Optional online data · No API key required

Live Local Heat and Air Quality

Search for a city or allow browser location access. HeatSafe combines model-derived hourly weather and air-quality forecasts, displays their timestamps and sources, and can transfer the selected hours into the manual Ventilation Planner.

Ventilation Planner Indoor–Outdoor Comparator 24-Hour Plan

API deployment notice: this package is configured with Open-Meteo public endpoints for evaluation and non-commercial prototyping. Before a book-promotional or other commercial production launch, route requests through a properly licensed server-side proxy or a self-hosted data service. The manual HeatSafe tools do not depend on this external API.

CHOOSE A LOCATION

Search or use this device

City, town or postal code

FORECAST RANGE

Load hourly data

Hours to load

Current indoor temperature

°C

Used only when sending data to the Ventilation Planner.

Local smoke context

Cross-ventilation at home

WHAT “LIVE” MEANS HERE

Current model data, not an official sensor network.

Privacy: city search sends the search text to the location service. Device location is requested only after you press the button and grant browser permission.

Important: do not use this page as an emergency warning service. Follow official local heat, smoke and air-quality guidance.

Choose a location and load the forecast.

Hourly temperature and PM2.5

TemperaturePM2.5

Local time	Temperature	Humidity	Wind	Solar radiation	PM2.5	US AQI	European AQI	Dust

Data attribution and limits: Weather and air-quality values are model-derived. Weather and geocoding are provided through Open-Meteo; location results are based on GeoNames. Air-quality data is provided through Open-Meteo using CAMS ENSEMBLE and CAMS global/European forecasts.

Open-Meteo Weather Documentation Air Quality Documentation Geocoding Documentation