Although dollar's retreat from 91.33 suggests recent upmove has possible formed a temporary top last Friday, a breach of 90.51/59 is needed to confirm and bring correction to 89.90 (previous resistance, now support) and later towards 89.50/60, otherwise, one more rise cannot be ruled out.  
Above 91.33 would indicate aforesaid upmove from this month's low at 88.01 has resumed and bring further gain to 91.60/70.