Invasive weeds pose a growing threat to biodiversity and natural ecosystems, a challenge that is escalating with climate change. These resilient plants, marked by rapid growth and adaptability, outcompete native species, disrupt ecological balances, and alter critical ecosystem functions. As climate change progresses, rising temperatures along with CO2 and shifting precipitation patterns create favorable conditions for invasive weeds to proliferate, often at the expense of native flora. The ecological consequences of these invasions are profound, leading to the displacement of native species, altered species composition, and a significant reduction in biodiversity. Herbivores, pollinators, and other wildlife are increasingly affected as their habitats and food sources are transformed by the spread of invasive plants. Additionally, the disruption caused by these weeds extends to essential ecosystem functions, including nutrient cycling, soil health, and water regulation. The management of invasive species is becoming increasingly complex due to the unpredictability of climate change. In response, adaptation strategies, such as integrated pest management (IPM), are being developed to address these evolving challenges. Predictive models and scenario analyses are providing valuable insights into potential future risks, while effective management increasingly relies on robust policies and public engagement. Despite these efforts, significant research gaps persist, particularly in understanding the long-term impacts of invasive weeds and in developing effective restoration strategies for ecosystems already compromised by their spread.