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

As of 12:54 am EDT
alertLevel2

Special Marine Warning

Tonight

Rain Rain
--/49°
Rain drop 93%
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Night

49°
Rain
Rain drop
93%
WSW 9 mph

Cloudy with periods of rain. Thunder possible. Low 49F. Winds WSW at 5 to 10 mph. Chance of rain 90%.

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  • Humidity
    Humidity81%
  • 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
69°/46°
Rain drop 15%
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Day

69°
Partly Cloudy Day
Rain drop
15%
N 10 mph

Sunshine and clouds mixed. Slight chance of a rain shower. High 69F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:11 am
  • Sunset
    Sunset7:22 pm

Night

46°
Partly Cloudy Night
Rain drop
8%
SE 7 mph

Partly cloudy. Low 46F. Winds SE at 5 to 10 mph.

  • Humidity
    Humidity68%
  • 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
85°/56°
Rain drop 8%
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Day

85°
Partly Cloudy Day
Rain drop
8%
SSW 12 mph

Partly cloudy. Very warm. High around 85F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:23 pm

Night

56°
Rain
Rain drop
81%
WSW 11 mph

Partly cloudy in the evening then becoming cloudy with periods of rain after midnight. Low 56F. Winds WSW at 10 to 15 mph. Chance of rain 80%.

  • Humidity
    Humidity57%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:51 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Scattered Showers Day AM Showers
60°/32°
Rain drop 73%
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Day

60°
Scattered Showers Day
Rain drop
73%
NNW 17 mph

Rain showers early with some sunshine later in the day. High around 60F. Winds NNW at 10 to 20 mph. Chance of rain 70%.

  • Humidity
    Humidity57%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:08 am
  • Sunset
    Sunset7:24 pm

Night

32°
Mostly Clear Night
Mixed precipitation
1%
NNW 13 mph

Mainly clear early, then a few clouds later on. Low 32F. Winds NNW at 10 to 15 mph.

  • Humidity
    Humidity48%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:34 am
  • Moonset
    Moonset12:09 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Mostly Clear Day Mostly Sunny
53°/36°
Rain drop 1%
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Day

53°
Mostly Clear Day
Rain drop
1%
NE 7 mph

A few clouds from time to time. High 53F. Winds NE at 5 to 10 mph.

  • Humidity
    Humidity38%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:06 am
  • Sunset
    Sunset7:25 pm

Night

36°
Cloudy
Mixed precipitation
8%
S 8 mph

Cloudy. Low 36F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity49%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:26 am
  • Moonset
    Moonset1:23 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Mostly Cloudy Day Mostly Cloudy
60°/44°
Rain drop 8%
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Day

60°
Mostly Cloudy Day
Rain drop
8%
SSW 9 mph

Considerable cloudiness. High near 60F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity48%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset7:26 pm

Night

44°
Partly Cloudy Night
Rain drop
24%
S 8 mph

Partly cloudy early with increasing clouds overnight. Low 44F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:29 am
  • Moonset
    Moonset2:30 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Mostly Cloudy Day Mostly Cloudy
72°/51°
Rain drop 24%
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Day

72°
Mostly Cloudy Day
Rain drop
24%
SSW 11 mph

Mainly cloudy. High 72F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity44%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset7:27 pm

Night

51°
Showers
Rain drop
51%
SW 9 mph

Cloudy with occasional rain showers. Low 51F. Winds SW at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:38 pm
  • Moonset
    Moonset3:27 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Partly Cloudy Day Partly Cloudy
59°/34°
Rain drop 24%
Add

Day

59°
Partly Cloudy Day
Rain drop
24%
NNW 12 mph

Sunshine and clouds mixed. High 59F. Winds NNW at 10 to 15 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:02 am
  • Sunset
    Sunset7:28 pm

Night

34°
Partly Cloudy Night
Mixed precipitation
24%
N 10 mph

Partly cloudy skies. Low 34F. Winds N at 10 to 15 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:51 pm
  • Moonset
    Moonset4:12 am
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Partly Cloudy Day Partly Cloudy
53°/36°
Rain drop 8%
Add

Day

53°
Partly Cloudy Day
Rain drop
8%
NNW 7 mph

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

  • Humidity
    Humidity42%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:00 am
  • Sunset
    Sunset7:29 pm

Night

36°
Partly Cloudy Night
Mixed precipitation
24%
S 6 mph

A few clouds from time to time. Low 36F. Winds light and variable.

