This textbook delves into the crucial intersection of weather, climate, and agriculture. Based on foundational principles like radiation and thermodynamics, it explores atmospheric interactions with plants, soil, livestock, and aquaculture. Highlighting the urgent need for food security in a changing climate, especially in vulnerable regions like Asia, it underscores the role of agricultural meteorologists in optimizing production and mitigating risks. As global emissions reach new heights, the book also touches on sustainable innovations and policies. Essential for students and researchers in agriculture, horticulture, and forestry.