10-Day Weather Forecast for Herndon, Virginia 20170 - The Weather Channel | weather.com
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10 Day Weather-

As of 11:40 am EDT
alertLevel2

Special Marine Warning

+1 More

Today

Rain Rain
62°/42°
Rain drop 100%
Subtract

Day

62°
Rain
Rain drop
100%
NW 15 mph

Cloudy with periods of rain. High 62F. Winds NW at 10 to 20 mph. Chance of rain 100%. Locally heavy rainfall possible.

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  • Humidity
    Humidity79%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:47 am
  • Sunset
    Sunset7:37 pm

Night

42°
Partly Cloudy Night
Rain drop
2%
NW 15 mph

Partly cloudy skies. Low 42F. Winds NW at 10 to 20 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:39 pm
  • Moonset
    Moonset8:13 am
  • Moon Phase - Day 18 Waning Gibbous

Mon 06

Mostly Clear Day Mostly Sunny
63°/44°
Rain drop 3%
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Day

63°
Mostly Clear Day
Rain drop
3%
WNW 12 mph

Except for a few afternoon clouds, mainly sunny. High 63F. Winds WNW at 10 to 15 mph.

  • Humidity
    Humidity41%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:46 am
  • Sunset
    Sunset7:38 pm

Night

44°
Partly Cloudy Night
Rain drop
3%
WNW 9 mph

Partly cloudy skies. Low 44F. Winds WNW at 5 to 10 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise--
  • Moonset
    Moonset8:49 am
  • Moon Phase - Day 19 Waning Gibbous

Tue 07

Sunny Sunny
53°/32°
Rain drop 3%
Add

Day

53°
Sunny
Rain drop
3%
NW 14 mph

A mainly sunny sky. High 53F. Winds NW at 10 to 20 mph.

  • Humidity
    Humidity34%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:44 am
  • Sunset
    Sunset7:39 pm

Night

32°
Clear Night
Mixed precipitation
1%
N 10 mph

Clear. Low 32F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity42%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:38 am
  • Moonset
    Moonset9:33 am
  • Moon Phase - Day 20 Waning Gibbous

Wed 08

Sunny Sunny
55°/36°
Rain drop 1%
Add

Day

55°
Sunny
Rain drop
1%
ESE 9 mph

Mainly sunny. High around 55F. Winds ESE at 5 to 10 mph.

  • Humidity
    Humidity36%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:43 am
  • Sunset
    Sunset7:40 pm

Night

36°
Mostly Clear Night
Mixed precipitation
7%
SE 8 mph

Clear skies with a few passing clouds. Low 36F. Winds SE at 5 to 10 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:33 am
  • Moonset
    Moonset10:24 am
  • Moon Phase - Day 21 Waning Gibbous

Thu 09

Partly Cloudy Day Partly Cloudy
63°/43°
Rain drop 7%
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Day

63°
Partly Cloudy Day
Rain drop
7%
SSE 11 mph

Partly cloudy. High 63F. Winds SSE at 10 to 15 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:41 am
  • Sunset
    Sunset7:41 pm

Night

43°
Mostly Clear Night
Rain drop
8%
SSE 10 mph

Mostly clear skies. Low 43F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity69%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:21 am
  • Moonset
    Moonset11:21 am
  • Moon Phase - Day 21 Waning Gibbous

Fri 10

Mostly Clear Day Mostly Sunny
76°/54°
Rain drop 8%
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Day

76°
Mostly Clear Day
Rain drop
8%
S 9 mph

A few clouds early, otherwise mostly sunny. High 76F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:40 am
  • Sunset
    Sunset7:42 pm

Night

54°
Partly Cloudy Night
Rain drop
9%
S 8 mph

Partly cloudy skies. Low 54F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:02 am
  • Moonset
    Moonset12:23 pm
  • Moon Phase - Day 22 Last Quarter

Sat 11

Partly Cloudy Day Partly Cloudy
79°/58°
Rain drop 6%
Add

Day

79°
Partly Cloudy Day
Rain drop
6%
WSW 7 mph

Intervals of clouds and sunshine. High 79F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:38 am
  • Sunset
    Sunset7:43 pm

Night

58°
Partly Cloudy Night
Rain drop
5%
SE 6 mph

Partly cloudy skies. Low 58F. Winds SE at 5 to 10 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:37 am
  • Moonset
    Moonset1:28 pm
  • Moon Phase - Day 23 Waning Crescent

