Mount Rainier Weather Forecast
Mount Rainier weather: 19°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Mount Rainier is a mountain in Washington. Mount Rainier is a mountain known as a glaciated volcano near Seattle. It sits at 14.409 ft above sea level.
Right now it is 19°F (-7°C) in Mount Rainier with clear. It feels like 10°F. Today runs from 19°F to 30°F. Chance of precipitation is 1%. Sightseeing conditions score 7.2/10 - good conditions.
The best time to visit Mount Rainier is June, July and August. The climate is polar. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 28°F, while February is the coldest with lows near -12°F.
The closest major airport is Seattle-Tacoma International Airport (SEA), about 49 mi away. Nearby highlights include Mount Rainier National Park, Space Needle, Columbia River and Mount Hood.
In plain terms. Today is about average for August. The forecast high of 30°F is in line with the 28°F typical for this month. The best window to be outside is roughly 4 PM to 7 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Mount Rainier today at 10/10. Overnight lows near 19°F mean ice is possible on bridges before dawn.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Mount Rainier
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Mount Rainier right now
Source: Open-Meteo. Updated 4:32 PM, Aug 22 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Mount Rainier
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Thu, Aug 20 | ☀️ Clear sky | 30° / 19° | 1% | 8 mph | 7 |
| Fri, Aug 21 | 🌨️ Snow | 30° / 24° | 5% · 0,1 in | 28 mph | 6 |
| Sat, Aug 22 | 🌦️ Light drizzle | 30° / 15° | 35% · 0,1 in | 7 mph | 6 |
| Sun, Aug 23 | 🌦️ Light drizzle | 26° / 11° | 6% · 0,0 in | 6 mph | 5 |
| Mon, Aug 24 | ⛅ Partly cloudy | 40° / 13° | 1% | 7 mph | 7 |
| Tue, Aug 25 | ☁️ Overcast | 37° / 15° | 3% | 7 mph | 6 |
| Wed, Aug 26 | 🌦️ Light drizzle | 19° / 5° | 2% · 0,0 in | 8 mph | 6 |
| Thu, Aug 27 | ☁️ Overcast | 26° / -0° | 2% | 7 mph | 7 |
| Fri, Aug 28 | ☁️ Overcast | 34° / 6° | 5% | 6 mph | 7 |
| Sat, Aug 29 | ☁️ Overcast | 31° / 8° | 10% | 8 mph | 7 |
| Sun, Aug 30 | 🌦️ Light drizzle | 17° / -1° | 15% · 0,0 in | 7 mph | 5 |
| Mon, Aug 31 | ☁️ Overcast | 31° / 4° | 14% | 6 mph | 7 |
| Tue, Sep 1 | ☁️ Overcast | 31° / 11° | 29% | 6 mph | 6 |
| Wed, Sep 2 | ☁️ Overcast | 36° / 14° | 33% | 7 mph | 7 |
| Thu, Sep 3 | ⛅ Partly cloudy | 30° / 11° | 30% | 8 mph | 7 |
| Fri, Sep 4 | ☀️ Clear sky | -- / -- | 24% | -- | — |
Climate in Mount Rainier 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 | 2° | -8° | 12,9 in | ★☆☆☆☆ |
| February | -2° | -12° | 11,4 in | ★☆☆☆☆ |
| March | 1° | -9° | 13,4 in | ★☆☆☆☆ |
| April | 6° | -6° | 5,1 in | ★☆☆☆☆ |
| May | 11° | -1° | 3,7 in | ★★☆☆☆ |
| June | 17° | 4° | 3,6 in | ★★☆☆☆ |
| July | 28° | 13° | 1,1 in | ★★☆☆☆ |
| August | 28° | 15° | 2,4 in | ★★☆☆☆ |
| September | 23° | 10° | 3,8 in | ★★☆☆☆ |
| October | 13° | 0° | 8,5 in | ★☆☆☆☆ |
| November | 4° | -6° | 14,9 in | ★☆☆☆☆ |
| December | 3° | -6° | 21,9 in | ★☆☆☆☆ |
Climate type: Polar. Source: Open-Meteo archive (ERA5).
Weather map for Mount Rainier
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
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
Go in June, July and August. 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
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?
Mount Rainier is a mountain in Washington. Its coordinates are 46.8523, -121.7603. It lies in North America.
What is the weather like in Mount Rainier right now?
It is currently 19°F (-7°C) with clear. Humidity is 16% and wind is 5 mph.
When is the best time to visit Mount Rainier?
June, July and August offer the most comfortable conditions in Mount Rainier, which has a polar climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Mount Rainier in?
Mount Rainier observes America/Los_Angeles (UTC-07:00). The local time is 4:32 PM.
What is the nearest airport to Mount Rainier?
The closest airports are Seattle-Tacoma International Airport (SEA), 49 mi away, Portland International Airport (PDX), 96 mi away and Vancouver International Airport (YVR), 175 mi away.
What are the top things to do in Mount Rainier?
Popular options include Mount Rainier National Park, 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 (mountains) - 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 22, 2026 at 4:32 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
