Kenya Met also warned of very chilly nights, with Nyandarua recording the lowest night temperatures of up to 7°C during the forecast period. Motorists using a flooded highway during cold and rainy weather in Nairobi KNA The Kenya Meteorological Service Authority (KMSA) has forecast moderate to heavy rains in at least 29 counties over the next five days, from Sunday, November 8, to Thursday, November 12.