Observing weather
Tonight's sky conditions
A practical observing forecast for tonight: cloud cover, rain risk, wind, humidity,
astronomy seeing, transparency, sunset, sunrise, light pollution and and also current aurora index.
The default location is Blackpool Cricket Club, but you can enter another observing site.
Tonight at a glance
Sunset to following sunriseCloud layers
Open-MeteoSunset, sunrise and darkness
Calculated from forecast locationLight pollution
ApproximateDefault site estimate: urban/suburban sky, approximately Bortle 6–7. Treat this as a guide rather than a live measurement; local LED lighting and haze can make the sky brighter.
Jet stream
External mapStrong upper-level winds often mean poor planetary seeing. This first version links out to a live jet-stream chart rather than trying to reproduce the full map locally.