All pictures look better with a rainbow in them. The problem is often the rain part.
I captured this image during heavy rain and very strong winds. I parked the SUV to provide some protection from both, but only partial protection was ultimately afforded.
Definitely use a circular polarizer filter when photographing rainbows. But, be careful with how the filter is adjusted. Improper filter rotation will result in the rainbow being erased instead of being enhanced.
Camera and Lens Settings
24mm f/11.0 1/60s ISO 100 5685 x 3790px