High levels of fine dust have appeared for the first time in 3 months.
For more details, let's turn to our Michelle Park at the weather center, Michelle?
We started the week with hazy skies due to the high concentration of fine dust.
The air quality has recovered as of the late afternoon, but more smog is expected to appear later tonight.
The fine dust is forecast to be at bad levels again tomorrow, especially here in the capital and the western parts of the country.
The weather itself will be favorable with just a few clouds providing some shade from the sun, and daytime highs on the warm side, going above the seasonal average tomorrow.
Speaking of temperatures, there is about a 10-degree difference between lows and highs, so dress accordingly.
Seoul starts the day at 13, Daegu 12, Busan 15 and Jeju at 17 degrees Celsius.
The country will be under mild readings again tomorrow, highs rising to the low to mid-twenties.
Other than Gangwon-do and the southern provinces, the nation will be rain-free this week.
As of this weekend, the mercury will plunge further, and we will start feeling the chilly autumn weather.
I'll leave you with the weather conditions around the world.