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

As of 6:52 am EDT
alertLevel3

Small Craft Advisory

+1 More

Today

Rain, Snow, Wintery Mix Rain/Snow/Wind
56°/28°
Rain drop 99%
Subtract

Day

56°
Rain, Snow, Wintery Mix
Rain drop
99%
NW 20 mph

Windy early with periods of rain and snow throughout the day. Morning high of 56F with temps falling to near 40. Winds NW at 20 to 30 mph. Chance of rain 100%. Winds could occasionally gust over 40 mph.

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  • Humidity
    Humidity75%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:25 am
  • Sunset
    Sunset7:13 pm

Night

28°
Mostly Clear Night
Mixed precipitation
3%
W 10 mph

Mostly clear. Low 28F. Winds W at 10 to 15 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:42 am
  • Moonset
    Moonset12:34 pm
  • Moon Phase - Day 23 Waning Crescent

Fri 13

Partly Cloudy Day AM Clouds/PM Sun/Wind
58°/42°
Rain drop 9%
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Day

58°
Partly Cloudy Day
Rain drop
9%
S 21 mph

Cloudy early then partly cloudy and windy later in the day. High 58F. Winds S at 20 to 30 mph. Higher wind gusts possible.

  • Humidity
    Humidity45%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise7:24 am
  • Sunset
    Sunset7:14 pm

Night

42°
Mostly Clear Night
WSW 17 mph

Mainly clear. Low 42F. Winds WSW at 10 to 20 mph.

  • Humidity
    Humidity41%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:27 am
  • Moonset
    Moonset1:34 pm
  • Moon Phase - Day 24 Waning Crescent

Sat 14

Partly Cloudy Day Partly Cloudy
58°/40°
Rain drop 0%
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Day

58°
Partly Cloudy Day
WNW 11 mph

Sunshine and clouds mixed. High 58F. Winds WNW at 10 to 15 mph.

  • Humidity
    Humidity30%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:22 am
  • Sunset
    Sunset7:15 pm

Night

40°
Mostly Cloudy Night
ENE 6 mph

Mostly cloudy skies. Low around 40F. Winds ENE at 5 to 10 mph.

  • Humidity
    Humidity43%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:06 am
  • Moonset
    Moonset2:39 pm
  • Moon Phase - Day 25 Waning Crescent

Sun 15

Mostly Cloudy Day Mostly Cloudy
60°/53°
Rain drop 15%
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Day

60°
Mostly Cloudy Day
Rain drop
15%
ESE 13 mph

Mostly cloudy. Slight chance of a rain shower. High near 60F. Winds ESE at 10 to 20 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:21 am
  • Sunset
    Sunset7:16 pm

Night

53°
Showers
Rain drop
70%
SE 12 mph

Cloudy. Some light rain is likely. Low 53F. Winds SE at 10 to 15 mph. Chance of rain 70%.

  • Humidity
    Humidity79%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:40 am
  • Moonset
    Moonset3:46 pm
  • Moon Phase - Day 26 Waning Crescent

Mon 16

Thunderstorms Thunderstorms
65°/27°
Rain drop 90%
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Day

65°
Thunderstorms
Rain drop
90%
SSW 17 mph

Showers and thunderstorms. High near 65F. Winds SSW at 15 to 25 mph. Chance of rain 90%.

  • Humidity
    Humidity82%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:19 am
  • Sunset
    Sunset7:17 pm

Night

27°
Scattered Showers Night
Rain drop
74%
WNW 14 mph

Rain showers early with clearing later at night. Low 27F. Winds WNW at 10 to 20 mph. Chance of rain 70%.

  • Humidity
    Humidity62%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:08 am
  • Moonset
    Moonset4:53 pm
  • Moon Phase - Day 27 Waning Crescent

Tue 17

Partly Cloudy Day Partly Cloudy
36°/21°
Rain drop 0%
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Day

36°
Partly Cloudy Day
WNW 14 mph

Partly cloudy. Cold. High 36F. Winds WNW at 10 to 20 mph.

  • Humidity
    Humidity39%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:17 am
  • Sunset
    Sunset7:18 pm

Night

21°
Partly Cloudy Night
NW 11 mph

Partly cloudy. Low 21F. Winds NW at 10 to 15 mph.

  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:33 am
  • Moonset
    Moonset6:02 pm
  • Moon Phase - Day 28 Waning Crescent

Wed 18

Partly Cloudy Day Partly Cloudy
41°/27°
Rain drop 0%
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Day

41°
Partly Cloudy Day
WSW 7 mph

Sunshine and clouds mixed. High 41F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity41%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:16 am
  • Sunset
    Sunset7:19 pm

Night

27°
Partly Cloudy Night
Mixed precipitation
4%
SSE 5 mph

A few clouds. Low 27F. Winds light and variable.

