Winter Forecast For 2025 Oregon. Snowchance calculates the likelihood of a winter storm entering a region on a specific day. January could be somewhat colder than average in the northeast, but the forecast is uncertain.

La niña’s effects typically reach peak strength in winter, when it brings wet, cool weather to the pacific northwest and ohio valley. For the intermountain west, old farmer’s almanac forecasts a “mild, snowy” winter, adding that “precipitation and snowfall will be average or above average throughout the intermountain region.