FA issues,
1. 25 basic point interest raising is already absorbed by market in recent two weeks. Unless our Mr.G claim 50points in 6.30 meeting, US$ cannot get help from interest rate any more.
2. China have to raise rate, but may not in very short term, because all china ppl are suffering negative rate now, which is not healthy for China now. (TLLD, kick those suckers) So, let's assume RMB saving rate won't affect US$ in very short time frame since you go back soon. :P

Charts:
1. CBOE $GOLD futures, still in longterm bullish in monthly chart.
2. have a look at $USD chart, daily chart , 88-89 is solid support, and 91 is resistance. IMHO, USD is in temp consolidation area in short term. On Weekly chart, USD cannot break 92 trendline resistance. Long term USD is still in downtrend. Ok, in a word, USD still long term bearish and short term is consolidating for a while.

Since RMB is linked to USD, so 20.75-20.8 is reasonable price in short term.
long term? well, I cannot see USD any new high possibility, which means you seldom get a 21.
I am assuming you are converting RMB to SGD, vice verse, you may do SGD to RMB calculating. I am seeing 4.84 around. But guessing USD bottom is too tough for me to figure out.