Current Weather in Mercer Island, WA
55°F 13°C
Feels Like 54°F / 12°C
Today's Weather in Mercer Island,WA
Listen to this weather report - press Read
- Barometer 30 inHg. steady
- Humidity 88% falling
- Heat Index 55°F
- Wind from NNE. 2.7 mph
- Wind Gust 5.1 miles per hour
- Wind Chill 55°F
- UV Index 0
- Dew Point 52°F falling
- Visibility 6 mi.
- Sunrise 6:33 AM
- Sunset 7:42 PM
- Moonrise Not Observable
- Moonset 4:31 PM
- Moon Phase Waning Crescent Moon 29%
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5 Day Forecast
Sat
Sun
TueHeavy Rain
Heavy Rain with a high of 72°F and a low of 52°F. Probable rainfall forecasted, having a 77% chance with an estimated 3.53in. Winds will be light at 7mph at times. The humidity will be on the higher side, reaching around 67%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 72° | Lo 52° | 67% | 77% | est. 3.53in | 0% | 6.7 mph |
Sunny
Sunny with a high of 74°F and a low of 52°F. 5% possible chance of rain predicted. Winds will be light at 10mph at times. The humidity will be on the higher side, reaching around 63%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 74° | Lo 52° | 63% | 5% | 0% | 9.6 mph |
Sunny
Sunny with a high of 77°F and a low of 52°F. 5% possible chance of rain predicted. Winds will be light at 8mph at times. Humidity levels are comfortable, sitting around 60%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 77° | Lo 52° | 60% | 5% | 0% | 7.4 mph |
Overcast
Overcast with a high of 75°F and a low of 55°F. 13% possible chance of rain predicted. Winds will be light at 8mph at times. The humidity will be on the higher side, reaching around 63%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 75° | Lo 55° | 63% | 13% | 0% | 7.6 mph |
Sunny
Sunny with a high of 79°F and a low of 55°F. Probable rainfall forecasted, having a 57% chance with an estimated 0.05in. Winds will be light at 9mph at times. The humidity will be on the higher side, reaching around 67%.
| Temperature | Humidity | Rainfall | Snow | Wind |
|---|---|---|---|---|
| Hi 79° | Lo 55° | 67% | 57% | est. 0.05in | 0% | 8.7 mph |
Weather Radar Map
Live Mercer Island, WA weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Wednesday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.
Hourly Temperature
The current temperature today is 55°F. The morning temperature of 52°F is lowest at 6am with the daytime high of 72°F at 4pm and a low around 58°F at 11pm is expected.
Hourly Barometric Pressure
The highest pressure today is 30.06inHg at 8am and lowest being 29.99inHg at 3pm.
Hourly Wind Speeds
The fastest wind is reported to be 6.7mph at 4pm, while the slowest is 0.7mph around 9am; expect wind gusts peaking 17.9mph at 4pm.
Current National Weather
As we head into the Labor Day weekend, expect some dramatic weather changes. Midwest will see strong storms rolling in, moving toward the Mid-Atlantic and Southeast with heavy rain. Utah might experience heavy rain due to a moving front. While the West Coast and Northeast enjoy cooler temperatures, the Heartland is set for more heat with temperatures feeling like 105 to 110 degrees. Let's dive into the details for each region.
Storms Moving South
Midwest to Southeast: Over the Labor Day weekend, thunderstorms could be severe from the Midwest across the Ohio Valley, and into the Mid-Atlantic and Southeast. Watch out for heavy rain and a slight chance of flash flooding, especially near the Mid-Atlantic coast this afternoon into Sunday.
Rain on the Horizon
Western U.S.: A front moving through might cause heavy rain in Utah on Sunday. The rain can be intense, especially in urban areas and where the ground is prone to flooding, like dry washes and burn scars.
Heat and Cool Balance
Midsection of the Country: The Nation's Heartland will continue to experience oppressive heat with heat indices up to 110 degrees. Temperatures will remain high during the day and night.
Northeast: Cooler air is finally making its way here, providing a break from the heat. Expect chillier mornings with lows in the 40s and 50s and daytime highs between the mid-70s and low 80s.
Showers and Thunderstorms
Northwestern U.S.: A deep upper low brings showers and storms as it moves inland. Temperatures here will be 10 to 20 degrees cooler than normal, with freezing conditions at higher elevations.
Northern Plains: Thunderstorms are brewing around a strengthening low-pressure system, particularly affecting the northern High Plains in the latter half of the weekend.
This weather report is valid for ZIP code 98040, accurately covering the area of Mercer Island, WA.
National Outlook
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