Mount Rainier National Park Weather Forecast
Mount Rainier National Park weather: 39°F, clear sky. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Mount Rainier National Park is a national park in Washington. Mount Rainier National Park is a US national park known for a glaciated volcano and wildflower meadows.
Right now it is 39°F (4°C) in Mount Rainier National Park with clear sky. It feels like 31°F. Today runs from 38°F to 50°F. Chance of precipitation is 20%. Sightseeing conditions score 7.2/10 - good conditions.
The best time to visit Mount Rainier National Park is July. The climate is polar. January, February and December tend to be the least comfortable months. August is the warmest month with average highs near 49°F, while February is the coldest with lows near 9°F.
The closest major airport is Seattle-Tacoma International Airport (SEA), about 48 mi away. Nearby highlights include Mount Rainier, Space Needle, Columbia River and Mount Hood.
In plain terms. Today is about average for August. The forecast high of 50°F is in line with the 49°F typical for this month. The best window to be outside is roughly 5 PM to 8 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Mount Rainier National Park today at 9.4/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Mount Rainier National Park
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Mount Rainier National Park right now
Source: Open-Meteo. Updated 10:11 AM, Aug 23 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Mount Rainier National Park
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sat, Aug 22 | 🌥️ Fog | 50° / 38° | 20% | 19 mph | 7 |
| Sun, Aug 23 | ☀️ Clear sky | 41° / 29° | 5% | 16 mph | 7 |
| Mon, Aug 24 | ☁️ Overcast | 58° / 37° | 1% | 15 mph | 7 |
| Tue, Aug 25 | ☁️ Overcast | 68° / 44° | 1% | 8 mph | 7 |
| Wed, Aug 26 | ⛅ Partly cloudy | 59° / 34° | 12% | 7 mph | 7 |
| Thu, Aug 27 | ⛅ Partly cloudy | 46° / 28° | 4% | 7 mph | 6 |
| Fri, Aug 28 | ⛅ Partly cloudy | 48° / 27° | 2% | 8 mph | 7 |
| Sat, Aug 29 | ☁️ Overcast | 52° / 27° | 3% | 8 mph | 7 |
| Sun, Aug 30 | ☁️ Overcast | 45° / 28° | 4% | 7 mph | 6 |
| Mon, Aug 31 | ⛅ Partly cloudy | 44° / 24° | 20% | 8 mph | 7 |
| Tue, Sep 1 | ☁️ Overcast | 48° / 25° | 27% | 7 mph | 7 |
| Wed, Sep 2 | ☁️ Overcast | 48° / 29° | 22% | 7 mph | 6 |
| Thu, Sep 3 | 🌦️ Light drizzle | 39° / 27° | 23% · 0,0 in | 6 mph | 4 |
| Fri, Sep 4 | ⛅ Partly cloudy | 55° / 24° | 17% | 7 mph | 6 |
| Sat, Sep 5 | ☁️ Overcast | 57° / 33° | 14% | 7 mph | 6 |
| Sun, Sep 6 | ☁️ Overcast | 51° / 35° | 19% | 5 mph | 4 |
Climate in Mount Rainier National Park month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 23° | 13° | 12,9 in | ★☆☆☆☆ |
| February | 19° | 9° | 11,4 in | ★☆☆☆☆ |
| March | 23° | 12° | 13,4 in | ★☆☆☆☆ |
| April | 27° | 15° | 5,1 in | ★☆☆☆☆ |
| May | 33° | 20° | 3,7 in | ★★☆☆☆ |
| June | 39° | 26° | 3,6 in | ★★☆☆☆ |
| July | 49° | 34° | 1,1 in | ★★★★☆ |
| August | 49° | 36° | 2,4 in | ★★★☆☆ |
| September | 45° | 31° | 3,8 in | ★★★☆☆ |
| October | 34° | 22° | 8,5 in | ★☆☆☆☆ |
| November | 25° | 15° | 14,9 in | ★☆☆☆☆ |
| December | 24° | 15° | 21,9 in | ★☆☆☆☆ |
Climate type: Polar. Source: Open-Meteo archive (ERA5).
Weather map for Mount Rainier National Park
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Mount Rainier National Park
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Mount Rainier National Park
Go in July. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Explore Mount Rainier National Park
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Mount Rainier National Park?
Mount Rainier National Park is a national park in Washington. Its coordinates are 46.88, -121.7269. It lies in North America.
What is the weather like in Mount Rainier National Park right now?
It is currently 39°F (4°C) with clear sky. Humidity is 45% and wind is 6 mph.
When is the best time to visit Mount Rainier National Park?
July offer the most comfortable conditions in Mount Rainier National Park, which has a polar climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Mount Rainier National Park in?
Mount Rainier National Park observes America/Los_Angeles (UTC-07:00). The local time is 10:11 AM.
What is the nearest airport to Mount Rainier National Park?
The closest airports are Seattle-Tacoma International Airport (SEA), 48 mi away, Portland International Airport (PDX), 98 mi away and Vancouver International Airport (YVR), 174 mi away.
What are the top things to do in Mount Rainier National Park?
Popular options include Mount Rainier, Space Needle, Columbia River, Mount Hood, Olympic National Park and Deception Pass State Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (national-parks) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 23, 2026 at 10:11 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
