There are warnings for the health of vulnerable Islanders, a chance travel will be disrupted and advice on how to cope in extreme heat.
A Met Office amber weather warning starts at midnight tonight (Wednesday), and it will be running alongside one issued by the Isle of Wight Met Service.
A hosepipe ban remains in place and there are concerns about the impact fires in the open could have on our countryside.
Meanwhile, the Isle of Wight Council has issued advice about what to do in the hot weather (scroll down for details).
What does the national Met Office amber heat warning say?
The Met Office warning starts overnight and will run until Sunday.
It will impact around half of the Isle of Wight.
Temperatures are expected to peak on Friday and Saturday and crucially, it will remain warm overnight.
Graphic by the IW Met Service. This is expected to be the picture on Thursday afternoon, with temperatures topping 30 Celsius.
What does the IW Met Service say?
The IW Met Service has issued a heat warning, for the Island, and it remains in place over the next few days.
Temperatures expected to hit 30 or above on Thursday afternoon, says forecaster Jamie Russell.
What else are we being warned about?
In addition to the warnings about heat, there are concerns about the risk of fires in the open too.
The Isle of Wight Met Service says the risk of fire is 'extremely high' - its highest alert possible.
Its Isle of Wight wildfire warning (click here for more) will be in place until Sunday.
Wildfire warnings by the IW Met Service (above) and the Met Office (below).
The Met Office is also warning that the impact of wildfire will be increasingly severe in the coming days, with particular concern for the Island's West Wight.
Friday and Saturday have both sparked an 'exceptional risk' warning.
There are also concerns for the health of some Islanders, including sunburn or heat exhaustion (dehydration, nausea, fatigue) and other heat related illnesses, some linked to underlying conditions.
The Isle of Wight Council said: "Follow the guidelines for staying safe and well in hot weather. Stay out of the heat, especially between 11am and 3pm. If you have to go out, walk in the shade, apply sunscreen and wear a hat and light scarf. Avoid extreme physical exertion. Have plenty of cold drinks, and avoid alcohol, caffeine and hot drinks, and eat cold foods, particularly salads and fruit with a high-water content
"Take a cool shower, bath or body wash, or sprinkle water over the skin or clothing, or keep a damp cloth on the back of your neck. Keep your living space cool - place a thermometer in your main living room and bedroom to keep a check on the temperature. Keep windows that are exposed to the sun closed during the day and open windows at night when the temperature has dropped - close curtains that receive morning or afternoon sun.
"Turn off non-essential lights and electrical equipment - they generate heat."
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