Observed 2:55 AM PDT at KSEA

SeaTac, WA weather

Clear and 43°6°.

Mostly agree

Now 43°6°

Clear · Feels like 39°4°

Wind: 7 mph11 km/h; From the east-southeast. Up to 7 mph11 km/h through 3 PM
Dew point: 37°3°; Comfortable
UV tomorrow: 2Low; Low all day (peak 2)
Air quality: 58Moderate; PM2.5 (fine particles) · tomorrow good
Pressure: 30.29 inHg1026 hPa; Falling slowly · −0.03 inHg−0.9 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 39°4° today at 6 AM
Above 50°10° today by 1 PM
High 56°13° today at 4 PM
Rain tomorrow 5 AM–tomorrow night 11 PM (60%, 0.72 in18 mm)

TonightNear 41°5° · Mostly cloudy
This morningUp to 47°8° by 11 AM · Mostly cloudy
This afternoonUp to 56°13° by 4 PM · Cloudy
TonightDown to 44°7° by 4 AM · Rain 5–6 AM (60%)
Tomorrow morningUp to 49°9° by 11 AM · Rain all morning (60%)
Tomorrow afternoonUp to 56°13° by 4 PM · Rain all afternoon (60%)
Tomorrow nightDown to 47°8° by 2 AM · Rain 6–11 PM (30%)

