Is it still foggy this afternoon?

No. Fog is a common weather phenomenon, and its occurrence is closely related not only to the weather system, but also to the underlying surface and topography. According to the weather forecast, as of September 20, 2022, the weather was sunny, with 25 degrees and no fog. When the water vapor contained in the gas reaches the maximum, the fog is saturated. The higher the temperature, the more water vapor is contained in the air. If the air near the ground contains more water vapor than saturated water vapor at a certain temperature, then cold air will appear.