Current Conditions

Mercer Island, Washington

45°F7°C

Clear

Wind

SE 4 mph7 km/h

Humidity

87%

Cloud Cover

22%

As of Tuesday, October 13, 2026 at 12:18 AM PDT

Today's Outlook

Day

Mostly clear and mild, with a high of 59°F15°C. Light wind from the NW around 3 mph4 km/h. Dry air.

Night

Partly cloudy, with a low around 46°F8°C. Light wind from the ESE around 4 mph6 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 59°F15°C	Low 46°F8°C	Precip 0 in0 mm—	Cloud 20%	Wind ESE 4 mph6 km/h	Monday: Mostly clear and mild, with a high of 59°F15°C. Light wind from the NW around 3 mph4 km/h. Dry air. Monday Night: Partly cloudy, with a low around 46°F8°C. Light wind from the ESE around 4 mph6 km/h.
Cloudy	High 58°F15°C	Low 44°F7°C	Precip 0 in0 mm—	Cloud 91%	Wind SSE 4 mph7 km/h	Tuesday: Overcast and mild, with a high of 58°F15°C and morning low of 45°F7°C. Light wind from the SSE around 4 mph6 km/h. Dry air. Tuesday Night: Overcast, with a low around 44°F7°C. Light wind from the SE around 5 mph8 km/h.
Drizzle	High 62°F17°C	Low 51°F11°C	Precip 0.02 in0.4 mm20%	Cloud 56%	Wind ESE 5 mph8 km/h	Wednesday: Mostly cloudy and mild, with a high of 62°F17°C and morning low of 53°F12°C. Light wind from the SE around 5 mph8 km/h. 13% chance of drizzle in the morning. Dry air. Wednesday Night: Partly cloudy, with a low around 51°F11°C. Light wind from the ESE around 6 mph9 km/h. 20% chance of drizzle before dawn.
Clear	High 69°F20°C	Low 47°F8°CFeels 44°F7°C	Precip 0 in0 mm—	Cloud 24%	Wind NE 6 mph9 km/h	Thursday: Partly cloudy and warm, with a high of 69°F20°C and morning low of 48°F9°C. Light wind from the NNE around 5 mph9 km/h. Dry air. Thursday Night: Mostly clear, with a low around 47°F8°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h.
Partly Cloudy	High 70°F21°C	Low 50°F10°CFeels 47°F8°C	Precip 0 in0 mm—	Cloud 58%	Wind SE 6 mph10 km/h	Friday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 51°F11°C. Light wind from the SE around 5 mph8 km/h. Dry air. Friday Night: Partly cloudy, with a low around 50°F10°C. Breezy from the SE at 7 to 9 mph11 to 14 km/h.
Showers	High 59°F15°C	Low 50°F10°C	Precip 0.15 in3.7 mm67%	Cloud 60%	Wind S 8 mph13 km/h	Saturday: Mostly cloudy and mild, with a high of 59°F15°C. Breezy from the SSW at 8 to 11 mph13 to 17 km/h. 67% chance of showers in the morning. Saturday Night: Mostly cloudy, with a low around 50°F10°C. Breezy from the SSE at 8 to 11 mph13 to 18 km/h. 38% chance of drizzle overnight.
Partly Cloudy	High 56°F13°C	Low 45°F7°CFeels 42°F6°C	Precip 0.01 in0.3 mm8%	Cloud 65%	Wind NE 5 mph8 km/h	Sunday: Mostly cloudy and mild, with a high of 56°F13°C and morning low of 45°F7°C. Light wind from the NNE around 5 mph8 km/h. Dry air. Sunday Night: Mostly cloudy, with a low around 45°F7°C. Light wind from the ENE around 5 mph8 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	MondayOct 12	59°F15°C	46°F8°C	0 in0 mm· —	20%	Clear	ESE 4 mph6 km/h
DayMostly clear and mild, with a high of 59°F15°C. Light wind from the NW around 3 mph4 km/h. Dry air. NightPartly cloudy, with a low around 46°F8°C. Light wind from the ESE around 4 mph6 km/h.
	TuesdayOct 13	58°F15°C	44°F7°C	0 in0 mm· —	91%	Cloudy	SSE 4 mph7 km/h
DayOvercast and mild, with a high of 58°F15°C and morning low of 45°F7°C. Light wind from the SSE around 4 mph6 km/h. Dry air. NightOvercast, with a low around 44°F7°C. Light wind from the SE around 5 mph8 km/h.
	WednesdayOct 14	62°F17°C	51°F11°C	0.02 in0.4 mm· 20%	56%	Drizzle	ESE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 53°F12°C. Light wind from the SE around 5 mph8 km/h. 13% chance of drizzle in the morning. Dry air. NightPartly cloudy, with a low around 51°F11°C. Light wind from the ESE around 6 mph9 km/h. 20% chance of drizzle before dawn.
	ThursdayOct 15	69°F20°C	47°F8°C Feels 44°F7°C	0 in0 mm· —	24%	Clear	NE 6 mph9 km/h
DayPartly cloudy and warm, with a high of 69°F20°C and morning low of 48°F9°C. Light wind from the NNE around 5 mph9 km/h. Dry air. NightMostly clear, with a low around 47°F8°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h.
