Current Conditions

Mercer Island, Washington

62°F16°C

Rain

Wind

SE 5 mph8 km/h

Humidity

76%

Cloud Cover

89%

As of Wednesday, September 2, 2026 at 8:49 AM PDT

Today's Outlook

Day

Overcast and mild, with a high of 66°F19°C and morning low of 62°F16°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. 100% chance of rain throughout the day.

Night

Mostly cloudy, with a low around 58°F14°C. Breezy from the S at 8 to 11 mph13 to 18 km/h. 85% chance of showers in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 66°F19°C	Low 58°F14°C	Precip 0.22 in5.5 mm100%	Cloud 79%	Wind S 8 mph13 km/h	Wednesday: Overcast and mild, with a high of 66°F19°C and morning low of 62°F16°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. 100% chance of rain throughout the day. Wednesday Night: Mostly cloudy, with a low around 58°F14°C. Breezy from the S at 8 to 11 mph13 to 18 km/h. 85% chance of showers in the evening.
Light Rain	High 65°F18°C	Low 56°F13°C	Precip 0.14 in3.6 mm81%	Cloud 81%	Wind S 5 mph8 km/h	Thursday: Overcast and mild, with a high of 65°F18°C and morning low of 57°F14°C. Breezy from the S at 6 to 7 mph9 to 11 km/h. 81% chance of light rain throughout the day. Thursday Night: Mostly cloudy, with a low around 56°F13°C. Breezy from the SSE at 5 to 7 mph8 to 12 km/h. 74% chance of light rain throughout the night.
Drizzle	High 68°F20°C	Low 54°F12°C	Precip 0.06 in1.4 mm32%	Cloud 66%	Wind NNE 3 mph4 km/h	Friday: Mostly cloudy and mild, with a high of 68°F20°C and morning low of 56°F13°C. Light wind from the NNW around 2 mph4 km/h. 32% chance of drizzle throughout the day. Friday Night: Mostly cloudy, with a low around 54°F12°C. Light wind from the NE around 3 mph4 km/h. 29% chance of drizzle throughout the night.
Showers	High 69°F21°C	Low 52°F11°C	Precip 0.05 in1.2 mm42%	Cloud 51%	Wind NNE 3 mph5 km/h	Saturday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 55°F13°C. Light wind from the N around 4 mph6 km/h. 42% chance of showers in the afternoon. Saturday Night: Partly cloudy, with a low around 52°F11°C. Light wind from the NE around 3 mph5 km/h. 28% chance of drizzle in the evening.
Clear	High 72°F22°C	Low 52°F11°C	Precip 0.01 in0.2 mm5%	Cloud 35%	Wind N 4 mph6 km/h	Sunday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 55°F13°C. Light wind from the N around 4 mph7 km/h. Sunday Night: Partly cloudy, with a low around 52°F11°C. Light wind from the NE around 3 mph5 km/h.
Drizzle	High 67°F20°C	Low 56°F14°C	Precip 0.04 in0.9 mm26%	Cloud 69%	Wind SSW 6 mph10 km/h	Monday: Mostly cloudy and mild, with a high of 67°F20°C and morning low of 58°F15°C. Breezy from the SSW at 7 mph11 km/h. 26% chance of drizzle throughout the day. Monday Night: Mostly cloudy, with a low around 56°F14°C. Light wind from the S around 5 mph8 km/h. 13% chance of drizzle in the evening.
Drizzle	High 67°F20°C	Low 58°F14°C	Precip 0.09 in2.3 mm29%	Cloud 72%	Wind SSW 5 mph7 km/h	Tuesday: Overcast and mild, with a high of 67°F20°C and morning low of 59°F15°C. Light wind from the SW around 5 mph7 km/h. 29% chance of drizzle throughout the day. Tuesday Night: Mostly cloudy, with a low around 58°F14°C. Light wind from the S around 5 mph7 km/h. 19% chance of drizzle throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	66°F19°C	58°F14°C	0.22 in5.5 mm· 100%	79%	Rain	S 8 mph13 km/h
DayOvercast and mild, with a high of 66°F19°C and morning low of 62°F16°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. 100% chance of rain throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the S at 8 to 11 mph13 to 18 km/h. 85% chance of showers in the evening.
	ThursdaySep 3	65°F18°C	56°F13°C	0.14 in3.6 mm· 81%	81%	Light Rain	S 5 mph8 km/h
DayOvercast and mild, with a high of 65°F18°C and morning low of 57°F14°C. Breezy from the S at 6 to 7 mph9 to 11 km/h. 81% chance of light rain throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the SSE at 5 to 7 mph8 to 12 km/h. 74% chance of light rain throughout the night.
	FridaySep 4	68°F20°C	54°F12°C	0.06 in1.4 mm· 32%	66%	Drizzle	NNE 3 mph4 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 56°F13°C. Light wind from the NNW around 2 mph4 km/h. 32% chance of drizzle throughout the day. NightMostly cloudy, with a low around 54°F12°C. Light wind from the NE around 3 mph4 km/h. 29% chance of drizzle throughout the night.
