Perhaps related to the current KNMI API-issue, which results in no weather data being received.
Also see:
We are currently in negotiations with meteoserver to reactivate the unlimited apikey for knmi and kmi app. We apologize for the inconvenience. We are making every effort that the app will be back to working properly soon.
Bij mij is op 3 september de laatste keer de KNMI-app herstart vanwege de nulwaarden. Betekent dit dat de app gefixt is, @LRvdLinden?
It’s starting to look like that. I think possibly due to a firmware update. We have gone through the entire api with weerlive and there were no errors among them. Meanwhile, we continue to monitor the behavior of the app.
Ik krijg geen kaarten te zien als ik deze app installeer en ik krijg een 404 op de server status. Kan het dus zijn dat deze (nog) niet weer werkt en er nog geen overeenkomst over de API is?
Ik krijg de indruk dat de appwel werkt, maar de neerslag kans voor vandaag en komende dagen staat altijd op 0, anders dan de KNMI app op iOS.
Does somebody know if it’s possible to get rain prediction in amount in the app? I only found a rain prediction in percentage. Would be awesome if i could see the amount for a day on my dashboard 
Embed nou all KNMI weather (alarm) images from https://embedme.nl
Just copy the code, pick out the image url and placed it into your dashboard!
Late reply, but I was also looking for a stookwijzer solution. With the current ease of AI, I had a homey script written that based on your postal code updates variables via the atlas online database that tell me if I’m allowed to light my fire in the next four time blocks. Let me now if your interested in the script.
Still zero values for expected forecast. Any ETA for a solution? Other values look ok. Need precipitation forecast for watering my garden. Other sources like Buiten Radar or Open Weather only have a short window for their forecast.
App not getting new KNMI data since 21:38 jan 8
Both app and homey restarted.
Have a virtual device off a variable updated from knmi temperature and a graph of that flatlined never past months until last night.
Any news on why the precipitation data goes awol every day or 3? Restarting the app does not help.
Anything that I can do to fix it?
Thanks
I am specifically referring to the Precipitation Tomorrow value. That cannot be 5 days old, right?
If no precipitation is expected the next day for 5 days, then the last change was 5 days ago.
ah ok, that is not how my mind works (tomorrow 5 days ago is 4 days ago), but I do now understand. I was alarmed by a constant KNMI is going offline warnings on my timeline. I know that I can switch it off but that is like killing the check engine light in your car to fix a problem with the engine
Thats a bug. Switch off knmi notifications.
Update 4.1.0 - 4.1.6
New Test version!
New
Expanded Weather Data & API Improvements: This update introduces several new weather data fields and structural improvements throughout the app. Wind direction is now used directly from the API for more accurate readings, and wind speed in knots has been added to live weather, daily forecasts, and hourly forecasts.
Manual Data Refresh Button Added: A new capability button has been added to manually fetch the latest KNMI/weather data instantly, alongside the automatic 10-minute refresh cycle.
Timestamps Added Across Forecasts: Live weather data and hourly forecasts now include timestamps, making it easier to track exactly when weather information was updated.
Weather Icons Expanded: Weather condition images/icons are now available in live weather, daily forecasts, and hourly forecasts for a more visual experience throughout the app.
Improved Solar Radiation Naming: The hourly forecast field gr has been renamed to solarRadiation to better reflect its actual meaning — global radiation in W/m² instead of sunshine percentage.
Forecast Image Naming Improvements: Fields such as expectedTodayRecap have been renamed to expectedTodayImage (including the following forecast days as well), because these values always represented icon/image codes rather than textual summaries.
New Capabilities & Data Fields Added:
- last data request
- timestamp
- image
- wind_speed_knots
- fetch_new_data_button
- expected_today_image
- expected_today_wind_speed_knots
- expected_tomorrow_image
- expected_tomorrow_wind_speed_knots
- expected_day_after_tomorrow_image
- expected_day_after_tomorrow_wind_speed_knots
- expected_day4_image
- expected_day4_wind_speed_knots
- expected_day5_image
- expected_day5_wind_speed_knots
Improvement
Under-the-Hood Enhancements : In this version of KNMI , we’ve made some minor improvements to enhance overall performance and logging for the best user experience and logging. We’re continuously working behind the scenes to fine-tune the app for the best possible user experience. Your feedback is invaluable! If you encounter any issues or have suggestions, feel free to reach out through our support channels.
