SXUS46 KSEW 201051
RECSEW

Mount Rainier Recreational Forecast
National Weather Service Seattle WA
351 AM PDT Fri Mar 20 2026

.SYNOPSIS...
Atmospheric river that has been over the park the past few days
moving out Friday afternoon as the cold front that has been
stalled over Vancouver Island finally moves through the park.
Cooler air mass behind the front for tonight and Saturday. Weak
system going by to the north Sunday. Additional weather systems
Tuesday and Wednesday. Upper level ridge trying to build Thursday.

&&

.IMPACTS...Stormy weather will create difficult backcountry
skiing and mountaineering conditions across much of the alpine
terrain of Mt. Rainier, including the Muir snowfield. Blizzard-
like conditions with strong winds and near zero visibility are
likely Friday and Friday night. A high level of skill and
experience in alpine terrain, including use of GPS, is recommended
for navigation and camping in these conditions.

Strong winds in alpine regions on the mountain, including the
Muir snowfield, will make it difficult to move safely and could
produce local whiteout conditions Saturday and Sunday. A high
level of skill and experience in alpine terrain, including use of
GPS, is recommended for navigation and camping in these
conditions.

&&

.FRIDAY...Rain and snow until late afternoon, then showers late
in the afternoon. Snow level near 9000 feet.
.FRIDAY NIGHT...Showers likely in the evening, then mostly cloudy
with a chance of showers after midnight. Snow level near 6500
feet decreasing to 4000 feet after midnight.
.SATURDAY...Partly sunny. A chance of showers. Snow level near
2000 feet.
.SATURDAY NIGHT...Partly cloudy. A slight chance of snow showers.
Snow level near 2000 feet.
.SUNDAY...Partly sunny. A chance of rain or snow. Snow level 2000
feet rising to 3000 feet in the afternoon.

&&

Temperature and wind forecasts for selected locations.

                       Fri    Fri    Sat    Sat    Sun
                            Night         Night

Summit   (14411 FT)     13      7      4      3      5
                     SW 110 SW 90   W 65   W 75   W 70

Camp Muir(10188 FT)     27     20     13     15     20
                     SW 65   W 45   W 40   W 40   W 30

Paradise  (5420 FT)     42     26     31     20     31
                      W 15   W 10   W 15   W 10   W 10

Longmire  (2760 FT)     49     32     40     26     41
                      W  5   W  5   W  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...

.SUNDAY NIGHT...Mostly cloudy. A slight chance of snow in the
evening.
.MONDAY...Mostly cloudy. Freezing level near 6000 feet.
.MONDAY NIGHT...Mostly cloudy. A slight chance of rain and snow
in the evening, then a chance of rain and snow after midnight.
Snow level near 4500 feet.
.TUESDAY...Rain and snow. Snow level near 5500 feet.
.TUESDAY NIGHT...Rain and snow in the evening, then rain and snow
likely after midnight. Snow level near 5500 feet decreasing to
4500 feet after midnight.
.WEDNESDAY...Rain and snow. Snow level near 3500 feet.
.WEDNESDAY NIGHT...Rain and snow likely in the evening, then
mostly cloudy with a chance of rain and snow after midnight. Snow
level near 3000 feet decreasing to 2000 feet after midnight.
.THURSDAY...Partly sunny. A chance of snow showers. Snow level
near 2000 feet.

$$

www.weather.gov/seattle