Today | Weather | Monday, December 15, 2025
Active Weather Warnings

Weather in Bellevue, Washington

01:22 PM
Now
Rainy Weather
57° F
Feels Like 50°
Precipitation 42 %
Wind 15 mph
UV Index (0 - 11+) 0
Humidity 84 %
Today
Rainy Weather
Day 57°
Night 46°
Precipitation 100 %
Wind 14 mph
UV Index (0 - 11+) 0

Bellevue Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 15, 2024)
Rainy Weather

Day

46°

Night

39°

Wind

4 mph

Precipitation

96 %

Air Quality in Bellevue

NOW
29 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.23 µg/m³
PM10 1.41 µg/m³
O3 0.032 ppm
NO2 0.9 ppb
SO2 0.1 ppb
CO 0.09 ppm
NH3 0.04 µg/m³
NO 0.01 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)
PM2.51.23 µg/m³
PM101.41 µg/m³
O361.99 µg/m³
NO21.63 µg/m³
SO20.37 µg/m³
CO105.51 µg/m³
NH30.04 µg/m³
NO0.01 µg/m³

Weather Alerts and Warnings for Bellevue

Severe Future Possible

Flood Watch

Flood Watch issued December 15 at 5:28AM PST until December 18 at 4:00PM PST by NWS Seattle WA
Dec 15, 10:00 AM Dec 18, 4:00 PM
WHAT: Flooding caused by excessive rainfall continues to be
possible.

WHERE: Portions of northwest and west central Washington,
including the following counties, in northwest Washington,
Clallam, Grays Harbor, Jefferson, Kitsap, Mason, Skagit and
Whatcom. In west central Washington, King, Lewis, Pierce,
Snohomish and Thurston.

WHEN: From 10 AM PST this morning through Thursday afternoon.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas. Storm drains and ditches may
become clogged with debris. Area creeks and streams are running
high and could flood with more heavy rain.

ADDITIONAL DETAILS:
- A series of weather systems this week will bring another
round of significant rainfall to western Washington through
Wednesday. Preliminary liquid totals of 2 to 6 inches,
locally higher in some spots, will cause additional sharp
rises to area rivers.
Urban and small stream flooding remains possible for areas
with poor drainage.

Very saturated soils will maintain increased risk for
potential landslides and debris flows off of burn scars.

- Http://www.weather.gov/safety/flood
+ Read More
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Updated: Dec 15, 12:04 PM Source: NWS Alert
Moderate Expected Likely

Wind Advisory

Wind Advisory issued December 15 at 9:32AM PST until December 15 at 10:00PM PST by NWS Seattle WA
Dec 15, 9:32 AM Dec 15, 10:00 PM
WHAT: For the Wind Advisory, southwest winds 20 to 30 mph with
gusts up to 55 mph. For the High Wind Watch, southwest winds 25 to
45 mph with gusts 55 to 65 mph possible.

WHERE: Portions of northwest and west central Washington.

WHEN: For the Wind Advisory, until 10 PM PST this evening. For
the High Wind Watch, from Tuesday evening through Wednesday
morning.

IMPACTS: Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles. Gusty winds could blow
around unsecured objects. Tree limbs could be blown down and a few
power outages may result.

ADDITIONAL DETAILS: Due to saturated grounds from previous heavy
rain, expect more widespread impacts with these winds.
+ Read More
Monitor the latest forecasts and warnings for updates. Use extra caution when driving, especially if operating a high profile vehicles. Secure outdoor objects. Secure outdoor objects.
Updated: Dec 15, 12:04 PM Source: NWS Alert
Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued December 15 at 9:28AM PST by NWS Seattle WA
Dec 15, 9:28 AM Dec 16, 3:00 AM
Rainfall from the past week has increased soil moisture to high
levels across western Washington. Additional rainfall of around 2-6
inches is expected early this week. 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.
This rain event could act as a trigger for new landslides.

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 15, 12:04 PM Source: NWS Alert