As of the time this was written, the exchange rate for the Polish Zloty (PLN) is 4.896319 PLN per American Dollar (USD). The PLN reached a 90-day high of 4.8963 PLN per USD, with a low of 4.4275 PLN per USD. The average exchange rate over the last 90 days was 4.6797 PLN per USD.
The PLN has held an average volatility of 0.58% against the USD for the last 90 days. The PLN has remained relatively stable after slowly accruing significant value in April and May of 2018. While the Polish Zloty is not among the most stable currencies, you can reasonably expect only minor fluctuations going forward, barring unforeseen circumstances before deciding on how to send money to Poland.