The heat and solar energy from the Sun keep evaporating water from oceans and lakes and the air in the atmosphere moving (primarily due to convection), which creates changes in weather. The "Coriolis" effect causes large weather systems to rotate.
The turbulence creates different pressure zones and fronts.
Weather or No was created in 1896.
Weather with You was created in 1991.
Weather Underground - weather service - was created in 1995.
Weather Underground was created in 1969.
Old Weather was created in 2010.
The Weather Network was created in 1988.
Weather Proof was created in 2009.
The Weather of the Future was created in 2010.
A.M. Weather was created in 1978.
If the Weather Permits was created in 2003.
The Weather Inside was created in 1988.
The Weather Cast was created in 2010.