10-Day Weather Forecast for SeaTac, Washington 98158 - The Weather Channel | weather.com
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10 Day Weather-

As of 10:40 am PDT
alertLevel2

Flood Watch

+1 More

Today

Rain Rain
53°/50°
Rain drop 90%
Subtract

Day

53°
Rain
Rain drop
90%
S 15 mph

A steady rain this morning. Showers continuing this afternoon. High 53F. Winds S at 10 to 20 mph. Chance of rain 90%. Locally heavy rainfall possible.

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  • Humidity
    Humidity89%
  • UV index
    UV Index1 of 11
  • Sunrise
    Sunrise7:17 am
  • Sunset
    Sunset7:17 pm

Night

50°
Rain
Rain drop
95%
S 11 mph

Rain. Low near 50F. Winds S at 10 to 15 mph. Chance of rain 100%. Rainfall around a half an inch. Locally heavy rainfall possible.

  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:47 am
  • Moonset
    Moonset6:03 pm
  • Moon Phase - Day 28 Waning Crescent

Wed 18

Rain Rain
54°/50°
Rain drop 86%
Add

Day

54°
Rain
Rain drop
86%
SSW 11 mph

A steady rain in the morning. Showers continuing in the afternoon. High 54F. Winds SSW at 10 to 15 mph. Chance of rain 90%.

  • Humidity
    Humidity91%
  • UV index
    UV Index1 of 11
  • Sunrise
    Sunrise7:15 am
  • Sunset
    Sunset7:19 pm

Night

50°
Showers
Rain drop
58%
S 10 mph

Cloudy with showers. Low around 50F. Winds S at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity93%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:03 am
  • Moonset
    Moonset7:21 pm
  • Moon Phase - Day 0 New Moon

Thu 19

Showers Showers
56°/52°
Rain drop 60%
Add

Day

56°
Showers
Rain drop
60%
SSW 11 mph

Considerable cloudiness with occasional rain showers. High 56F. Winds SSW at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity86%
  • UV index
    UV Index1 of 11
  • Sunrise
    Sunrise7:13 am
  • Sunset
    Sunset7:20 pm

Night

52°
Rain
Rain drop
82%
SSW 11 mph

Cloudy with periods of rain. Low 52F. Winds SSW at 10 to 15 mph. Chance of rain 80%. Rainfall around a quarter of an inch.

  • Humidity
    Humidity93%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:19 am
  • Moonset
    Moonset8:41 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Rain Rain
55°/40°
Rain drop 83%
Add

Day

55°
Rain
Rain drop
83%
SSW 13 mph

Periods of rain. High near 55F. Winds SSW at 10 to 15 mph. Chance of rain 80%. Rainfall around a quarter of an inch.

  • Humidity
    Humidity87%
  • UV index
    UV Index1 of 11
  • Sunrise
    Sunrise7:11 am
  • Sunset
    Sunset7:22 pm

Night

40°
Showers
Rain drop
44%
SSE 9 mph

Showers early becoming less numerous late. Low near 40F. Winds SSE at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity83%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:38 am
  • Moonset
    Moonset10:03 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Partly Cloudy Day Partly Cloudy
51°/37°
Rain drop 24%
Add

Day

51°
Partly Cloudy Day
Rain drop
24%
N 8 mph

Mostly cloudy skies early will become partly cloudy later in the day. High 51F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:23 pm

Night

37°
Partly Cloudy Night
Mixed precipitation
16%
ESE 7 mph

Partly cloudy skies. Low 37F. Winds ESE at 5 to 10 mph.

  • Humidity
    Humidity70%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:59 am
  • Moonset
    Moonset11:28 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Partly Cloudy Day Partly Cloudy
53°/38°
Rain drop 16%
Add

Day

53°
Partly Cloudy Day
Rain drop
16%
ENE 8 mph

Partly cloudy skies. High 53F. Winds ENE at 5 to 10 mph.

