This is the 5474th most frequent Russian word.
погодных
"Погодных" means "weather-related" in English.
In this sentence, 'погодных' (of weather) serves as an adjective, modifying the noun 'условий' (conditions) to specify the type of conditions being discussed, which are related to weather.
В последнее время изменения погодных условий стали заметнее.
Recently, changes in weather conditions have become more noticeable.
Here, 'погодных' modifies the noun 'явлений' (phenomena), specifying that the phenomena in question are related to weather.
Создание надежных прогностических моделей требует глубокого изучения погодных явлений.
Developing reliable forecasting models requires in-depth study of weather phenomena.
In this instance, 'погодных' accompanies 'факторов' (factors), indicating that the factors are specifically those affecting or influenced by weather.