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 3a	Partly cloudy	41°5° (likely 38°3° to 41°5°)	41°5°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	91%	70%	0
Sat 4a	Cloudy	40°4° (likely 38°3° to 41°5°)	40°4°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	91%	75%	0
Sat 5a	Partly cloudy	41°5° (likely 38°3° to 41°5°)	41°5°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	88%	81%	0
Sat 6a	Cloudy	39°4° (likely 38°3° to 40°4°)	39°4°	0%	1 mph2 km/h from SSE, gusts 4 mph6 km/h	90%	80%	0
Sat 7a	Cloudy	39°4° (likely 38°3° to 39°4°)	39°4°	0%	2 mph3 km/h from SSE, gusts 4 mph6 km/h	91%	80%	0
Sat 8a	Cloudy	40°4° (likely 38°3° to 40°4°)	40°4°	0%	2 mph3 km/h from SSE, gusts 2 mph4 km/h	88%	82%	0
Sat 9a	Cloudy	41°5° (likely 40°4° to 42°6°)	41°5°	5%	2 mph3 km/h from SSE, gusts 3 mph5 km/h	87%	78%	0
Sat 10a	Cloudy	44°7° (likely 44°7° to 46°8°)	44°7°	5%	1 mph2 km/h from S, gusts 4 mph7 km/h	81%	86%	1
Sat 11a	Cloudy	47°8° (likely 47°8° to 49°9°)	47°8°	5%	1 mph2 km/h from S, gusts 5 mph9 km/h	72%	81%	1
Sat 12p	Cloudy	49°9° (likely 49°9° to 52°11°)	49°9°	5%	1 mph2 km/h from SSW, gusts 6 mph10 km/h	69%	81%	2
Sat 1p	Cloudy	52°11° (likely 51°11° to 55°13°)	52°11°	5%	2 mph3 km/h from SSW, gusts 6 mph9 km/h	63%	90%	2
Sat 2p	Cloudy	54°12° (likely 51°11° to 55°13°)	54°12°	5%	3 mph5 km/h from WSW, gusts 6 mph9 km/h	57%	85%	1
Sat 3p	Cloudy	55°13° (likely 52°11° to 57°14°)	55°13°	5%	3 mph5 km/h from WSW, gusts 8 mph12 km/h	54%	85%	1
Sat 4p	Cloudy	56°13° (likely 52°11° to 56°13°)	56°13°	5%	3 mph5 km/h from WSW, gusts 7 mph12 km/h	52%	84%	1
Sat 5p	Cloudy	54°12° (likely 52°11° to 56°13°)	54°12°	0%	3 mph5 km/h from W, gusts 5 mph9 km/h	54%	86%	1
Sat 6p	Cloudy	53°12° (likely 50°10° to 54°12°)	53°12°	0%	2 mph3 km/h from WNW, gusts 4 mph6 km/h	60%	81%	0
Sat 7p	Cloudy	50°10° (likely 49°9° to 53°12°)	50°10°	0%	2 mph3 km/h from SSE, gusts 4 mph6 km/h	67%	82%	0
Sat 8p	Cloudy	49°9° (likely 47°8° to 51°11°)	49°9°	5%	2 mph3 km/h from E, gusts 3 mph4 km/h	68%	80%	0
Sat 9p	Cloudy	48°9° (likely 47°8° to 51°11°)	48°9°	5%	2 mph3 km/h from S, gusts 4 mph6 km/h	71%	83%	0
Sat 10p	Cloudy	48°9° (likely 47°8° to 49°9°)	48°9°	5%	2 mph3 km/h from SSW, gusts 6 mph10 km/h	73%	79%	0
Sat 11p	Cloudy	48°9° (likely 45°7° to 48°9°)	48°9°	5%, 0.02 in0.5 mm	2 mph3 km/h from SSW, gusts 5 mph8 km/h	74%	86%	0
Sun 12a	Cloudy	46°8° (likely 45°7° to 48°9°)	46°8°	5%, 0.02 in0.5 mm	2 mph3 km/h from SSE, gusts 5 mph8 km/h	81%	96%	0
Sun 1a	Cloudy	46°8° (likely 44°7° to 48°9°)	46°8°	5%, 0.02 in0.5 mm	2 mph3 km/h from S, gusts 5 mph8 km/h	83%	98%	0
Sun 2a	Cloudy	46°8° (likely 43°6° to 48°9°)	45°7°	10%, 0.02 in0.5 mm	3 mph5 km/h from SSE, gusts 5 mph7 km/h	81%	99%	0
Sun 3a	Cloudy	45°7° (likely 42°6° to 48°9°)	44°7°	10%, 0.02 in0.5 mm	3 mph5 km/h from SE, gusts 5 mph8 km/h	85%	93%	0
Sun 4a	Cloudy	44°7° (likely 41°5° to 47°8°)	44°7°	20%, 0.02 in0.5 mm	2 mph3 km/h from SSE, gusts 6 mph10 km/h	84%	93%	0
Sun 5a	Cloudy	45°7° (likely 42°6° to 48°9°)	45°7°	60%, 0.07 in1.8 mm	2 mph3 km/h from N, gusts 5 mph8 km/h	82%	98%	0
Sun 6a	Cloudy	44°7° (likely 44°7° to 47°8°)	44°7°	60%, 0.07 in1.8 mm	2 mph3 km/h from N, gusts 6 mph10 km/h	87%	96%	0
Sun 7a	Cloudy	43°6° (likely 43°6° to 47°8°)	43°6°	20%, 0.07 in1.8 mm	2 mph3 km/h from N, gusts 5 mph8 km/h	88%	100%	0
Sun 8a	Cloudy	45°7° (likely 43°6° to 47°8°)	44°7°	20%, 0.07 in1.8 mm	3 mph5 km/h from NE, gusts 4 mph6 km/h	87%	98%	0
Sun 9a	Rain	45°7° (likely 44°7° to 48°9°)	44°7°	30%, 0.07 in1.8 mm	3 mph5 km/h from NE, gusts 4 mph6 km/h	89%	97%	0
Sun 10a	Rain	47°8° (likely 47°8° to 51°11°)	46°8°	30%, 0.07 in1.8 mm	3 mph5 km/h from NE, gusts 6 mph10 km/h	90%	100%	1
Sun 11a	Rain	49°9° (likely 48°9° to 55°13°)	48°9°	60%, 0.04 in1 mm	3 mph5 km/h from E, gusts 6 mph10 km/h	83%	100%	1
Sun 12p	Rain	50°10° (likely 49°9° to 57°14°)	49°9°	60%, 0.04 in1 mm	3 mph5 km/h from E, gusts 7 mph11 km/h	82%	100%	2
Sun 1p	Rain	53°12° (likely 49°9° to 60°16°)	53°12°	50%, 0.04 in1 mm	3 mph5 km/h from E, gusts 9 mph14 km/h	75%	99%	1
Sun 2p	Rain	55°13° (likely 50°10° to 61°16°)	55°13°	30%, 0.04 in1 mm	5 mph8 km/h from E, gusts 9 mph15 km/h	70%	98%	2
Sun 3p	Rain	55°13° (likely 50°10° to 62°17°)	55°13°	50%, 0.04 in1 mm	5 mph8 km/h from E, gusts 9 mph14 km/h	68%	84%	2
Sun 4p	Rain	56°13° (likely 50°10° to 63°17°)	56°13°	60%, 0.04 in1 mm	5 mph8 km/h from E, gusts 9 mph14 km/h	67%	49%	1
Sun 5p	Rain	55°13° (likely 50°10° to 61°16°)	55°13°	30%, 0.01 in0.3 mm	3 mph5 km/h from NNE, gusts 10 mph16 km/h	70%	50%	1
Sun 6p	Rain	54°12° (likely 49°9° to 55°13°)	54°12°	30%, 0.01 in0.3 mm	3 mph5 km/h from NNE, gusts 10 mph15 km/h	74%	61%	0
Sun 7p	Rain	52°11° (likely 49°9° to 52°11°)	52°11°	30%, 0.01 in0.3 mm	3 mph5 km/h from NNE, gusts 7 mph11 km/h	78%	56%	0
Sun 8p	Rain	49°9° (likely 48°9° to 50°10°)	48°9°	30%, 0.01 in0.3 mm	3 mph5 km/h from NNE, gusts 6 mph10 km/h	81%	60%	0
Sun 9p	Rain	48°9° (likely 48°9° to 49°9°)	47°8°	30%, 0.01 in0.3 mm	3 mph5 km/h from NNE, gusts 6 mph10 km/h	82%	63%	0
Sun 10p	Rain	49°9° (likely 47°8° to 49°9°)	48°9°	30%, 0.01 in0.3 mm	3 mph5 km/h from NNE, gusts 5 mph8 km/h	82%	58%	0
Sun 11p	Rain	49°9° (likely 45°7° to 49°9°)	48°9°	40%	3 mph5 km/h from NE, gusts 4 mph7 km/h	82%	66%	0
Mon 12a	Rain	48°9° (likely 43°6° to 48°9°)	48°9°	40%	3 mph5 km/h from NE, gusts 6 mph9 km/h	84%	88%	0
Mon 1a	Rain	48°9° (likely 42°6° to 49°9°)	47°8°	40%	3 mph5 km/h from NE, gusts 6 mph10 km/h	86%	58%	0
Mon 2a	Rain	47°8° (likely 40°4° to 49°9°)	46°8°	40%	3 mph5 km/h from NE, gusts 7 mph11 km/h	88%	59%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Mostly cloudy. High 56°13°, low 39°4°. Typical 58°14° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 44°7°
