Nairobi is expected to remain warm over the next five days, with temperatures set to reach 29°C on Monday and Thursday, according to the latest forecast by the Kenya Meteorological Service Authority (KMSA).
In its weather outlook covering October 18 to October 22, 2026, the agency also forecast light showers in Nairobi on Thursday night.
While the capital is expected to remain largely dry, other parts of the country will experience rainfall and thunderstorms, particularly in the afternoons and evenings.
The western highlands, Lake Victoria Basin and parts of the Rift Valley are among the areas expected to receive light to moderate rainfall accompanied by thunder and lightning.
Kisumu is expected to experience regular afternoon and evening showers during the forecast period.
Similar conditions are expected in Kisii, Nyamira, Homa Bay, Siaya, Bungoma and Vihiga counties.
Weather Forecast for Nairobi Metropolitan Area
In Kiambu County, residents can expect sunny intervals for most of the week, with temperatures reaching a high of 26°C. However, occasional light showers may occur on some afternoons and nights, particularly on Monday and Tuesday.
Kajiado is forecast to remain mostly dry, although light showers are expected on Wednesday afternoon. Daytime temperatures will range between 27°C and 28°C, while night temperatures could fall to 10°C early in the week.
In Machakos, mornings are expected to be clear, with light rain possible during the day or at night on Tuesday and Wednesday. Temperatures will reach a high of 29°C, while minimum temperatures are forecast to drop to 13°C.
Mombasa to Experience Warm, Humid Weather
Mombasa is expected to experience warm and humid conditions, with light showers in the early mornings giving way to sunny intervals.
The coastal city will have partly cloudy skies at night, with temperatures reaching a high of 31°C and dropping to around 24°C at night.
Acting KMSA Director Edward Muriuki urged residents and stakeholders in areas expected to receive rainfall to use the weather updates to prepare for changing conditions.
“We urge communities and sector stakeholders in affected zones to make use of these timely updates to safeguard lives, protect livelihoods, and adapt effectively to shifting weather patterns,” Muriuki said.