What do you mean it's fine today?

It means the weather is fine, there is no pollution, the sun is rising and the sky is clear in Wan Li.

Good is moderate pollution. According to the weather forecast, sunny days are good weather. Half the clouds and half the sun are cloudy. That's an evaluation of air quality. The air quality index is 5 1 to 100. 0 to 50 is excellent. Generally speaking, the sky is clear, cloudless, windless, comfortable, the air is fresh and there is no smog, which is suitable for outdoor sports.

The weather is really good. "Good" means sunny and breezy. "Good" in "good" means reaching or exceeding the prescribed limits. The best is that the air is good without pollution, and the best is moderate pollution. According to the weather forecast, sunny days are good weather. Half the clouds and half the sun are cloudy. Today's weather is really good.