  60% chance · 0.17 in4.3 mm
Official NWS forecast
Today: Partly sunny. High near 56, with temperatures falling to around 54 in the afternoon. South southwest wind around 3 mph.
Tonight: Mostly cloudy. Low around 39, with temperatures rising to around 41 overnight. Southeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
52°11°–57°14°
Low, likely
37°3°–40°4°
Typical high / low
58°14° / 45°7°
Wind
6 mph9 km/h, gusts 11 mph18 km/h
UV peak
2
Tomorrow, Oct 25. Rain. High 57°14°, low 45°7°. Typical 57°14° / 45°7°. Rain 0.26 in6.6 mm, 60% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Rain, 45°7°
  60% chance · 0.39 in9.9 mm
2. Afternoon
  noon–6 PM
  Rain, 56°13°
  60% chance · 0.21 in5.3 mm
3. Evening
  6 PM–midnight
  Rain, 49°9°
  40% chance · 0.05 in1.3 mm
4. Overnight
  midnight–6 AM
  Rain, 43°6°
  40% chance
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 57. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Night: A chance of rain. Mostly cloudy, with a low around 45. Northeast wind around 3 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
51°11°–63°17°
Low, likely
41°5°–47°8°
Typical high / low
57°14° / 45°7°
Wind
8 mph13 km/h, gusts 15 mph24 km/h
UV peak
2
Monday, Oct 26. Rain. High 58°14°, low 44°7°. Typical 57°14° / 45°7°. Rain 0.06 in1.5 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 46°8°
  20% chance · 0.05 in1.2 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain before 11am. Partly sunny, with a high near 58. Chance of precipitation is 20%.
Night: A slight chance of rain after 11pm. Mostly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
54°12°–58°14°
Low, likely
39°4°–47°8°
Typical high / low
57°14° / 45°7°
Wind
5 mph9 km/h, gusts 16 mph25 km/h
UV peak
3
Tuesday, Oct 27. Rain. High 58°14°, low 44°7°. Typical 57°14° / 45°7°. Rain 0.16 in4.1 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 47°8°
  20% chance · 0.02 in0.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 49°9°
  30% chance · 0.04 in1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 47°8°
  50% chance · 0.1 in2.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain. Mostly cloudy, with a high near 58.
Night: A chance of rain. Mostly cloudy, with a low around 44.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
54°12°–58°14°
Low, likely
44°7°–48°9°
Typical high / low
57°14° / 45°7°
Wind
13 mph22 km/h, gusts 29 mph46 km/h
UV peak
2
Wednesday, Oct 28. Rain. High 55°13°, low 41°5°. Typical 56°13° / 44°7°. Rain 0.32 in8.1 mm, 60% chance. Mostly agree.
1. Morning
  6 AM–noon
  Showers, 46°8°
  50% chance · 0.1 in2.5 mm
2. Afternoon
  noon–6 PM
  Drizzle, 50°10°
  60% chance · 0.08 in2 mm
3. Evening
  6 PM–midnight
  Drizzle, 46°8°
  60% chance · 0.03 in0.8 mm
4. Overnight
  midnight–6 AM
  Drizzle, 42°6°
  50% chance · 0.21 in5.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 55.
Night: Rain likely. Mostly cloudy, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
50°10°–55°13°
Low, likely
41°5°–45°7°
Typical high / low
56°13° / 44°7°
Wind
12 mph19 km/h, gusts 26 mph42 km/h
UV peak
2
Thursday, Oct 29. Rain. High 54°12°, low 40°4°. Typical 56°13° / 44°7°. Rain 0.47 in12 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 42°5°
  40% chance · 0.11 in2.7 mm
2. Afternoon
  noon–6 PM
  Drizzle, 49°9°
  40% chance · 0.14 in3.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 44°7°
  30% chance · 0.06 in1.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 42°5°
  30% chance · 0.06 in1.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 54.
Night: A slight chance of rain before 5am. Mostly cloudy, with a low around 40.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
46°8°–54°12°
Low, likely
40°4°–42°6°
Typical high / low
56°13° / 44°7°
Wind
9 mph14 km/h, gusts 20 mph33 km/h
UV peak
2
Friday, Oct 30. Drizzle. High 55°13°, low 40°4°. Typical 56°13° / 44°7°. Rain 0.11 in2.8 mm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 49°10°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 44°7°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 39°4°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 55.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
46°8°–55°13°
Low, likely
37°3°–43°6°
Typical high / low
56°13° / 44°7°
Wind
8 mph13 km/h, gusts 18 mph29 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 49°9°, low 37°3°. Typical 56°13° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 48°9°
  Dry
3. Evening
  6 PM–midnight
  Clear, 42°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
45°7°–52°11°
Low, likely
35°2°–39°4°
Typical high / low
56°13° / 44°7°
Wind
6 mph9 km/h, gusts 15 mph23 km/h
UV peak
3
Sunday, Nov 1. Sunny. High 50°10°, low 38°3°. Typical 55°13° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
48°9°–53°12°
Low, likely
36°2°–41°5°
Typical high / low
55°13° / 44°7°
Wind
8 mph13 km/h, gusts 16 mph26 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 52°11°, low 40°4°. Typical 55°13° / 43°6°. Rain 0.06 in1.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 53°12°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 44°7°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
47°8°–57°14°
Low, likely
37°3°–43°6°
Typical high / low
55°13° / 43°6°
Wind
6 mph10 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 56°, low 39°.
Tomorrow
63% chance of rain, high 57°, low 45°.
Monday
Dry, high 58°, low 44°.
Rest of week
Highs 49–58°; chance of precipitation on Wednesday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (SEW) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Cedar River (WA) at Renton

