US markets remain closed due to a national holiday and all eyes remain on the euro zone summit in Brussels, where the region's finance ministers are meeting to discuss Greece's second bailout.

At time of writing, GBP/USD is quoting at the 1.5860 zone, 0.2% above its Friday's close. From a technical view, Valeria Bednarik, chief analyst at FXstreet.com, said, "With a weekly opening gap around 1.5820, only below this last the pair may turn short term bearish, as 4 hours chart shows indicators exhausted in overbought levels, supporting a bearish limited correction for the pair".

Bednarik sees next resistances at 1.5880, 1.5910 and 1.5945, while she locates next supports at 1.5820, 1.5770 and 1.5730.