Arc'teryx
Men's Alpha SV jacket
These jackets, made in Vancouver, are the real deal. Many alpinists and trail or glacier guides from rainy regions swear that there is no better rain shell. Arc'teryx designs itswaterproof jackets in different thicknesses and styles, though they are known for their burly jackets. Ones such as the Alpha SV and the Theta SV, which are made with Gore Tex Pro Shell, are hard shells that will keep you dry and protected in just about any storm as long as you don't go swimming. Gore Tex Pro Shell is extremely waterproof while maintaining breathability and flexibility. Arc'teryx also makes insulated waterproof shells, water resistant soft shells and mid weight shells. These jackets are designed with movement in mind and have pit zips, hoods that accommodate climbing helmets, a long enough hemline to keep you covered while wearing a harness as well as zipper garages and water tight zipper seals. These jackets are the most expensive, but if you plan to be in the rain a lot, they are worth it.
Patagonia
Women's Stretch Ascent jacket
Some people may prefer Patagonia jackets because they are considered more environmentally friendly. Patagonia's waterproof shells are made with H2No material. Jackets such as the Stretch Element and Stretch Ascent are great for alpinism, climbing and skiing, and the Ascent is made with 100 percent recycled polyester under the H2No barrier. It is also recyclable through Patagonia's Common Threads Recycling Program. The Rain Shadow Jacket is a lighter weight shell that is more packable and perfect for hikers of backpackers who want to pack it just in case.
Mountain Hardwear
Women's Epic jacket
Mountain Hardwear's best rain jackets are the Women's Adaro jacket and Men's Argon jacket, made with Gore Tex Pro Shell. Mountain Hardwear makes several super light weight jackets such as the Cohesion and Epic jackets made with Conduit DT and Conduit Silk respectively.
Others
Isis, Women's Misty Mountain jacket
There are plenty of rain jackets out there that will serve your purpose well as long as you don't intend to be in the rain every single day. Brands such as Marmot, Isis, North Face, Moonstone, Mammut, Helly Hansen, Outdoor Research and Cloudveil all make quality rain jackets that can be more affordable than the aforementioned brands. Look for one that has vents, accommodates a hood if you will be wearing one and has sealed or taped seams.