431
SXUS46 KSEW 211043
RECSEW

Mount Rainier Recreational Forecast
National Weather Service Seattle WA
343 AM PDT Fri Aug 21 2026

.SYNOPSIS...
One more warm day FRiday with the park on the back side of an
upper level ridge. Upper level low approaching from the southwest
will move into the coastal waters Saturday and into Southern
British Columbia early Sunday morning. This system will bring
cooler weather with a chance of showers and thunderstorms
Saturday. Upper level ridge rebuilding Sunday will move east
Monday and Tuesday. An upper level trough will arrive Wednesday.

&&

.IMPACTS...Strong winds near the summit will make it difficult to
move safely and could produce local whiteout conditions Friday
through Saturday night. A high level of skill and experience in
alpine terrain, including use of GPS, is recommended for
navigation and camping in these conditions.

&&

.FRIDAY...Partly sunny. Freezing level near 14500 feet.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers after
midnight. Snow level near 12500 feet.
.SATURDAY...Mostly cloudy with a chance of showers and a slight
chance of thunderstorms. Snow level near 12000 feet.
.SATURDAY NIGHT...Mostly cloudy. A slight chance of showers in
the evening. Snow level near 9500 feet.
.SUNDAY...Partly sunny. Freezing level near 12000 feet.

&&

Temperature and wind forecasts for selected locations.

                       Fri    Fri    Sat    Sat    Sun
                            Night         Night

Summit   (14411 FT)     26     25     22     18     21
                     SW 40   S 50   S 45  SW 40   W 35

Camp Muir(10188 FT)     50     48     43     33     36
                      S 30  SE 30   S 25   W 25  NW 25

Paradise  (5420 FT)     73     54     55     44     55
                     SE  5  NW  5  SW 10   W 10   W  5

Longmire  (2760 FT)     83     55     66     50     66
                     SE  5   N  5   W 10   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 clear. Freezing level near 13500 feet.
.MONDAY...Sunny. Freezing level near 13500 feet.
.MONDAY NIGHT...Mostly clear. Freezing level near 14000 feet.
.TUESDAY...Sunny. Freezing level near 14000 feet.
.TUESDAY NIGHT...Partly cloudy. Freezing level near 12000 feet.
.WEDNESDAY...Mostly sunny. Freezing level near 12000 feet.
.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers
in the evening, then mostly cloudy after midnight. Snow level
near 9000 feet.
.THURSDAY...Partly sunny in the morning then becoming sunny.
Freezing level near 11500 feet.

$$

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