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As of 06:50 PDT

Weather in SeaTac, WA

55°Current weather

SeaTac, Sunday, 9 August, 06:50

Clear. Feels like 55°. High 78°, low 55°.

Pressure30.09 inHg
Wind3 mph S
Humidity91%
Visibility6.2 mi
Dew point53°

Two-week outlook for SeaTac, WA: week one averages a high of 83.1° and week two 86.6°, so week two runs 3.4° warmer than week one. Around 0.0 inches of precipitation are expected over the 14 days, across 0 wet days. The nearest weekend, August 9: 78°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)83.1°56.4°0.0 in / 0 d—
2nd (August 16 – August 22)86.6°58.9°0.0 in / 0 d—

Weekend weather

Sun, August 9
Partly cloudy
78°55°
no precip.
Sat, August 15
Overcast
88°59°
no precip.
Sun, August 16
Mostly clear
90°59°
no precip.
Sat, August 22
Clear
88°60°
no precip.
Mon, 1077° / 52°0Overcast
77 °Overcast

SeaTac, Monday, 10 August

Overcast. High 77°, low 52°.

Pressure30.09 inHg
Wind4 mph SW
Humidity45%
Visibility6.2 mi
Dew point50°
Tue, 1184° / 55°0Clear
84 °Clear

SeaTac, Tuesday, 11 August

Clear. High 84°, low 55°.

Pressure30.09 inHg
Wind1.4 mph W
Humidity37%
Visibility6.2 mi
Dew point50°
Wed, 1282° / 56°0Clear
82 °Clear

SeaTac, Wednesday, 12 August

Clear. High 82°, low 56°.

Pressure30.00 inHg
Wind2.2 mph W
Humidity40%
Visibility6.2 mi
Dew point52°
Thu, 1383° / 57°0Clear
83 °Clear

SeaTac, Thursday, 13 August

Clear. High 83°, low 57°.

Pressure29.85 inHg
Wind9.6 mph N
Humidity32%
Visibility—
Dew point47°
Fri, 1490° / 60°0Partly cloudy
90 °Partly cloudy

SeaTac, Friday, 14 August

Partly cloudy. High 90°, low 60°.

Pressure29.85 inHg
Wind7.5 mph NW
Humidity25%
Visibility—
Dew point46°
Sat, 1588° / 59°0Overcast
88 °Overcast

SeaTac, Saturday, 15 August

Overcast. High 88°, low 59°.

Pressure29.97 inHg
Wind6.9 mph NW
Humidity29%
Visibility—
Dew point46°
Sun, 1690° / 59°0Mostly clear
90 °Mostly clear

SeaTac, Sunday, 16 August

Mostly clear. High 90°, low 59°.

Pressure30.03 inHg
Wind6.9 mph NW
Humidity26%
Visibility—
Dew point46°
Mon, 1783° / 56°0Partly cloudy
83 °Partly cloudy

SeaTac, Monday, 17 August

Partly cloudy. High 83°, low 56°.

Pressure30.12 inHg
Wind8.1 mph NW
Humidity32%
Visibility—
Dew point46°
Tue, 1885° / 57°0Clear
85 °Clear

SeaTac, Tuesday, 18 August

Clear. High 85°, low 57°.

Pressure30.09 inHg
Wind7.9 mph N
Humidity28%
Visibility—
Dew point45°
Wed, 1988° / 60°0Clear
88 °Clear

SeaTac, Wednesday, 19 August

Clear. High 88°, low 60°.

Pressure30.06 inHg
Wind8.9 mph N
Humidity31%
Visibility—
Dew point51°
Thu, 2086° / 60°0Clear
86 °Clear

SeaTac, Thursday, 20 August

Clear. High 86°, low 60°.

Pressure30.06 inHg
Wind8.9 mph N
Humidity33%
Visibility—
Dew point51°
Fri, 2186° / 59°0Clear
86 °Clear

SeaTac, Friday, 21 August

Clear. High 86°, low 59°.

Pressure30.00 inHg
Wind8.1 mph N
Humidity29%
Visibility—
Dew point47°
Sat, 2288° / 60°0Clear
88 °Clear

SeaTac, Saturday, 22 August

Clear. High 88°, low 60°.

Pressure30.00 inHg
Wind8.7 mph N
Humidity29%
Visibility—
Dew point49°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in SeaTac, WA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.