Hourly Weather Forecast for SeaTac, Washington 98158 - The Weather Channel | Weather.com
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Hourly Weather-

As of 10:40 am PDT
alertLevel2

Flood Watch

+1 More

Rain

Rain likely for the next several hours. Locally heavy rainfall possible.

Tuesday, March 17

11 am

Showers Showers
50°
Rain drop 62%
S 14 mph
Subtract

Showers

  • Temperature feels like
    Feels Like45°
  • WindS 14 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover97%
  • Rain drop
    Rain Amount0.01 in

11:15 am

Showers Showers
50°
Rain drop 47%
S 14 mph

11:30 am

Showers Showers
50°
Rain drop 47%
SSW 14 mph

12 pm

Showers Showers
51°
Rain drop 61%
SSW 14 mph
Add

Showers

  • Temperature feels like
    Feels Like46°
  • WindSSW 14 mph
  • Humidity
    Humidity89%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover99%
  • Rain drop
    Rain Amount0.01 in

1 pm

Showers Showers
51°
Rain drop 46%
SSW 13 mph
Add

Showers

  • Temperature feels like
    Feels Like46°
  • WindSSW 13 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.01 in

2 pm

Showers Showers
52°
Rain drop 35%
S 11 mph
Add

Showers

  • Temperature feels like
    Feels Like48°
  • WindS 11 mph
  • Humidity
    Humidity89%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0 in

3 pm

Cloudy Cloudy
52°
Rain drop 20%
S 10 mph
Add

Cloudy

  • Temperature feels like
    Feels Like48°
  • WindS 10 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover98%
  • Rain drop
    Rain Amount0 in

4 pm

Showers Showers
52°
Rain drop 52%
S 10 mph
Add

Showers

  • Temperature feels like
    Feels Like49°
  • WindS 10 mph
  • Humidity
    Humidity87%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover98%
  • Rain drop
    Rain Amount0.02 in
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5 pm

Showers Showers
52°
Rain drop 45%
S 10 mph
Add

Showers

  • Temperature feels like
    Feels Like48°
  • WindS 10 mph
  • Humidity
    Humidity89%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover99%
  • Rain drop
    Rain Amount0.02 in

6 pm

Rain Rain
52°
Rain drop 79%
SSW 9 mph
Add

Rain

  • Temperature feels like
    Feels Like49°
  • WindSSW 9 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.05 in

7 pm

Rain Rain
52°
Rain drop 94%
S 8 mph
Add

Rain

  • Temperature feels like
    Feels Like49°
  • WindS 8 mph
  • Humidity
    Humidity91%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.04 in

8 pm

Rain Rain
51°
Rain drop 93%
S 8 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 8 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.04 in

9 pm

Rain Rain
51°
Rain drop 95%
S 9 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 9 mph
  • Humidity
    Humidity95%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.04 in

10 pm

Rain Rain
51°
Rain drop 94%
S 9 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 9 mph
  • Humidity
    Humidity95%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.04 in

11 pm

Rain Rain
51°
Rain drop 89%
S 8 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 8 mph
  • Humidity
    Humidity96%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.03 in

Wednesday, March 18

12 am

Rain Rain
51°
Rain drop 92%
S 8 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 8 mph
  • Humidity
    Humidity96%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.04 in

1 am

Rain Rain
51°
Rain drop 73%
S 8 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 8 mph
  • Humidity
    Humidity96%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.04 in

2 am

Rain Rain
51°
Rain drop 82%
S 9 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 9 mph
  • Humidity
    Humidity95%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.06 in

3 am

Rain Rain
51°
Rain drop 81%
S 10 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 10 mph
  • Humidity
    Humidity93%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.04 in

4 am

Rain Rain
51°
Rain drop 83%
S 11 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 11 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.04 in
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5 am

Rain Rain
51°
Rain drop 82%
SSW 11 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindSSW 11 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.03 in

6 am

Showers Light Rain
52°
Rain drop 86%
S 11 mph
Add

Light Rain

  • Temperature feels like
    Feels Like48°
  • WindS 11 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.02 in

7 am

Rain Rain
52°
Rain drop 86%
SSW 11 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindSSW 11 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.03 in

8 am

Showers Light Rain
52°
Rain drop 81%
SSW 11 mph
Add

Light Rain

  • Temperature feels like
    Feels Like48°
  • WindSSW 11 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover98%
  • Rain drop
    Rain Amount0.02 in

9 am

Rain Rain
52°
Rain drop 75%
S 10 mph
Add

Rain

  • Temperature feels like
    Feels Like48°
  • WindS 10 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.03 in

10 am

Showers Light Rain
52°
Rain drop 69%
S 10 mph
Add

Light Rain

  • Temperature feels like
    Feels Like48°
  • WindS 10 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover99%
  • Rain drop
    Rain Amount0.02 in

11 am

Showers Showers
52°
Rain drop 58%
SSW 10 mph
Add

Showers

  • Temperature feels like
    Feels Like49°
  • WindSSW 10 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover97%
  • Rain drop
    Rain Amount0.01 in

12 pm

Showers Showers
53°
Rain drop 54%
SSW 10 mph
Add

Showers

  • Temperature feels like
    Feels Like50°
  • WindSSW 10 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover99%
  • Rain drop
    Rain Amount0.01 in