  • Humidity
    Humidity56%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:58 am
  • Moonset
    Moonset7:11 pm
  • Moon Phase - Day 29 New Moon

Thu 19

Partly Cloudy Day Partly Cloudy
57°/38°
Rain drop 9%
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Day

57°
Partly Cloudy Day
Rain drop
9%
SSE 7 mph

Partly cloudy skies. High 57F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity46%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:14 am
  • Sunset
    Sunset7:20 pm

Night

38°
Partly Cloudy Night
Mixed precipitation
8%
SSE 6 mph

Partly cloudy. Low 38F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:22 am
  • Moonset
    Moonset8:22 pm
  • Moon Phase - Day 0 New Moon

Fri 20

Partly Cloudy Day Partly Cloudy
62°/43°
Rain drop 9%
Add

Day

62°
Partly Cloudy Day
Rain drop
9%
SSW 9 mph

Intervals of clouds and sunshine. High 62F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:13 am
  • Sunset
    Sunset7:21 pm

Night

43°
Partly Cloudy Night
Rain drop
17%
SW 7 mph

Partly cloudy skies during the evening will give way to cloudy skies overnight. Low 43F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:48 am
  • Moonset
    Moonset9:36 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Partly Cloudy Day Partly Cloudy
62°/36°
Rain drop 7%
Add

Day

62°
Partly Cloudy Day
Rain drop
7%
NW 12 mph

Partly cloudy skies. High 62F. Winds NW at 10 to 15 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:11 am
  • Sunset
    Sunset7:22 pm

Night

36°
Partly Cloudy Night
Mixed precipitation
9%
NNW 10 mph

Partly cloudy. Low 36F. Winds NNW at 5 to 10 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:17 am
  • Moonset
    Moonset10:52 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Partly Cloudy Day Partly Cloudy
54°/37°
Rain drop 13%
Add

Day

54°
Partly Cloudy Day
Rain drop
13%
NW 9 mph

Partly cloudy. High 54F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:23 pm

Night

37°
Partly Cloudy Night
Mixed precipitation
24%
NW 8 mph

A few clouds. Low 37F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity67%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:51 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Partly Cloudy Day Partly Cloudy
57°/38°
Rain drop 24%
Add

Day

57°
Partly Cloudy Day
Rain drop
24%
NNW 8 mph

Intervals of clouds and sunshine. High 57F. Winds NNW at 5 to 10 mph.

  • Humidity
    Humidity61%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:08 am
  • Sunset
    Sunset7:24 pm

Night

38°
Partly Cloudy Night
Mixed precipitation
17%
N 7 mph

Partly cloudy. Low 38F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity68%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:34 am
  • Moonset
    Moonset12:09 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Partly Cloudy Day Partly Cloudy
56°/38°
Rain drop 17%
Add

Day

56°
Partly Cloudy Day
Rain drop
17%
NW 9 mph

Partly cloudy skies. High 56F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity61%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:06 am
  • Sunset
    Sunset7:25 pm

Night

38°
Scattered Showers Night
Rain drop
43%
NW 8 mph

Partly cloudy in the evening. Increasing clouds with periods of showers after midnight. Low 38F. Winds NW at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:26 am
  • Moonset
    Moonset1:23 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Scattered Showers Day AM Showers
54°/37°
Rain drop 44%
Add

Day

54°
Scattered Showers Day
Rain drop
44%
NW 9 mph

Rain showers early with some sunshine later in the day. High 54F. Winds NW at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity67%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset7:26 pm

Night

37°
Partly Cloudy Night
Mixed precipitation
17%
NW 8 mph

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

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:29 am
  • Moonset
    Moonset2:30 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Partly Cloudy Day Partly Cloudy
58°/36°
Rain drop 17%
Add

Day

58°
Partly Cloudy Day
Rain drop
17%
WNW 10 mph

Intervals of clouds and sunshine. High 58F. Winds WNW at 5 to 10 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset7:27 pm

Night

36°
Partly Cloudy Night
Mixed precipitation
24%
NNW 7 mph

Partly cloudy. Low 36F. Winds NNW at 5 to 10 mph.

  • Humidity
    Humidity67%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:38 pm
  • Moonset
    Moonset3:27 am
  • Moon Phase - Day 8 Waxing Gibbous
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