The temperatures below Saturn's clouds are much higher than those at the top of the clouds. The planet gives off about 2 1/2 times as much heat as it receives from the Sun. Many astronomers believe that much of Saturn's internal heat comes from energy generated by the slow sinking of helium through the liquid hydrogen in the planet's interior.
The temperature at the top of Saturn's clouds averages -285° F (-175 °C). The core of Saturn is much hotter, estimated at 11,700 °C.
the answer to the coldest temperature on Saturn is -240 degrees Fahrenheit
the highest known temperature on saturn is 700 F
Saturns highest surface temperature is 1,982
Hottest: 102
Coldest -52
The surface temperature of Saturn at 1 bar is 134 Kelvin which equates to -139o Celsius
Saturn has no solid surface. It is several layers of gases and liquid metallic compounds. The temperature at the top of the clouds on Saturn's surface averages -285 degrees F.
The lowest surface temperature is Jupiter. 
The average temperature on Saturn is -288 degrees Fahrenheit, or -178 Celsius. Much of the planet's temperature variation is horizontal.
Venus has the highest surface temperature of all the planets.
Surface temperature? Saturn probably doesn't HAVE a "surface".
Saturn!!
95° Fahrenheit
The surface temperature of Saturn at 1 bar is 134 Kelvin which equates to -139o Celsius
Saturn has no solid surface. It is several layers of gases and liquid metallic compounds. The temperature at the top of the clouds on Saturn's surface averages -285 degrees F.
The lowest surface temperature is Jupiter. 
The average temperature on Saturn is -288 degrees Fahrenheit, or -178 Celsius. Much of the planet's temperature variation is horizontal.
Venus has the highest surface temperature of all the planets.
140 degrees Celsius
Blue
The average temperature on the surface of Europa (as in one of Saturn's moons) is around -260 degrees Fahrenheit.
Saturn is the gas Giant with tiny core deep down the atmosphere. Surface temperature of Saturn is govern by its' thermodynamic cycle of rise and sink of massive gases. I believe, the surface temperature at the reference surface would not be of any great difference may be 10,000 oC with insignificant difference of day and night.