According to the Old Farmer’s Almanac, winter in Portland and the Pacific Northwest is set for some big changes! 🌐 #News #Oregon #Weather #WinterForecast. PORTLAND, OR – The Old Farmer’s Almanac has released its long-range winter forecasts, revealing a shift from last year’s predictions. Portland, Oregon and the Pacific Northwest region, famous for its constant drizzle, might have something a little more exciting in store this winter. Whether you’re in northern Washington or as far south as Eureka, California, you’ll want to be prepared for some unusual weather patterns this season. So, what exactly is coming your way? Let’s dive in!