The Met Office has issued a yellow thunderstorm warning for Stamford, Rutland and Bourne.
The warning extends from 6 a.m. Monday to midnight as the service forecasts a break in the heat after what is expected to be another hot weekend.
The Met Office said: ‘While some places remain dry, thunderstorms are likely to develop on Monday bringing locally heavy rain and possible disruption.
Temperatures in Stamford, Oakham and Bourne are all expected to exceed 30C this weekend.
Disruptions from thunderstorms include a small chance that homes and businesses will quickly be flooded.
On the roads, spray and flash flooding could lead to difficult driving conditions and some road closures, while there is a risk of delays and cancellations of train and bus services.
There is also a slight risk of power outages occurring and other services to some homes and businesses being lost.
Although people are hoping the rain will free England from drought and near-drought conditions, a university professor has warned that people should ‘be careful’ not to wish for heavy rain to cool temperatures, as a downpour could cause flash floods.
Rob Thompson, who is part of the University of Reading’s Department of Meteorology, posted a video of an experiment on Twitter which used three glasses of water on different grass surfaces to demonstrate what happens when it rains after a drought.
In the first experiment, a glass of water is placed on wet grass and soaks into the soil quickly, with the second experiment pointing out that water soaks into grass during a normal summer at a slower rate.
In the final experiment, the water is placed on what appears to be dry grass and does not appear to move, highlighting the potential for flash flooding if heavy rains follow a heat wave.
Dr Thompson told the PA news agency: ‘Britain is desperate for rain to break this drought.
“But we have to be careful what we wish for.
“Experience around the world has shown what can happen when heavy rains follow a very dry and hot period that has hardened the ground.
“The water cannot infiltrate easily, most of it flows directly to the surface, which can quickly turn into flash floods.
“If you pray for rain, you should pray for two days of drizzle, as dreadful as that may seem.”
The Met Office retweeted the post and added: ‘Dry ground takes longer to absorb water after a #heat wave than if it were a normal summer. This experiment shows how heavy rains after a long period of extreme heat can lead to flooding.
There are currently no warnings for the rest of next week when temperatures drop below 20°C.