Strong winds are expected in some places by Friday afternoon, the Qatar Met department has said.
This will follow a likely spell of poor visibility in parts of the country in the early hours of the day, according to the weather report.
In its detailed forecast, the department has said misty to foggy conditions are expected in some places by early this morning, followed by a hot day with slight dust in some areas as well as clouds.
Humid conditions will prevail by night, the report adds.
The wind speed will be less than 5 knots at first, later turning northwesterly-northeasterly with a speed of 10-20 knots. It is likely to reach a high of 24 knots in some places by the afternoon.
Visibility, meanwhile, may drop to 2km or less in some areas by early this morning.
On the other hand, it will be misty in some offshore areas in the early hours of the day, followed by fine conditions.
The maximum temperature is expected to be 41C on Friday in Wakrah, Mesaieed and Abu Samra, 40C in Doha, 39C in Al Khor, 38C in Dukhan and 36C in Ruwais.
Thursday, a maximum of 44C was recorded in Sheehaniya, Karana, Turayna and Jumayliyah, followed by 43C in Abu Hamour, Batna and Ghuwairiyah, 41C in Doha (airport area), the Qatar University area and Mesaieed, and 40C in Abu Samra and the Hamad International Airport area.