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

As of 11:47 pm PDT
alertLevel1

River Flood Warning

+2 More

Tonight

Rain Rain
--/53°
Rain drop 97%
Subtract

Night

53°
Rain
Rain drop
97%
SSW 10 mph

Cloudy with periods of rain. Low 53F. Winds SSW at 10 to 15 mph. Chance of rain 100%. Rainfall around a quarter of an inch.

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Highs In The 80s, 90s This Weekend

  • Humidity
    Humidity95%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:19 am
  • Moonset
    Moonset8:41 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Rain Rain
54°/40°
Rain drop 96%
Add

Day

54°
Rain
Rain drop
96%
SSW 13 mph

A steady rain in the morning. Showers continuing in the afternoon. High 54F. Winds SSW at 10 to 20 mph. Chance of rain 100%. Rainfall near a quarter of an inch.

  • Humidity
    Humidity89%
  • UV index
    UV Index1 of 11
  • Sunrise
    Sunrise7:11 am
  • Sunset
    Sunset7:21 pm

Night

40°
Cloudy
Rain drop
24%
E 10 mph

Overcast. Low near 40F. Winds E at 5 to 10 mph.

  • Humidity
    Humidity85%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:37 am
  • Moonset
    Moonset10:03 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Partly Cloudy Day AM Clouds/PM Sun
50°/39°
Rain drop 24%
Add

Day

50°
Partly Cloudy Day
Rain drop
24%
E 7 mph

Cloudy skies early will become partly cloudy later in the day. High near 50F. Winds E at 5 to 10 mph.

  • Humidity
    Humidity66%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:23 pm

Night

39°
Partly Cloudy Night
Mixed precipitation
18%
SSE 9 mph

A few clouds. Low 39F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:59 am
  • Moonset
    Moonset11:28 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Mostly Cloudy Day Mostly Cloudy
52°/38°
Rain drop 7%
Add

Day

52°
Mostly Cloudy Day
Rain drop
7%
SW 8 mph

Partly cloudy skies during the morning hours will become overcast in the afternoon. High 52F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:07 am
  • Sunset
    Sunset7:24 pm

Night

38°
Cloudy
Mixed precipitation
6%
NNE 8 mph

Overcast. Low 38F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:26 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Mostly Cloudy Day Mostly Cloudy
51°/42°
Rain drop 6%
Add

Day

51°
Mostly Cloudy Day
Rain drop
6%
NNE 8 mph

Considerable cloudiness. High 51F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset7:26 pm

Night

42°
Rain
Rain drop
74%
ESE 7 mph

Cloudy with rain developing after midnight. Low 42F. Winds ESE at 5 to 10 mph. Chance of rain 70%.

  • Humidity
    Humidity73%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:02 am
  • Moonset
    Moonset12:53 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Rain Rain
52°/39°
Rain drop 90%
Add

Day

52°
Rain
Rain drop
90%
S 14 mph

Cloudy with periods of rain. Potential for heavy rainfall. High 52F. Winds S at 10 to 20 mph. Chance of rain 90%. Rainfall around a quarter of an inch.

  • Humidity
    Humidity81%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset7:27 pm

Night

39°
Showers
Rain drop
63%
SSW 14 mph

Overcast with rain showers at times. Low 39F. Winds SSW at 10 to 20 mph. Chance of rain 60%.

  • Humidity
    Humidity90%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:51 am
  • Moonset
    Moonset2:13 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Showers Showers
48°/35°
Rain drop 46%
Add

Day

48°
Showers
Rain drop
46%
SSW 12 mph

Showers early becoming less numerous later in the day. High 48F. Winds SSW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity74%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:01 am
  • Sunset
    Sunset7:29 pm

Night

35°
Partly Cloudy Night
Mixed precipitation
24%
SSW 11 mph

Partly cloudy skies. Low near 35F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity85%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:55 am
  • Moonset
    Moonset3:19 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Partly Cloudy Day Partly Cloudy
52°/37°
Rain drop 19%
Add

Day

52°
Partly Cloudy Day
Rain drop
19%
S 8 mph

Partly cloudy. High 52F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:30 pm

Night

37°
Mostly Clear Night
Mixed precipitation
10%
NE 8 mph

Generally fair. Low 37F. Winds NE at 5 to 10 mph.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:09 pm
  • Moonset
    Moonset4:11 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Partly Cloudy Day Partly Cloudy
57°/39°
Rain drop 14%
Add

Day

57°
Partly Cloudy Day
Rain drop
14%
NNE 11 mph

Sunshine and clouds mixed. High 57F. Winds NNE at 10 to 15 mph.

