Not only is this illegal in Arkansas it is very dangerous.

Did you know that if it is raining you are supposed to have your headlights on in the state of Arkansas? This is something that really gets me when I am driving. You see people everywhere that are going down the road not using their headlights when it is raining.
According to the website your mechanic, the state of Arkansas rules for headlight use is as follows.

Headlights

Headlights must be in use from 30 minutes after sunset until 30 minutes before sunrise.

Headlights must also be in use when you cannot see more than 500 feet ahead of you.

Headlights are required when windshield wipers are turned on.

High Beams

High beams must be dimmed when approaching traffic is within 500 feet.

High beams must also be dimmed when following within 200 feet of another vehicle.

High beams should not be used in fog, rain, or snow.

Texas laws are a little different.

Headlights

Headlights must be in use from 30 minutes after sunset until 30 minutes before sunrise.

Headlights must also be in use when you cannot see at least 1000 feet ahead of you.

High Beams

High beams may not be used when driving on lighted roads.

High beams are also not allowed when driving in fog, heavy rain, snow, sleet, or dust.

High beams must be dimmed when approaching traffic is within 500 feet.

High beams must also be dimmed when following within 300 feet of another vehicle.