Rain is forecast to fall over London's Olympic venues on Monday, but it will be lighter with longer breaks between showers.
Temperatures are expected to reach 20degC on the day in which all 12 medal events are under a roof, so only preliminary events face possible disruption.
The Met Office said unsettled conditions will prevail throughout the week, with stronger wind in the next days possibly affecting events such as the rowing at Eton Dorney.
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