The palace said the monarch, 95, could undertake some light duties during that time, including virtual audiences.
Officials said it is her "firm intention" to attend Remembrance Sunday events on 14 November.
The Queen underwent preliminary medical checks in hospital on 20 October after cancelling a visit to Northern Ireland.
She resumed public engagements on Tuesday this week by meeting ambassadors via video link from Windsor Castle.
But it was announced this week that she will not attend the COP26 climate change summit in Glasgow.