According to Illinois law, when should headlights be on?

Headlights are required to be turned on during certain weather conditions, specifically when visibility is poor due to rain, fog, snow, or any other weather-related factors that necessitate the use of windshield wipers. This regulation enhances safety by ensuring that a vehicle is visible to others on the road, especially when visibility is compromised.

While headlights are certainly needed during nighttime driving, Illinois law emphasizes that they should also be utilized in adverse weather conditions, regardless of the time of day. This proactive measure reduces the risk of collisions caused by low visibility, making it essential for all drivers to follow this guideline.