > Notifications > SmartMixin and turn on Sounds. iPhones that allowed notifications before version 1.64 may need this once: iOS doesn't ask a second time.

• Open the alert and double-check the threshold and operator (> vs <)
• If you used multiple conditions, remember all must be true at once
• Compare your threshold to the live readings on the dashboard — the condition might simply not have occurred yet
• Check that the sensor or module behind each condition is still reporting: the alert can't go off while one of them sends nothing. And an alert that has already gone off isn't sent again until one of its conditions is clearly no longer met — see "When a Sensor Stops Reporting" above

• The field only appears when your station currently reports at least one add-on sensor — check that the sensor shows a reading on your dashboard
• It's only offered for stations connected to your own account, not for favourites or stations shared with you
• A Netatmo station doesn't use this field: in the Netatmo Weather tab, each condition asks Which module would you like to be alerted for? instead
• Update SmartMixin to version 1.61 or later

Alerts require an active Premium subscription. See Premium Features and Managing Your Subscription to upgrade.

• What's included with Premium
• Android ongoing notification
• Troubleshooting common issues
• Official weather warnings
• Getting Started with SmartMixin