
Wintry Precipitation for the Northeast; Increasing Severe Weather Threat from the Plains to the Midwest
Wintry mixed precipitation will spread across the Northeast today, with light snow and ice accumulations forecast through southern New England. Meanwhile, the threat of severe weather will be increasing from the southern Plains to the Midwest, with rounds of showers and thunderstorms, some severe, expected each day through Friday. Read More >
Current conditions at
Boeing Field - King County International Airport (KBFI)
Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.
Overcast
48°F
9°C
| Humidity | 87% |
| Wind Speed | SE 6 MPH |
| Barometer | 30.05 in (1017.61 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 10.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 03 Mar 07:20 AM PST |
Extended Forecast for
Mercer Island WA
Today
High: 54 °F
Chance Rain
then RainTonight

Low: 49 °F
Rain
Wednesday

High: 51 °F
Rain
Wednesday Night

Low: 45 °F
Rain
Thursday

High: 50 °F
Rain
Thursday Night
Low: 45 °F
Rain Likely
then Chance
RainFriday

High: 53 °F
Rain
Friday Night

Low: 49 °F
Rain
Saturday

High: 55 °F
Rain Likely
Detailed Forecast
Today
Rain, mainly before 4pm. High near 54. South wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain. Low around 49. South wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. Steady temperature around 51. Southwest wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 45. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. High near 50. South wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, mainly after 10am. High near 53. Chance of precipitation is 80%.
Friday Night
Rain, mainly before 10pm. Cloudy, with a low around 49.
Saturday
Rain likely. Cloudy, with a high near 55.
Saturday Night
Rain likely, mainly before 10pm. Cloudy, with a low around 49.
Sunday
Rain likely. Cloudy, with a high near 55.
Sunday Night
Rain likely. Mostly cloudy, with a low around 44.
Monday
Rain. Mostly cloudy, with a high near 51.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Mercer Island WA
47.58°N 122.25°W (Elev. 105 ft)
47.58°N 122.25°W (Elev. 105 ft)
7:00 am PST Mar 3, 2026
7am PST Mar 3, 2026-6pm PDT Mar 9, 2026


