L-R Daniel Doherty, Joshua Pace and Logan Bovington at Billinghay Swimming Pool. EMN-190726-092627001
Some people made the most of it by hitting the pool, the beach or the park, while others tried to carry on working under sticky conditions.
Others less keen on the heat found their own ways of keeping cool. Here are a few images from scorching Thursday.
L-R Abby 8 and Libby of Boston, enjoying the weather at Woodhall Spa. EMN-190726-092616001 L-R Mia Lassmans and Aidan Eadsforth of Coningsby, at Billinghay swimming pool. EMN-190726-092713001 L-R Ruth Ullyatt and Emma Byers at Billinghay swimming pool. EMN-190726-094234001 L-R James White, Shannon Noble with 8-month-old Freddie White, Vicky Pickwell with Ollie Hardwick 3, Nick Hardwick with Lottie Hardwick 1, enjoying the weather at Woodhall Spa. EMN-190726-092527001 Carole Baker of Sleaford with L-R Lola Baker 6, Liliah Smith 14, Betsy Baker 8 and Jasper Baker 5, enjoying the weather at Sleaford EMN-190726-094303001 Tracy Angel playing her banjo in the sunshine in Sleaford. EMN-190726-092511001 L-R Kassie-Ann Williamson 12, Esme Williamson 8 ans Lucy Jenner 12 of Metheringham, enjoying the weather at Woodhall Spa. EMN-190726-092546001 Rachel Hallam with Nathan Hallam 5 of Sleaford at Boston Road Recreation Ground, Sleaford. EMN-190726-100701001 L-R Colin Sanders, Charley Hattrell 6, Tom Hattrell 9 and Julie Sanders, enjoying the sunny weather in Central Park, Boston. EMN-190729-110553001 Florence Epton 3 and Oscar Oglesbee 4 of Boston playing in sand in Boston Central Park. EMN-190729-110638001 L-R Katie Oglesbee and Aimee Epton of Boston, enjoying the sunny weather in Central Park, Boston. EMN-190729-110624001