On Thursday, the mercury level is likely to rise to 48C in Al Khor and 46C in Doha.
Strong winds are expected in some places in the early hours of Monday. Windy conditions and high seas are also likely in offshore areas.
Poor visibility due to fog is once again expected in the country in the early hours of Tuesday, followed by strong winds and dusty conditions, the Qatar Met department has said.
The fire, dubbed the Thomas Fire, raged in the foothills above and in the city of Ventura some 50 miles northwest of Los Angeles, fire officials said late on Tuesday, a day after it began.