	FridayOct 16	70°F21°C	50°F10°C Feels 47°F8°C	0 in0 mm· —	58%	Partly Cloudy	SE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 51°F11°C. Light wind from the SE around 5 mph8 km/h. Dry air. NightPartly cloudy, with a low around 50°F10°C. Breezy from the SE at 7 to 9 mph11 to 14 km/h.
	SaturdayOct 17	59°F15°C	50°F10°C	0.15 in3.7 mm· 67%	60%	Showers	S 8 mph13 km/h
DayMostly cloudy and mild, with a high of 59°F15°C. Breezy from the SSW at 8 to 11 mph13 to 17 km/h. 67% chance of showers in the morning. NightMostly cloudy, with a low around 50°F10°C. Breezy from the SSE at 8 to 11 mph13 to 18 km/h. 38% chance of drizzle overnight.
	SundayOct 18	56°F13°C	45°F7°C Feels 42°F6°C	0.01 in0.3 mm· 8%	65%	Partly Cloudy	NE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 56°F13°C and morning low of 45°F7°C. Light wind from the NNE around 5 mph8 km/h. Dry air. NightMostly cloudy, with a low around 45°F7°C. Light wind from the ENE around 5 mph8 km/h.
	MondayOct 19	54°F12°C	47°F8°C Feels 44°F7°C	0.11 in2.9 mm· 39%	79%	Light Rain	SSE 6 mph9 km/h
DayOvercast and mild, with a high of 54°F12°C and morning low of 47°F9°C. Light wind from the S around 6 mph9 km/h. 39% chance of light rain in the morning. Dry air. NightMostly cloudy, with a low around 47°F8°C. Light wind from the SE around 6 mph9 km/h. 35% chance of drizzle overnight.
	TuesdayOct 20	54°F12°C	46°F8°C	0.09 in2.4 mm· 28%	55%	Drizzle	NNE 6 mph9 km/h
DayMostly cloudy and mild, with a high of 54°F12°C and morning low of 47°F8°C. Light wind from the N around 6 mph9 km/h. 27% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 46°F8°C. Light wind from the ENE around 6 mph9 km/h. 28% chance of drizzle overnight.
	WednesdayOct 21	56°F13°C	44°F7°C Feels 41°F5°C	0.04 in0.9 mm· 9%	41%	Partly Cloudy	NNE 5 mph8 km/h
DayPartly cloudy and mild, with a high of 56°F13°C and morning low of 45°F7°C. Light wind from the N around 5 mph8 km/h. Dry air. NightPartly cloudy, with a low around 44°F7°C. Light wind from the NE around 5 mph8 km/h.
	ThursdayOct 22	56°F13°C	45°F7°C Feels 41°F5°C	0.09 in2.3 mm· 26%	51%	Drizzle	SE 5 mph9 km/h
DayMostly cloudy and mild, with a high of 56°F13°C and morning low of 45°F7°C. Light wind from the S around 5 mph9 km/h. 25% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 45°F7°C. Light wind from the ESE around 5 mph9 km/h. 26% chance of drizzle overnight.
	FridayOct 23	55°F13°C	46°F8°C	0.11 in2.7 mm· 32%	59%	Drizzle	S 5 mph8 km/h
DayMostly cloudy and mild, with a high of 55°F13°C and morning low of 47°F8°C. Light wind from the SSW around 5 mph8 km/h. 32% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 46°F8°C. Light wind from the SE around 5 mph9 km/h. 26% chance of drizzle overnight.
	SaturdayOct 24	55°F13°C	46°F8°C Feels 43°F6°C	0.06 in1.6 mm· 19%	56%	Drizzle	ESE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 55°F13°C and morning low of 46°F8°C. Light wind from the SSW around 5 mph8 km/h. 19% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 46°F8°C. Light wind from the E around 5 mph9 km/h. 18% chance of drizzle overnight.
	SundayOct 25	56°F13°C	46°F8°C Feels 43°F6°C	0.07 in1.7 mm· 18%	56%	Drizzle	NE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 56°F13°C and morning low of 47°F8°C. Light wind from the N around 5 mph8 km/h. 18% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 46°F8°C. Light wind from the ENE around 5 mph9 km/h. 14% chance of drizzle overnight.
	MondayOct 26	56°F13°C	46°F8°C Feels 43°F6°C	0.07 in1.7 mm· 18%	54%	Drizzle	NE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 56°F13°C and morning low of 47°F8°C. Light wind from the N around 5 mph8 km/h. 18% chance of drizzle in the morning. Dry air. NightMostly cloudy, with a low around 46°F8°C. Light wind from the ENE around 5 mph9 km/h. 17% chance of drizzle overnight.

Nearby Cities

Columbia City3 mi4 km Bellevue3 mi5 km Bryn Mawr-Skyway5 mi9 km West Lake Sammamish6 mi9 km Seattle6 mi9 km Renton6 mi10 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 47.5707°N, 122.2221°W·Elevation: 102m·Timezone: America/Los_Angeles·Population: 25,042