Strong southerly winds are expected over the eastern half of the country, the Kenya Meteorological Department has warned.
The department said strong winds may blow off roofs, uproot trees and cause structural damage.
"Those in the areas of concern should be on high alert," Met said on Monday.
Cool cloudy conditions are expected in the Monday morning breaking into sunny intervals for Nyeri, Muranga, Kirinyaga, Embu, Meru, Kiambu, Tharaka Nithi, Laikipia, Nyandarua, Nairobi, Machakos, Makueni, Kitui, Taita Taveta and Kajiado counties.
Sunny intervals are expected to prevail the whole day on Tuesday for Kwale, Mombasa, Kilifi, Lamu and Tana River counties.
In a July 24 to 25 forecast, Met had warned that Kenyans living in 13 counties should brace themselves for strong winds and large waves.
Met director Stella Aura said there are south-easterly winds of 20 knots being experienced in the coastal area.
The weatherman said South-eastern Lowlands and North-eastern Kenya will be accompanied by wave heights of 2.4m over the Kenyan Indian Ocean Coastal waters.
Aura said the winds and high waves will weaken to 20 knots and 2.4 metres on July 26.
Kenyans have been asked to brace for harsh weather conditions between August and December that could lead to severe drought.
The warning was issued by the National Drought Management Authority.
It comes even as the government announced that the number of counties currently affected by the ongoing drought rose from eight to 10 with fears that it could increase in the coming days.
Devolution Cabinet Secretary Eugene Wamalwa said the government was working round the clock to assist vulnerable families.
He named Garissa, Isiolo, Kilifi, Mandera, Samburu, Tana River, Wajir, Lamu, Marsabit and Turkana among the counties hardest hit by the drought.