5.2 mi

Below flood stage

Level: 8.6 ft
Flow: 323 cfs

Forecast peak 8.6 ft Sat 5 AM

Reading from Sat 2:15 AM · NWS gauge page

Green River (WA) at Kent

2.1 mi

Level: 11.4 ft
Flow: 372 cfs

Reading from Sat 1:15 AM · NWS gauge page

Green River (WA) at Tukwila

2.8 mi

Level: 2.3 ft

Reading from Sat 1:15 AM · NWS gauge page

Duwamish River at Tukwila

3.1 mi

Level: 4.5 ft

Reading from Sat 1:45 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 67% less heating than a typical week.

This week 33Typical 101

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 20
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 6 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 37°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Seattle Tacoma Area · official normals 1991–2020 · records 1945–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

On average 1°0° warmer than normal (daily mean temperature).

−1°SunOct 18
+2°+1°MonOct 19
+2°+1°TueOct 20
+2°+1°WedOct 21
+1°ThuOct 22
—FriOct 23
—SatOct 24

SeaTac weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 23 min; Losing 3 min 17 s a day; shortest Dec 21, 1 h 57 min less
Golden hour: 5:21–6:24 PM; Morning 7:21–8:24 AM
Blue hour: 6:24–6:36 PM; Morning 7:09–7:21 AM; first light 7:09 AM

Stars tonight? Poor

Clouds most of the night (about 77% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:57 AM · rises 5:06 PM
Full moon: Oct 25
New moon: Nov 8

Looking southeast from SeaTac. The highest point on the skyline is about 14,300 ft, 48 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.