Since the air s capacity to hold water is dependent on temperature, the relative humidity is a function of both temperature and moisture. This is why the relative humidity varies so much from the early morning to the mid-day. High humidity that persists through the day may require you to dust or spray for diseases on plant that are subject to leaf diseases in very moist conditions. High humidity in summer can also make the outside work more uncomfortable. WINDcast shows the forecast wind direction and speed at the surface for the indicated time-period.
Strong winds can increase moisture loss from the soil and vegetation.
Very strong winds can damage some plants through tearing or whipping or if sand or dust is carried by the wind through abrasion. Strong winds can also make outside work on ladders or rooftops more dangerous. Thunderstorms can bring beneficial rainfall but of course also bring the danger of lightning, damaging winds and sometimes, even hail. Sunshine is required for plant growth. It also makes working in the garden a more pleasant experience.