You can add a weather and cloud layer on the google maps (=> version 2.16).
The weather layer will show current weather conditions from weather.com on your map. The name of cities, etc. on the map will disappear when this layer is shown.
{mosmap weather='1'}
The cloud layer only shows from zoomlevel 0 till 6.
{mosmap weathercloud='1'|zoom='5'}
The following parameters are available:
weather (0 or 1) - Enabling the weather layer will show current weather conditions from weather.com on your map.
weathercloud (0 or 1) - Enabling the cloud layer will add cloud coverage imagery to your map, visible at zoom levels 0 through 6.
weatherinfo (0or 1) - Suppress the rendering of info windows when weather icons are clicked.
weathertempunit - The units to use for temperature.
celsius
fahrenheit
weatherwindunit - The units to use for wind speed.