On the subject of photographing in the rain, it is wise to protect your gear from getting wet. High–end, professional grade DSLR cameras are well-sealed from inclement weather, but the consumer-level gear that mot people have tends to be less-well protected.
You can buy protective covers for you cameras and lenses but they can be on the pricey side. An easy, less expensive solution is to get a gallon-sized re-sealable plastic bag (Ziploc is the brand name but other generic/off-brand bags will work too). Simply place your camera in the bag. Poke a small hole on one side for the lens to stick out (make sure that the hole is smaller than the lens and then stretch the plastic around the lens for a tight seal). Then make another hole on the other side of the bag for the viewfinder. With the strap sticking out, seal the bag up as best you can. When carrying the camera with the makeshift cover on my shoulder in the rain, I turn around it so that the lens is pointed towards my body. This automatically forces the camera to hang in a slightly downward position and my body helps to shield it as well.
All this keeps your camera protected from a light rain fairly well, though it may only be of limited help in a heavy deluge. In practice it’s a bit on the awkward side to use. Lining up the viewfinder hole with the hold in the bag and viewing the camera’s monitor being the hardest things to master. However, for a quick and inexpensive way to protect your camera from the rain, it’s hard to beat.