Even with a layer of clouds, the Northern Lights were visible overnight Tuesday night and Wednesday morning.

The skies cleared later in the morning, but even with a bank of clouds, the Aurora Borealis was visible in the northern skies of Montana and here in the Bitterroot Valley.

Scientists say that even though sunspot activity is very low on the Sun, a weak area in Earth's magnetic field is allowing the Northern Lights activity. There's a 30 percent chance of more aurora Wednesday night, September 9.