	SaturdaySep 5	69°F21°C	52°F11°C	0.05 in1.2 mm· 42%	51%	Showers	NNE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 55°F13°C. Light wind from the N around 4 mph6 km/h. 42% chance of showers in the afternoon. NightPartly cloudy, with a low around 52°F11°C. Light wind from the NE around 3 mph5 km/h. 28% chance of drizzle in the evening.
	SundaySep 6	72°F22°C	52°F11°C	0.01 in0.2 mm· 5%	35%	Clear	N 4 mph6 km/h
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 55°F13°C. Light wind from the N around 4 mph7 km/h. NightPartly cloudy, with a low around 52°F11°C. Light wind from the NE around 3 mph5 km/h.
	MondaySep 7	67°F20°C	56°F14°C	0.04 in0.9 mm· 26%	69%	Drizzle	SSW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 67°F20°C and morning low of 58°F15°C. Breezy from the SSW at 7 mph11 km/h. 26% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F14°C. Light wind from the S around 5 mph8 km/h. 13% chance of drizzle in the evening.
	TuesdaySep 8	67°F20°C	58°F14°C	0.09 in2.3 mm· 29%	72%	Drizzle	SSW 5 mph7 km/h
DayOvercast and mild, with a high of 67°F20°C and morning low of 59°F15°C. Light wind from the SW around 5 mph7 km/h. 29% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Light wind from the S around 5 mph7 km/h. 19% chance of drizzle throughout the night.
	WednesdaySep 9	70°F21°C	56°F13°C	0.08 in2 mm· 22%	54%	Drizzle	WSW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 58°F14°C. Light wind from the W around 5 mph8 km/h. 22% chance of drizzle throughout the day. NightPartly cloudy, with a low around 56°F13°C. Light wind from the SE around 4 mph7 km/h. 18% chance of drizzle throughout the night.
	ThursdaySep 10	69°F20°C	56°F13°C	0.08 in2.1 mm· 33%	59%	Drizzle	SSW 5 mph7 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 57°F14°C. Light wind from the SW around 5 mph8 km/h. 33% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F13°C. Light wind from the S around 4 mph7 km/h. 22% chance of drizzle throughout the night.
	FridaySep 11	68°F20°C	56°F13°C	0.1 in2.6 mm· 31%	57%	Drizzle	SSW 5 mph8 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 57°F14°C. Light wind from the SW around 5 mph8 km/h. 31% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F13°C. Light wind from the S around 5 mph7 km/h. 20% chance of drizzle throughout the night.
	SaturdaySep 12	68°F20°C	55°F13°C	0.09 in2.2 mm· 22%	60%	Drizzle	SSW 5 mph7 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 56°F14°C. Light wind from the SW around 5 mph8 km/h. 22% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Light wind from the SSE around 4 mph7 km/h. 22% chance of drizzle throughout the night.
	SundaySep 13	69°F21°C	54°F12°C	0.09 in2.3 mm· 24%	56%	Drizzle	SSW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 57°F14°C. Light wind from the WSW around 5 mph8 km/h. 24% chance of drizzle throughout the day. NightMostly cloudy, with a low around 54°F12°C. Light wind from the SSE around 4 mph7 km/h. 24% chance of drizzle throughout the night.
	MondaySep 14	68°F20°C	55°F13°C	0.1 in2.6 mm· 27%	55%	Drizzle	SSW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 56°F14°C. Light wind from the SW around 6 mph9 km/h. 27% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Light wind from the SSE around 5 mph8 km/h. 22% chance of drizzle throughout the night.
	TuesdaySep 15	69°F20°C	55°F13°C	0.14 in3.6 mm· 30%	55%	Showers	S 5 mph8 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 58°F14°C. Light wind from the SW around 5 mph9 km/h. 30% chance of showers throughout the day. NightMostly cloudy, with a low around 55°F13°C. Light wind from the SSE around 5 mph8 km/h. 26% chance of drizzle throughout the night.
	WednesdaySep 16	69°F20°C	55°F13°C	0.09 in2.2 mm· 23%	54%	Drizzle	S 5 mph8 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 58°F14°C. Light wind from the WSW around 5 mph8 km/h. 23% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Light wind from the SE around 5 mph7 km/h. 19% chance of drizzle throughout the night.

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

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