How to protect your leather shoes from the rain
Remove moisture from the inside of the shoe. This can be done with a newspaper or a small dry towel. On an hourly basis, draw the moisture from inside the shoe by replacing the moist paper with a dry one. This process could take 2 hours or 2 days, depending on the extent of soaking.
The shoes should not be placed near a heat source; let them dry naturally at room temperature. Excess heating will cause the moisture to leave the shoe too quickly and could result in the leather cracking. It is impossible to fix cracked leather on shoes and boots.
After the shoes have dried with no more moisture being drawn out, clean and condition the shoe with a leather balm or cream. The final step is to polish the shoes like you normally do.