Blood Moon Tonight!
If the clouds clear away, and I expect that they will at least turn partly cloudy overnight, then the RGV will be treated to a rare celestial treat: a Blood Moon.
What is a blood moon? A blood moon is technically a total lunar eclipse, when the full moon passes into the Earth's shadow. The sun is so big that its light scatters around the earth casting an orange and/or red haze onto the moon. This makes it look "blood" red for a while.
The best time to see the blood moon will be at 2:46 a.m. Tuesday morning. However, you can see (clouds permitting) the eclipse starting at around 2 a.m. and lasting until around 3:30 a.m.