It means that there is a low humidity level. The lower the humidity level is, the weather becomes drier, too. The cause is the prolonged lack of rain.
clear, dry weather
Dry weather means no rain. A dry day means no rain today. A dry spell means no rain for a while. A dry region means a place that seldom has rain.
The weather will be dry and low in humidity.
Static electricity is more common in dry weather because the lack of moisture in the air allows for a buildup of electric charge on surfaces. Wet weather helps to dissipate static electricity as moisture in the air conducts electricity and reduces the buildup of static charge.
That is a drought.
arid (meaning dry) arctic temperatures anticyclone
A collective noun for dry weather is spell. eg. A spell of dry weather
Dry wit, dry weather, and dry wine.
dry sunny weather
drought can last but the simple dry weather wont
There is no standard collective noun for 'dry weather', however, the term sometimes used is a spell of dry weather.
the weather is dry rainy hot
Spell.
hot dry weather
the weather in Nubia is hot and dry
the weather is dry rainy hot
A time of dry weather with little rainfall is called a drought.