  • Humidity
    Humidity62%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:07 am
  • Sunset
    Sunset7:24 pm

Night

38°
Partly Cloudy Night
Mixed precipitation
10%
ENE 6 mph

Partly cloudy skies during the evening will give way to cloudy skies overnight. Low 38F. Winds ENE at 5 to 10 mph.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:27 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Mostly Cloudy Day Mostly Cloudy
51°/40°
Rain drop 15%
Add

Day

51°
Mostly Cloudy Day
Rain drop
15%
NNE 9 mph

More clouds than sun. High 51F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity66%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset7:26 pm

Night

40°
Showers
Rain drop
59%
E 7 mph

Considerable cloudiness with occasional rain showers. Low near 40F. Winds E at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity76%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:03 am
  • Moonset
    Moonset12:53 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Showers Showers
49°/37°
Rain drop 59%
Add

Day

49°
Showers
Rain drop
59%
S 13 mph

Cloudy with occasional rain showers. High 49F. Winds S at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity75%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset7:27 pm

Night

37°
Showers
Rain drop
59%
SSW 13 mph

Considerable cloudiness with occasional rain showers. Low 37F. Winds SSW at 10 to 20 mph. Chance of rain 60%.

  • Humidity
    Humidity86%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:51 am
  • Moonset
    Moonset2:13 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Showers Showers
46°/35°
Rain drop 53%
Add

Day

46°
Showers
Rain drop
53%
SSW 15 mph

Cloudy with showers. High 46F. Winds SSW at 10 to 20 mph. Chance of rain 50%.

  • Humidity
    Humidity72%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:01 am
  • Sunset
    Sunset7:29 pm

Night

35°
Showers
Rain drop
48%
SSW 13 mph

Overcast with rain showers at times. Low near 35F. Winds SSW at 10 to 20 mph. Chance of rain 50%.

  • Humidity
    Humidity84%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:55 am
  • Moonset
    Moonset3:19 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Showers Showers
48°/38°
Rain drop 38%
Add

Day

48°
Showers
Rain drop
38%
SSW 11 mph

Rain showers in the morning becoming more intermittent in the afternoon. High 48F. Winds SSW at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity72%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:30 pm

Night

38°
Showers
Rain drop
48%
SSE 9 mph

Cloudy with occasional showers. Low 38F. Winds SSE at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity79%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:10 pm
  • Moonset
    Moonset4:11 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Showers Showers
50°/38°
Rain drop 41%
Add

Day

50°
Showers
Rain drop
41%
SSW 11 mph

Showers early becoming less numerous later in the day. High near 50F. Winds SSW at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity69%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:57 am
  • Sunset
    Sunset7:32 pm

Night

38°
Scattered Showers Night
Rain drop
45%
SE 10 mph

Increasing clouds with showers arriving sometime after midnight. Low 38F. Winds SE at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity78%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:29 pm
  • Moonset
    Moonset4:49 am
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Showers Showers
51°/38°
Rain drop 48%
Add

Day

51°
Showers
Rain drop
48%
SSW 12 mph

Cloudy with occasional rain showers. High 51F. SE winds shifting to W at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity70%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:33 pm

Night

38°
Showers
Rain drop
56%
S 11 mph

Overcast with rain showers at times. Low 38F. Winds S at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity85%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:49 pm
  • Moonset
    Moonset5:17 am
  • Moon Phase - Day 10 Waxing Gibbous

Sun 29

Showers Showers
52°/38°
Rain drop 50%
Add

Day

52°
Showers
Rain drop
50%
SSW 11 mph

Overcast with rain showers at times. High 52F. Winds SSW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity71%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:34 pm

Night

38°
Showers
Rain drop
38%
S 9 mph

Overcast with rain showers at times. Low 38F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity89%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:07 pm
  • Moonset
    Moonset5:38 am
  • Moon Phase - Day 11 Waxing Gibbous

Mon 30

Showers Showers
49°/40°
Rain drop 55%
Add

Day

49°
Showers
Rain drop
55%
S 9 mph

Considerable cloudiness with occasional rain showers. High 49F. Winds S at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity82%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:51 am
  • Sunset
    Sunset7:36 pm

Night

40°
Showers
Rain drop
60%
S 9 mph

Rain showers in the evening becoming a steady light rain overnight. Low around 40F. Winds S at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity93%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:21 pm
  • Moonset
    Moonset5:56 am
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Showers Showers
50°/38°
Rain drop 56%
Add

Day

50°
Showers
Rain drop
56%
SSW 11 mph

Cloudy with showers. High around 50F. Winds SSW at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity83%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:49 am
  • Sunset
    Sunset7:37 pm

Night

38°
Showers
Rain drop
59%
S 9 mph

Cloudy with occasional rain showers. Low 38F. Winds S at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity91%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:33 pm
  • Moonset
    Moonset6:12 am
  • Moon Phase - Day 13 Waxing Gibbous
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