Today | Weather | Sunday, December 14, 2025
Active Weather Warnings

Weather in Renton, Washington

05:14 AM
Now
Rainy Weather
48° F
Feels Like 45°
Precipitation 54 %
Wind 7 mph
Humidity 93 %
Today
Cloudy Weather
Day 57°
Night 52°
Precipitation 55 %
Wind 6 mph
UV Index (0 - 11+) 0

Renton Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 14, 2024)
Rainy Weather

Day

54°

Night

39°

Wind

9 mph

Precipitation

91 %

Air Quality in Renton

NOW
21 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 5.03 µg/m³
PM10 6 µg/m³
O3 0.020 ppm
NO2 5.6 ppb
SO2 0.2 ppb
CO 0.17 ppm
NH3 0.12 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.55.03 µg/m³
PM106 µg/m³
O338.35 µg/m³
NO210.53 µg/m³
SO20.51 µg/m³
CO199.97 µg/m³
NH30.12 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Renton

Severe Immediate Observed

Flood Warning

Flood Warning issued December 14 at 1:16AM PST by NWS Seattle WA
Dec 14, 1:16 AM Dec 14, 9:30 AM
...The Flood Warning continues for the following rivers in
Washington...

Cedar River At Renton affecting King County.

Cedar River Near Landsburg affecting King County.

Green River Near Auburn affecting King County.

WHAT: Minor flooding is occurring and minor flooding is forecast.

WHERE: Green River near Auburn.

WHEN: Until further notice.

IMPACTS: At 10,000.0 cfs, the Green River will flood low areas of
the middle Green River valley with water over SE Green Valley Rd.
Some flooding is possible at a few low spots along the banks of
the Green River in Auburn, including near Issac Evans Park in
lower Mill Creek basin between Auburn and Kent due to backwater. A
flow of 9000 cfs feet on the Green River corresponds to a phase 3
flood in the King County flood system.

ADDITIONAL DETAILS:
- At 11:45 PM PST Saturday the flow was 11,300.0 cfs.
- Flood flow is 9,000.0 cfs.
- Recent Activity...The maximum river flow in the 24 hours
ending at 11:45 PM PST Saturday was 12,600.0 cfs.
- Forecast...The river is expected to remain between 11,000 cfs
and 11,500 cfs through Monday night.Additional rises are
possible thereafter.
- http://www.weather.gov/safety/flood
+ Read More
Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by this morning at 930 AM PST.
Updated: Dec 14, 3:38 AM Source: NWS Alert
Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued December 13 at 8:12AM PST by NWS Seattle WA
Dec 13, 8:12 AM Dec 14, 11:00 AM
Rainfall of 2 to 12 inches over the past several days, with locally
higher amounts to 17 inches, has increased soil moisture to very
high levels across western Washington. This amount of rain will put
extra pressure on soil instability, leading to an increased threat of
landslides and debris flows, especially from recent burned areas.

Numerous landslides have already been reported in the western
Cascades in western Washington. More landslides are possible.

Areas most susceptible to landslides debris flows under these
conditions are steep coastal bluffs, other steep hillsides or
road cuts, and recent burned areas. A diminishing threat of
landslides and debris flows will continue for several days after
the rain ends.

For more information about current conditions, visit
www.weather.gov/seattle, select Hydrology, and then scroll down
for the links to the landslide information pages.

For more information on landslides, visit the website for the
Washington State Department of Natural Resources landslide
geologic hazards at: http://bit.ly/2mtA3wn
Updated: Dec 14, 3:38 AM Source: NWS Alert
Moderate Expected Likely

Wind Advisory

Wind Advisory issued December 14 at 2:38AM PST until December 15 at 10:00PM PST by NWS Seattle WA
Dec 14, 10:00 PM Dec 15, 10:00 PM
WHAT: South winds 20 to 25 mph with gusts 45 to 50 mph expected.

WHERE: Portions of northwest and west central Washington.

WHEN: From 10 PM this evening to 10 PM PST Monday.

IMPACTS: Gusty winds could blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

ADDITIONAL DETAILS: Given the very saturated ground, expect that
impacts may be more widespread than normally associated with these
particular wind speeds.
+ Read More
Use extra caution when driving, especially if operating a high profile vehicles. Secure outdoor objects.
Updated: Dec 14, 3:38 AM Source: NWS Alert