1 pm

Showers Showers
53°
Rain drop 50%
SSW 9 mph
Add

Showers

  • Temperature feels like
    Feels Like50°
  • WindSSW 9 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover99%
  • Rain drop
    Rain Amount0.01 in

2 pm

Showers Showers
53°
Rain drop 40%
S 10 mph
Add

Showers

  • Temperature feels like
    Feels Like50°
  • WindS 10 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover95%
  • Rain drop
    Rain Amount0 in

3 pm

Showers Showers
53°
Rain drop 54%
SSW 9 mph
Add

Showers

  • Temperature feels like
    Feels Like51°
  • WindSSW 9 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover98%
  • Rain drop
    Rain Amount0.01 in

4 pm

Showers Showers
54°
Rain drop 52%
SSW 9 mph
Add

Showers

  • Temperature feels like
    Feels Like51°
  • WindSSW 9 mph
  • Humidity
    Humidity89%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover99%
  • Rain drop
    Rain Amount0.01 in
Advertisement

5 pm

Showers Showers
54°
Rain drop 45%
S 9 mph
Add

Showers

  • Temperature feels like
    Feels Like52°
  • WindS 9 mph
  • Humidity
    Humidity88%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.01 in

6 pm

Showers Showers
54°
Rain drop 52%
SSW 8 mph
Add

Showers

  • Temperature feels like
    Feels Like52°
  • WindSSW 8 mph
  • Humidity
    Humidity88%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.01 in

7 pm

Showers Showers
53°
Rain drop 58%
S 8 mph
Add

Showers

  • Temperature feels like
    Feels Like51°
  • WindS 8 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.01 in

8 pm

Showers Showers
53°
Rain drop 51%
S 8 mph
Add

Showers

  • Temperature feels like
    Feels Like50°
  • WindS 8 mph
  • Humidity
    Humidity92%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.01 in

9 pm

Showers Showers
52°
Rain drop 39%
SSW 9 mph
Add

Showers

  • Temperature feels like
    Feels Like49°
  • WindSSW 9 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover97%
  • Rain drop
    Rain Amount0.01 in

10 pm

Showers Showers
52°
Rain drop 36%
SSW 8 mph
Add

Showers

  • Temperature feels like
    Feels Like49°
  • WindSSW 8 mph
  • Humidity
    Humidity92%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.01 in

11 pm

Cloudy Cloudy
52°
Rain drop 24%
S 8 mph
Add

Cloudy

  • Temperature feels like
    Feels Like49°
  • WindS 8 mph
  • Humidity
    Humidity93%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover98%
  • Rain drop
    Rain Amount0 in

Thursday, March 19

12 am

Showers Few Showers
51°
Rain drop 30%
S 8 mph
Add

Few Showers

  • Temperature feels like
    Feels Like49°
  • WindS 8 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover91%
  • Rain drop
    Rain Amount0 in

1 am

Cloudy Cloudy
51°
Rain drop 24%
S 9 mph
Add

Cloudy

  • Temperature feels like
    Feels Like48°
  • WindS 9 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover97%
  • Rain drop
    Rain Amount0 in

2 am

Showers Few Showers
51°
Rain drop 32%
S 8 mph
Add

Few Showers

  • Temperature feels like
    Feels Like48°
  • WindS 8 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover88%
  • Rain drop
    Rain Amount0 in

3 am

Showers Few Showers
51°
Rain drop 30%
S 9 mph
Add

Few Showers

  • Temperature feels like
    Feels Like47°
  • WindS 9 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0.01 in

4 am

Showers Showers
51°
Rain drop 42%
S 10 mph
Add

Showers

  • Temperature feels like
    Feels Like47°
  • WindS 10 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover94%
  • Rain drop
    Rain Amount0.01 in
Advertisement

5 am

Showers Showers
51°
Rain drop 43%
S 10 mph
Add

Showers

  • Temperature feels like
    Feels Like47°
  • WindS 10 mph
  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover98%
  • Rain drop
    Rain Amount0.01 in

6 am

Showers Showers
51°
Rain drop 36%
S 10 mph
Add

Showers

  • Temperature feels like
    Feels Like47°
  • WindS 10 mph
  • Humidity
    Humidity92%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover98%
  • Rain drop
    Rain Amount0 in

7 am

Showers Few Showers
51°
Rain drop 32%
S 11 mph
Add

Few Showers

  • Temperature feels like
    Feels Like48°
  • WindS 11 mph
  • Humidity
    Humidity90%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover98%
  • Rain drop
    Rain Amount0 in

8 am

Showers Showers
52°
Rain drop 40%
S 9 mph
Add

Showers

  • Temperature feels like
    Feels Like48°
  • WindS 9 mph
  • Humidity
    Humidity89%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover96%
  • Rain drop
    Rain Amount0.02 in

9 am

Showers Showers
52°
Rain drop 46%
S 9 mph
Add

Showers

  • Temperature feels like
    Feels Like49°
  • WindS 9 mph
  • Humidity
    Humidity89%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover97%
  • Rain drop
    Rain Amount0.01 in

10 am

Showers Showers
52°
Rain drop 49%
S 10 mph
Add

Showers

  • Temperature feels like
    Feels Like49°
  • WindS 10 mph
  • Humidity
    Humidity88%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover94%
  • Rain drop
    Rain Amount0.01 in
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