Hundreds of protesters are due to start marching from Lincoln to RAF Waddington against the use of armed drone aircraft.
It's the first time the Ministry of Defence has based the spy planes in the UK, which will be deployed over Afghanistan.
Today's march will start at South Park, down the A15 Cross O'Cliff hill and down Grantham Road to a Peace camp set up outside the airbase.
More top news
The first anniversary of a seaside massacre in Tunisia in which 30 Britons died will be marked by families on Sunday.
Morning coastal mist, low cloud clearing. Otherwise dry with sunny spells.
Plenty of dry and bright weather with any remaining showers dying out this evening to leave a dry night with some clear spells.