Download the new version in the Homey App Store!
Enjoy the latest version of KNMI App with small improvements under the hood, ensuring a smoother experience for all users! 
Disclaimer
This app is a labor of love, provided on a best-effort basis. No rights can be derived from its use. Data made possible by weerlive.nl
If you find any issues, send a diagnostic report
Note: Before sending a report make sure to reproduce the issue so the issue will be visible in the report
Via Homey Mobile app:
More - apps - KNMI - settings wheel right top - send diagnostic report (put your email in the input field to make it easier)Via Homey Webapp:
Settings wheel bottom left - Select KNMI - Click on send diagnostic report
You can install this version by clicking the link above and press install (do not remove the app, only press install)
Don’t want to be part of a test version? Install the live version → KNMI | Homey
Contribution
If you appreciate this app, fuel future development with a PayPal contribution, buy a round with iDeal or Bunq.me, or become a true supporter on Patreon. Your support keeps the magic alive! 
I can’t see the new fields for day 1, 2 and 3. Also fields image and wind_speed_knots are not visible.
In v4.1 I have these fields:
"capabilities": [
"city",
"current_temp",
"feel_temp",
"recap",
"humidity",
"wind_direction",
"wind_direction_degrees",
"wind_speed_m_s",
"wind_force",
"wind_speed_k_m_h",
"air_pressure",
"air_pressure_m_m_h_g",
"dew_point",
"sight",
"expected",
"sun_up",
"sun_down",
"expected_today_max_temp",
"expected_today_min_temp",
"expected_today_wind_force",
"expected_today_wind_speed_m_s",
"expected_today_wind_speed_k_m_h",
"expected_today_wind_direction",
"expected_today_wind_direction_degrees",
"expected_today_precipitation",
"expected_today_sunshine",
"expected_tomorrow_max_temp",
"expected_tomorrow_min_temp",
"expected_tomorrow_wind_force",
"expected_tomorrow_wind_speed_m_s",
"expected_tomorrow_wind_speed_k_m_h",
"expected_tomorrow_wind_direction",
"expected_tomorrow_wind_direction_degrees",
"expected_tomorrow_precipitation",
"expected_tomorrow_sunshine",
"expected_day_after_tomorrow_max_temp",
"expected_day_after_tomorrow_min_temp",
"expected_day_after_tomorrow_wind_force",
"expected_day_after_tomorrow_wind_speed_m_s",
"expected_day_after_tomorrow_wind_speed_k_m_h",
"expected_day_after_tomorrow_wind_direction",
"expected_day_after_tomorrow_wind_direction_degrees",
"expected_day_after_tomorrow_precipitation",
"expected_day_after_tomorrow_sunshine",
"current_weather_message",
"current_weather_alarm",
"current_weather_title",
"next_date_time_alarm",
"next_time_alarm",
"gr_sun",
"next_weather_alarm",
"alarm_actief",
"time",
"expected_tomorrow_recap",
"expected_day4_max_temp",
"expected_day5_sunshine",
"expected_day5_precipitation",
"expected_day5_wind_speed_k_m_h",
"expected_day5_wind_direction_degrees",
"expected_day5_wind_direction",
"expected_day4_min_temp",
"expected_day4_wind_force",
"expected_day4_wind_speed_m_s",
"expected_day4_wind_speed_k_m_h",
"expected_day4_wind_direction",
"expected_day4_wind_direction_degrees",
"expected_day4_precipitation",
"expected_day4_sunshine",
"expected_day5_max_temp",
"expected_day5_min_temp",
"expected_day5_wind_force",
"expected_day5_wind_speed_m_s",
"fetch_new_data_button",
"expected_day4_wind_speed_knots",
"expected_day5_image",
"timestamp",
"expected_day4_image",
"expected_day5_wind_speed_knots"
]
Working on it
