Current Conditions

SeaTac, Washington

59°F15°C

Partly Cloudy

Wind

S 4 mph7 km/h

Humidity

76%

Cloud Cover

69%

As of Tuesday, September 22, 2026 at 10:12 PM PDT

Today's Outlook

Night

Mostly cloudy, with a low around 53°F12°C. Light wind from the SSE around 4 mph7 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 66°F19°C	Low 53°F12°C	Precip 0 in0 mm—	Cloud 78%	Wind SSW 5 mph8 km/h	Wednesday: Overcast and mild, with a high of 66°F19°C and morning low of 54°F12°C. Light wind from the SSW around 5 mph8 km/h. Wednesday Night: Mostly cloudy, with a low around 53°F12°C. Light wind from the SSE around 4 mph7 km/h.
Light Rain	High 61°F16°C	Low 51°F10°C	Precip 0.2 in5.2 mm94%	Cloud 96%	Wind N 4 mph6 km/h	Thursday: Overcast and mild, with a high of 61°F16°C and morning low of 52°F11°C. Light wind from the N around 4 mph7 km/h. 35% chance of drizzle in the afternoon. Dry air. Thursday Night: Overcast, with a low around 51°F10°C. Light wind from the NNE around 3 mph6 km/h. 94% chance of light rain in the evening.
Rain	High 59°F15°C	Low 53°F11°C	Precip 0.61 in15.6 mm98%	Cloud 70%	Wind SSW 9 mph14 km/h	Friday: Overcast and mild, with a high of 59°F15°C. Breezy from the SSW at 11 to 13 mph18 to 20 km/h. 98% chance of rain throughout the day. Friday Night: Mostly cloudy, with a low around 53°F11°C. Breezy from the S at 7 to 9 mph11 to 15 km/h. 94% chance of showers throughout the night.
Partly Cloudy	High 62°F16°C	Low 48°F9°C	Precip 0.01 in0.2 mm6%	Cloud 60%	Wind NE 5 mph8 km/h	Saturday: Mostly cloudy and mild, with a high of 62°F16°C and morning low of 49°F10°C. Light wind from the NNE around 4 mph7 km/h. Dry air. Saturday Night: Mostly cloudy, with a low around 48°F9°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h.
Partly Cloudy	High 63°F17°C	Low 48°F9°C	Precip 0.01 in0.3 mm8%	Cloud 53%	Wind N 4 mph7 km/h	Sunday: Partly cloudy and mild, with a high of 63°F17°C and morning low of 51°F11°C. Light wind from the NNW around 5 mph8 km/h. Dry air. Sunday Night: Mostly cloudy, with a low around 48°F9°C. Light wind from the NE around 4 mph6 km/h.
Drizzle	High 63°F17°C	Low 49°F9°C	Precip 0.07 in1.7 mm28%	Cloud 80%	Wind S 5 mph8 km/h	Monday: Overcast and mild, with a high of 63°F17°C and morning low of 50°F10°C. Light wind from the SSW around 5 mph8 km/h. 23% chance of drizzle throughout the day. Dry air. Monday Night: Mostly cloudy, with a low around 49°F9°C. Light wind from the S around 5 mph8 km/h. 28% chance of drizzle in the evening.
Light Rain	High 63°F17°C	Low 54°F12°C	Precip 0.2 in5.1 mm46%	Cloud 80%	Wind S 6 mph10 km/h	Tuesday: Overcast and mild, with a high of 63°F17°C and morning low of 55°F13°C. Breezy from the SSW at 7 mph11 km/h. 46% chance of light rain throughout the day. Tuesday Night: Mostly cloudy, with a low around 54°F12°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 42% chance of light rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	66°F19°C	53°F12°C	0 in0 mm· —	78%	Partly Cloudy	SSW 5 mph8 km/h
DayOvercast and mild, with a high of 66°F19°C and morning low of 54°F12°C. Light wind from the SSW around 5 mph8 km/h. NightMostly cloudy, with a low around 53°F12°C. Light wind from the SSE around 4 mph7 km/h.
	ThursdaySep 24	61°F16°C	51°F10°C	0.2 in5.2 mm· 94%	96%	Light Rain	N 4 mph6 km/h
DayOvercast and mild, with a high of 61°F16°C and morning low of 52°F11°C. Light wind from the N around 4 mph7 km/h. 35% chance of drizzle in the afternoon. Dry air. NightOvercast, with a low around 51°F10°C. Light wind from the NNE around 3 mph6 km/h. 94% chance of light rain in the evening.
	FridaySep 25	59°F15°C	53°F11°C	0.61 in15.6 mm· 98%	70%	Rain	SSW 9 mph14 km/h
DayOvercast and mild, with a high of 59°F15°C. Breezy from the SSW at 11 to 13 mph18 to 20 km/h. 98% chance of rain throughout the day. NightMostly cloudy, with a low around 53°F11°C. Breezy from the S at 7 to 9 mph11 to 15 km/h. 94% chance of showers throughout the night.
	SaturdaySep 26	62°F16°C	48°F9°C	0.01 in0.2 mm· 6%	60%	Partly Cloudy	NE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 62°F16°C and morning low of 49°F10°C. Light wind from the NNE around 4 mph7 km/h. Dry air. NightMostly cloudy, with a low around 48°F9°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h.
