lower temperatures can give false rH readings, I believe.

I wouldn't worry about it. If there is moisture in the oasis then don't force it. The worse thing you could do right now is introduce so much excess water that the tobacco swells up and cracks the wrapper (usually at the foot). Even 3 or 4 weeks at a lower humidity isn't that big of a deal.

Like Sid said, lower humidity is better for smoking for many.