Big weather changes are on the way starting as early as Tuesday.

By sunrise tomorrow morning, a cold front is expected to move into South Texas dropping the high temperature into the 40s by Wednesday.

Temps in San Antonio are expected to drop by 20 degrees tomorrow, with a high temperature of 61 degrees.

Along with the cold weather, the area could see some showers through Thursday with the highest chance, 70 percent, forecasted for Wednesday.

Although Thursday night is expected to be clear, the low temperature is 36 degrees.