The organisers of this year's air day at RNAS Yeovilton in Somerset are expecting big crowds - and no clouds.
Around 40,000 people will have a perfect view as 30 types of aircraft take to the skies on Saturday.
More top news
Chancellor Philip Hammond has delivered his Budget which he believes will help build "a Britain fit for the future".
Sophia Bird has the forecast for Devon, Cornwall, Somerset and Dorset.
Sophia Bird has the forecast for Bristol, Wiltshire, Somerset, Dorset and Gloucestershire.