  • Humidity
    Humidity57%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:03 pm
  • Moonset
    Moonset4:49 am
  • Moon Phase - Day 10 Waxing Gibbous

Sun 29

Scattered Showers Day AM Showers
54°/41°
Rain drop 34%
Add

Day

54°
Scattered Showers Day
Rain drop
34%
SSW 8 mph

A shower or two possible early with partly cloudy skies in the afternoon. High 54F. Winds SSW at 5 to 10 mph. Chance of rain 30%.

  • Humidity
    Humidity58%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:58 am
  • Sunset
    Sunset7:30 pm

Night

41°
Scattered Showers Night
Rain drop
31%
SSW 7 mph

Partly cloudy skies early followed by mostly cloudy skies and a few showers later at night. Low 41F. Winds SSW at 5 to 10 mph. Chance of rain 30%.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:12 pm
  • Moonset
    Moonset5:19 am
  • Moon Phase - Day 11 Waxing Gibbous

Mon 30

Scattered Showers Day AM Showers
61°/45°
Rain drop 34%
Add

Day

61°
Scattered Showers Day
Rain drop
34%
SW 8 mph

A few showers in the morning, then clouds lingering in the afternoon. High 61F. Winds SW at 5 to 10 mph. Chance of rain 30%.

  • Humidity
    Humidity52%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:57 am
  • Sunset
    Sunset7:31 pm

Night

45°
Mostly Cloudy Night
Rain drop
17%
SSW 7 mph

Mainly cloudy. Low near 45F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:19 pm
  • Moonset
    Moonset5:44 am
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Partly Cloudy Day Partly Cloudy
72°/49°
Rain drop 19%
Add

Day

72°
Partly Cloudy Day
Rain drop
19%
SW 9 mph

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

  • Humidity
    Humidity47%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:32 pm

Night

49°
Mostly Cloudy Night
Rain drop
22%
SW 8 mph

Mostly cloudy skies. Low 49F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:23 pm
  • Moonset
    Moonset6:07 am
  • Moon Phase - Day 13 Waxing Gibbous

Wed 01

Partly Cloudy Day Partly Cloudy
71°/52°
Rain drop 21%
Add

Day

71°
Partly Cloudy Day
Rain drop
21%
SW 10 mph

Intervals of clouds and sunshine. High 71F. Winds SW at 10 to 15 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:54 am
  • Sunset
    Sunset7:33 pm

Night

52°
Mostly Cloudy Night
Rain drop
21%
SSW 9 mph

Mostly cloudy skies. Low 52F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:27 pm
  • Moonset
    Moonset6:29 am
  • Moon Phase - Day 14 Full Moon

Thu 02

Showers Showers
65°/45°
Rain drop 51%
Add

Day

65°
Showers
Rain drop
51%
SSW 10 mph

Cloudy with showers. High around 65F. Winds SSW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity56%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:34 pm

Night

45°
Mostly Cloudy Night
Rain drop
24%
WSW 9 mph

Mainly cloudy. Low near 45F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:30 pm
  • Moonset
    Moonset6:51 am
  • Moon Phase - Day 15 Full Moon

Fri 03

Partly Cloudy Day Partly Cloudy
64°/47°
Rain drop 24%
Add

Day

64°
Partly Cloudy Day
Rain drop
24%
WSW 11 mph

Intervals of clouds and sunshine. High 64F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:50 am
  • Sunset
    Sunset7:35 pm

Night

47°
Partly Cloudy Night
Rain drop
24%
SW 9 mph

A few clouds. Low 47F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity62%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:34 pm
  • Moonset
    Moonset7:15 am
  • Moon Phase - Day 16 Waning Gibbous
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