Sun 12

Partly Cloudy Day Partly Cloudy
81°/61°
Rain drop 5%
Add

Day

81°
Partly Cloudy Day
Rain drop
5%
SSE 12 mph

Mostly cloudy skies early, then partly cloudy in the afternoon. High 81F. Winds SSE at 10 to 15 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:37 am
  • Sunset
    Sunset7:44 pm

Night

61°
Partly Cloudy Night
Rain drop
5%
S 10 mph

Partly cloudy. Low 61F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:07 am
  • Moonset
    Moonset2:33 pm
  • Moon Phase - Day 24 Waning Crescent

Mon 13

Mostly Cloudy Day Mostly Cloudy
87°/66°
Rain drop 5%
Add

Day

87°
Mostly Cloudy Day
Rain drop
5%
SSW 12 mph

Mostly cloudy. High 87F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:35 am
  • Sunset
    Sunset7:45 pm

Night

66°
Partly Cloudy Night
Rain drop
5%
SSW 11 mph

Mostly cloudy skies early will become partly cloudy late. Low 66F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:33 am
  • Moonset
    Moonset3:41 pm
  • Moon Phase - Day 25 Waning Crescent

Tue 14

Partly Cloudy Day Partly Cloudy
86°/65°
Rain drop 15%
Add

Day

86°
Partly Cloudy Day
Rain drop
15%
SSW 12 mph

Partly to mostly cloudy. High 86F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:34 am
  • Sunset
    Sunset7:46 pm

Night

65°
Mostly Cloudy Night
Rain drop
16%
SW 10 mph

Considerable cloudiness. Low around 65F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:58 am
  • Moonset
    Moonset4:49 pm
  • Moon Phase - Day 26 Waning Crescent

Wed 15

Scattered Showers Day PM Showers
80°/57°
Rain drop 30%
Add

Day

80°
Scattered Showers Day
Rain drop
30%
WSW 11 mph

A mix of clouds and sun in the morning giving way to a few showers during the afternoon. High near 80F. Winds WSW at 10 to 15 mph. Chance of rain 30%.

  • Humidity
    Humidity51%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:32 am
  • Sunset
    Sunset7:47 pm

Night

57°
Mostly Cloudy Night
Rain drop
24%
W 10 mph

Mainly cloudy. Low 57F. Winds W at 10 to 15 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:22 am
  • Moonset
    Moonset5:59 pm
  • Moon Phase - Day 27 Waning Crescent

Thu 16

Mostly Cloudy Day Mostly Cloudy
70°/54°
Rain drop 22%
Add

Day

70°
Mostly Cloudy Day
Rain drop
22%
W 10 mph

Considerable cloudiness. High around 70F. Winds W at 10 to 15 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:31 am
  • Sunset
    Sunset7:48 pm

Night

54°
Mostly Cloudy Night
Rain drop
21%
SW 9 mph

Mainly cloudy. Low 54F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:47 am
  • Moonset
    Moonset7:12 pm
  • Moon Phase - Day 28 Waning Crescent

Fri 17

Partly Cloudy Day Partly Cloudy
72°/55°
Rain drop 17%
Add

Day

72°
Partly Cloudy Day
Rain drop
17%
SW 9 mph

Partly cloudy skies. High 72F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:29 am
  • Sunset
    Sunset7:49 pm

Night

55°
Partly Cloudy Night
Rain drop
15%
S 8 mph

Partly cloudy skies. Low near 55F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:15 am
  • Moonset
    Moonset8:28 pm
  • Moon Phase - Day 0 New Moon

Sat 18

Partly Cloudy Day Partly Cloudy
75°/57°
Rain drop 19%
Add

Day

75°
Partly Cloudy Day
Rain drop
19%
S 10 mph

Intervals of clouds and sunshine in the morning with more clouds for later in the day. High near 75F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:28 am
  • Sunset
    Sunset7:49 pm

Night

57°
Mostly Cloudy Night
Rain drop
16%
S 9 mph

Considerable cloudiness. Low 57F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:47 am
  • Moonset
    Moonset9:48 pm
  • Moon Phase - Day 1 Waxing Crescent

Sun 19

Partly Cloudy Day Partly Cloudy
79°/58°
Rain drop 19%
Add

Day

79°
Partly Cloudy Day
Rain drop
19%
SSW 10 mph

Mostly cloudy skies early will become partly cloudy later in the day. High 79F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:26 am
  • Sunset
    Sunset7:50 pm

Night

58°
Partly Cloudy Night
Rain drop
24%
SSW 9 mph

A few clouds. Low 58F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity62%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:28 am
  • Moonset
    Moonset11:06 pm
  • Moon Phase - Day 2 Waxing Crescent
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