National Weather Service United States Department of Commerce

Atmospheric River in the Pacific Northwest and Northern Rockies this Weekend

A Pacific storm and atmospheric river will impact the Pacific Northwest states and northern Rockies this weekend, bringing locally heavy low elevations rain and heavy high elevation snow in the mountains. By Sunday over the Interior Northwest, rain combined with snowmelt will increase the risk of flood hazards. Flood Watches are in effect. Read More >

Expect today to have temperatures similar to yesterday with dry weather! Skies will clear through the day today.
A spring-like warmup is on the way! Temperatures will steadily rise through this weekend reaching the 40s and 50s for most lower elevation locations by Sunday. This kind of warmup after a prolonged period of cold and snow in the Bighorn Basin has the potential to create ice jams and overland flooding as rapid snowmelt and ice breakup occurs. The timing of greatest concern is Sunday through Tuesday.
2/21/2025: A very warm weekend is in store across Wyoming, with widespread highs in the 40s expected Saturday. Gusty southwest winds on Sunday will help temperatures rise even further, with highs in the upper 40s and lower 50s. This warming trend will continue into early next week, with a few areas approaching 60 degrees on Monday.