The astronomy forecasts are generated by TWO using data from the high resolution GFS forecasting model. The forecasts will usually update two times each day. Enter your full postcode and press forecast to generate the graphical forecasts.

Information

Cloud cover

The cloud cover graph plots the overall expected percentage of cloud cover at all levels.

Surface pressure

Higher pressure tends to indicate more settled weather conditions. This can sometimes lead to atmospheric conditions being steadier, but hazier. This can be good for observing the moon and the planets. Lower pressure often indicates unsettled conditions. This can sometimes lead to unsteady, but very clear atmospheric conditions providing good conditions for deep sky observation.

Wind speed

Higher wind speeds can create unsteady atmospheric conditions making conditions less suitable for planetary observation.