	SundaySep 27	63°F17°C	48°F9°C	0.01 in0.3 mm· 8%	53%	Partly Cloudy	N 4 mph7 km/h
DayPartly cloudy and mild, with a high of 63°F17°C and morning low of 51°F11°C. Light wind from the NNW around 5 mph8 km/h. Dry air. NightMostly cloudy, with a low around 48°F9°C. Light wind from the NE around 4 mph6 km/h.
	MondaySep 28	63°F17°C	49°F9°C	0.07 in1.7 mm· 28%	80%	Drizzle	S 5 mph8 km/h
DayOvercast and mild, with a high of 63°F17°C and morning low of 50°F10°C. Light wind from the SSW around 5 mph8 km/h. 23% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 49°F9°C. Light wind from the S around 5 mph8 km/h. 28% chance of drizzle in the evening.
	TuesdaySep 29	63°F17°C	54°F12°C	0.2 in5.1 mm· 46%	80%	Light Rain	S 6 mph10 km/h
DayOvercast and mild, with a high of 63°F17°C and morning low of 55°F13°C. Breezy from the SSW at 7 mph11 km/h. 46% chance of light rain throughout the day. NightMostly cloudy, with a low around 54°F12°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 42% chance of light rain throughout the night.
	WednesdaySep 30	63°F17°C	53°F12°C	0.15 in3.7 mm· 32%	70%	Showers	SSW 5 mph8 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 53°F12°C. Light wind from the SW around 5 mph9 km/h. 28% chance of showers throughout the day. NightMostly cloudy, with a low around 53°F12°C. Light wind from the S around 5 mph8 km/h. 32% chance of light rain throughout the night.
	ThursdayOct 1	62°F17°C	52°F11°C	0.12 in3.1 mm· 35%	66%	Showers	SSW 5 mph9 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 53°F12°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 35% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 52°F11°C. Light wind from the S around 5 mph8 km/h. 31% chance of drizzle throughout the night.
	FridayOct 2	62°F17°C	50°F10°C	0.08 in2 mm· 25%	56%	Drizzle	NNE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 51°F11°C. Light wind from the NNW around 5 mph9 km/h. 25% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 50°F10°C. Light wind from the E around 5 mph7 km/h. 24% chance of drizzle throughout the night.
	SaturdayOct 3	65°F18°C	49°F9°C	0.04 in1.1 mm· 13%	45%	Drizzle	NNE 5 mph8 km/h
DayPartly cloudy and mild, with a high of 65°F18°C and morning low of 49°F10°C. Light wind from the N around 5 mph9 km/h. 13% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 49°F9°C. Light wind from the NE around 5 mph7 km/h. 10% chance of drizzle before dawn.
	SundayOct 4	66°F19°C	50°F10°C	0.05 in1.2 mm· 15%	53%	Drizzle	ENE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 51°F11°C. Light wind from the NNW around 5 mph8 km/h. 15% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 50°F10°C. Light wind from the E around 5 mph7 km/h. 11% chance of drizzle in the evening.
	MondayOct 5	67°F19°C	51°F11°C	0.09 in2.3 mm· 17%	49%	Drizzle	ESE 5 mph8 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 52°F11°C. Light wind from the NNW around 5 mph8 km/h. 17% chance of drizzle throughout the day. NightPartly cloudy, with a low around 51°F11°C. Light wind from the ESE around 5 mph8 km/h. 15% chance of drizzle throughout the night.
	TuesdayOct 6	67°F20°C	52°F11°C	0.12 in3 mm· 17%	46%	Drizzle	SSE 5 mph9 km/h
DayPartly cloudy and mild, with a high of 67°F20°C and morning low of 54°F12°C. Light wind from the WSW around 6 mph9 km/h. 17% chance of drizzle throughout the day. NightPartly cloudy, with a low around 52°F11°C. Light wind from the SE around 5 mph8 km/h. 15% chance of drizzle throughout the night.
	WednesdayOct 7	67°F19°C	53°F12°C	0.1 in2.5 mm· 24%	53%	Showers	S 5 mph8 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 54°F12°C. Light wind from the SSW around 5 mph9 km/h. 24% chance of drizzle throughout the day. NightMostly cloudy, with a low around 53°F12°C. Light wind from the SSE around 5 mph8 km/h. 18% chance of showers throughout the night.

Nearby Cities

Tukwila2 mi4 km Burien3 mi5 km Des Moines4 mi6 km Bryn Mawr-Skyway4 mi6 km Renton4 mi7 km Kent5 mi9 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: 47.4485°N, 122.2922°W·Elevation: 80m·Timezone: America/Los_Angeles·Population: 28,215