SXUS46 KSEW 191003 RECSEW Mount Rainier Recreational Forecast National Weather Service Seattle WA 303 AM PDT Thu Mar 19 2026 .SYNOPSIS... Atmospheric river will remain aimed at the park through Friday with a cold front stalled over Vancouver Island. The river will come to an end as the cold front moves through the park Friday evening. Zonal flow aloft over the weekend with a weak system moving by to the north. Temporary break early Monday before additional systems arrive Tuesday and Wednesday. && .IMPACTS...Stormy weather will create difficult backcountry skiing and mountaineering conditions across much of the alpine terrain of Mt. Rainier, including the Muir snowfield Thursday into Saturday. Blizzard-like conditions with strong winds and near zero visibility are likely. A high level of skill and experience in alpine terrain, including use of GPS, is recommended for navigation and camping in these conditions. && .THURSDAY...Rain and snow. Snow level near 8500 feet. .THURSDAY NIGHT...Rain and snow. Snow level near 9500 feet. .FRIDAY...Rain and snow. Snow level near 8500 feet. .FRIDAY NIGHT...Rain and snow in the evening, then mostly cloudy with a chance of showers after midnight. Snow level near 6000 feet decreasing to 3500 feet after midnight. .SATURDAY...Partly sunny with a chance of showers. Snow level near 2000 feet. && Temperature and wind forecasts for selected locations. Thu Thu Fri Fri Sat Night Night Summit (14411 FT) 17 17 14 7 0 W 75 W 95 SW 115 SW 90 W 70 Camp Muir(10188 FT) 30 30 28 20 10 W 60 W 60 SW 65 W 50 W 40 Paradise (5420 FT) 43 39 42 24 34 W 15 W 15 SW 15 W 15 W 10 Longmire (2760 FT) 51 45 49 30 42 NW 5 NW 5 SW 5 W 5 W 5 ++ Temperatures and wind for the summit and Camp Muir are average conditions expected in the free air at those elevations. ++ Temperatures for Paradise and Longmire are the expected highs and lows. Wind is the average wind expected during that period. .Extended Forecast... .SATURDAY NIGHT...Partly cloudy. A slight chance of showers in the evening. Snow level near 2500 feet. .SUNDAY...Partly sunny. Freezing level near 4000 feet. .SUNDAY NIGHT...Mostly cloudy. Freezing level near 6000 feet. .MONDAY...Mostly cloudy. A chance of showers in the afternoon. Snow level near 3500 feet. .MONDAY NIGHT...Mostly cloudy with a chance of rain and snow in the evening, then rain and snow likely after midnight. Snow level near 5500 feet. .TUESDAY...Rain and snow. Snow level near 6500 feet. .TUESDAY NIGHT...Rain and snow. Snow may be heavy at times in the evening. Snow level near 5500 feet decreasing to 4000 feet after midnight. .WEDNESDAY...Rain and snow. Snow level near 2500 feet. $$ www.weather.gov/seattle