London Marathon Weather Latest: Event Could Be Hottest On Record

Runners are being warned that temperatures on Sunday could exceed the warmest London Marathon on record, with a chance of the mercury rising to 23C or higher at some points along the route.Thundery showers overnight on Saturday means that temperatures are likely to be high after a humid start, Met Office forecasters have warned. The warmest London Marathon on record was in 1996 when it reached 22.7C in St James’s Park.🌞IMPORTANT INSTRUCTIONS TO RUNNERS🌞We're expecting