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Mercer Island, WA Weather Conditions

Updated: Tue Jul 14th 2026 12:15 AM PDT

Clear

65^°F 18^°C

Feels Like 65^°F / 18^°C

Mercer Island, WA weather condition is Clear and 65°F.

Today's Weather in Mercer Island,WA

The current weather in Mercer Island WA as of 12:15 AM PDT on Tue Jul 14th 2026, has a sky condition of Clear with the visibility of 9 mile(s). It is 65 degrees fahrenheit. The barometric pressure is 30.06 - measured by inches of mercury - and is steady since its last observation. The humidity is 47 percent that's steady since the last report, with a dew point of 44 degrees fahrenheit which is steady. Wind direction is from the North-Northeast at 3.4 miles per hour, gusting at 7 miles per hour. Sunrise is at 5:26 AM and Sunset is at 9:03 PM. The moon phase is a New Moon moon rising at 5:02 AM. Thank you for listening to the weather report from LocalConditions.com!

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Sun & Moon

Sun

Sunrise: 5:26 AM

Sunset: 9:03 PM

As of:

Moon

Moonrise: 5:02 AM

Moonset: 9:36 PM

Phase: New Moon Moon

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

Next 5 Days...

Sunny

Sunny with a high of 84°F and a low of 55°F. 1%% possible chance of rain predicted. Winds will be light at 8mph at times. Humidity levels are comfortable, sitting around 47%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 84° \| Lo 55°	47%	1%	0%	7.6 mph

Sunny

Sunny with a high of 87°F and a low of 57°F. 2%% possible chance of rain predicted. Winds will be light at 10mph at times. Humidity levels are comfortable, sitting around 47%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 87° \| Lo 57°	47%	2%	0%	9.6 mph

Sunny

Sunny with a high of 88°F and a low of 56°F. 36%% possible chance of rain predicted with an estimated 0.04in. Winds will be light at 8mph at times. Humidity levels are comfortable, sitting around 55%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 88° \| Lo 56°	55%	36% \| est. 0.04in	0%	7.4 mph

Sunny

Sunny with a high of 84°F and a low of 56°F. 36%% possible chance of rain predicted with an estimated 0.02in. Winds will be light at 8mph at times. The humidity will be on the higher side, reaching around 66%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 84° \| Lo 56°	66%	36% \| est. 0.02in	0%	7.6 mph

Sunny

Sunny with a high of 80°F and a low of 52°F. 4%% 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 80° \| Lo 52°	63%	4%	0%	7.2 mph

Yesterday 5-Day Wind

Weather Radar Map

Hourly Temperature

The current temperature today is 65^°F. The morning temperature of 55°^F is lowest at 6am with the daytime high of 84°^F at 3pm and a low around 58°^F at 11pm is expected.

Hourly Barometric Pressure

The highest pressure today is 30.1^inHg at 7am and lowest being 29.99^inHg at 7pm.

Hourly Wind Speeds

The fastest wind is reported to be 7.6^mph at 4pm, while the slowest is 0.4^mph around 7am; expect wind gusts peaking 11.6^mph at 8pm. View live wind conditions in Mercer Island

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