  • Humidity
    Humidity61%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:57 am
  • Sunset
    Sunset7:31 pm

Night

39°
Partly Cloudy Night
Mixed precipitation
14%
NE 9 mph

A few clouds from time to time. Low 39F. Winds NE at 5 to 10 mph.

  • Humidity
    Humidity76%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:29 pm
  • Moonset
    Moonset4:49 am
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Partly Cloudy Day Partly Cloudy
59°/40°
Rain drop 8%
Add

Day

59°
Partly Cloudy Day
Rain drop
8%
N 7 mph

Partly cloudy skies. High 59F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:33 pm

Night

40°
Scattered Showers Night
Rain drop
37%
SSE 7 mph

Partly cloudy in the evening. Increasing clouds with periods of showers after midnight. Low around 40F. Winds SSE at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity82%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:49 pm
  • Moonset
    Moonset5:17 am
  • Moon Phase - Day 10 Waxing Gibbous

Sun 29

Scattered Showers Day AM Showers
53°/41°
Rain drop 39%
Add

Day

53°
Scattered Showers Day
Rain drop
39%
S 9 mph

Showers in the morning, then partly cloudy in the afternoon. High 53F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity74%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:34 pm

Night

41°
Showers
Rain drop
46%
S 8 mph

Overcast with rain showers at times. Low 41F. Winds S at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity83%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:07 pm
  • Moonset
    Moonset5:38 am
  • Moon Phase - Day 11 Waxing Gibbous

Mon 30

Showers Showers
50°/39°
Rain drop 40%
Add

Day

50°
Showers
Rain drop
40%
SSW 9 mph

Overcast with rain showers at times. High around 50F. Winds SSW at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity75%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:51 am
  • Sunset
    Sunset7:36 pm

Night

39°
Showers
Rain drop
37%
S 7 mph

Cloudy with showers. Low 39F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity87%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:21 pm
  • Moonset
    Moonset5:56 am
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Scattered Showers Day AM Showers
50°/39°
Rain drop 33%
Add

Day

50°
Scattered Showers Day
Rain drop
33%
SSW 9 mph

A few showers early with mostly cloudy conditions later in the day. High around 50F. Winds SSW at 5 to 10 mph. Chance of rain 30%.

  • Humidity
    Humidity73%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:49 am
  • Sunset
    Sunset7:37 pm

Night

39°
Showers
Rain drop
57%
SSE 8 mph

Cloudy with showers. Low 39F. Winds SSE at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity86%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:33 pm
  • Moonset
    Moonset6:12 am
  • Moon Phase - Day 13 Waxing Gibbous

Wed 01

Showers Showers
50°/39°
Rain drop 59%
Add

Day

50°
Showers
Rain drop
59%
S 9 mph

Considerable cloudiness with occasional rain showers. High near 50F. Winds S at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity81%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:47 am
  • Sunset
    Sunset7:39 pm

Night

39°
Showers
Rain drop
59%
S 9 mph

Cloudy with showers. Low 39F. Winds S at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:43 pm
  • Moonset
    Moonset6:27 am
  • Moon Phase - Day 14 Full Moon

Thu 02

Showers Showers
48°/40°
Rain drop 48%
Add

Day

48°
Showers
Rain drop
48%
S 9 mph

Cloudy with occasional rain showers. High 48F. Winds S at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity82%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:45 am
  • Sunset
    Sunset7:40 pm

Night

40°
Showers
Rain drop
54%
S 9 mph

Cloudy with showers. Low around 40F. Winds S at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity93%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:54 pm
  • Moonset
    Moonset6:42 am
  • Moon Phase - Day 15 Full Moon
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