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

As of 12:31 am EST

Tonight

Partly Cloudy Night Partly Cloudy
--/29°
Rain drop 15%
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Night

29°
Partly Cloudy Night
Mixed precipitation
15%
NNW 2 mph

Partly cloudy skies. Low 29F. Winds light and variable.

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Northeast May See More Snow From Multiple Storms

  • Humidity
    Humidity97%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:36 pm
  • Moonset
    Moonset3:36 am
  • Moon Phase - Day 10 Waxing Gibbous

Fri 27

Foggy AM Fog/PM Sun
54°/34°
Rain drop 8%
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Day

54°
Foggy
Rain drop
8%
SW 5 mph

Areas of fog early, then partly cloudy in the afternoon. High 54F. Winds light and variable.

  • Humidity
    Humidity65%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:45 am
  • Sunset
    Sunset6:00 pm

Night

34°
Mostly Clear Night
Mixed precipitation
8%
SSE 5 mph

A few clouds from time to time. Low 34F. Winds light and variable.

  • Humidity
    Humidity82%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:47 pm
  • Moonset
    Moonset4:30 am
  • Moon Phase - Day 11 Waxing Gibbous

Sat 28

Sunny Sunny
62°/38°
Rain drop 8%
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Day

62°
Sunny
Rain drop
8%
S 6 mph

Mainly sunny. High 62F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:43 am
  • Sunset
    Sunset6:01 pm

Night

38°
Partly Cloudy Night
Mixed precipitation
7%
S 5 mph

Partly cloudy skies. Low 38F. Winds light and variable.

  • Humidity
    Humidity79%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:02 pm
  • Moonset
    Moonset5:13 am
  • Moon Phase - Day 12 Waxing Gibbous

Sun 01

Partly Cloudy Day AM Clouds/PM Sun
50°/27°
Rain drop 16%
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Day

50°
Partly Cloudy Day
Rain drop
16%
NNW 12 mph

Cloudy skies early will become partly cloudy later in the day. High around 50F. Winds NNW at 10 to 15 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:42 am
  • Sunset
    Sunset6:02 pm

Night

27°
Partly Cloudy Night
Mixed precipitation
5%
NNE 9 mph

Partly to mostly cloudy. Low 27F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:15 pm
  • Moonset
    Moonset5:47 am
  • Moon Phase - Day 13 Waxing Gibbous

Mon 02

Snow Showers Snow Showers
32°/27°
Rain drop 56%
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Day

32°
Snow Showers
Snowflake
56%
ENE 7 mph

Occasional snow showers. Temps nearly steady in the low to mid 30s. Winds ENE at 5 to 10 mph. Chance of snow 60%. 1 to 3 inches of snow expected.

  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:40 am
  • Sunset
    Sunset6:03 pm

Night

27°
Mostly Cloudy Night
Mixed precipitation
24%
ESE 5 mph

Mostly cloudy skies. Low 27F. Winds light and variable.

  • Humidity
    Humidity78%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:25 pm
  • Moonset
    Moonset6:16 am
  • Moon Phase - Day 14 Full Moon

Tue 03

Rain, Snow, Wintery Mix Snow to Rain
36°/34°
Rain drop 52%
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Day

36°
Rain, Snow, Wintery Mix
Mixed precipitation
52%
SSE 8 mph

Moderating temperatures will change morning scattered snow showers to rain showers by late day. High 36F. Winds SSE at 5 to 10 mph. Chance of precip 50%.

  • Humidity
    Humidity87%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise6:39 am
  • Sunset
    Sunset6:04 pm

Night

34°
Showers
Rain drop
59%
SW 7 mph

Overcast with rain showers at times. Low 34F. Winds SW at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity98%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:33 pm
  • Moonset
    Moonset6:41 am
  • Moon Phase - Day 15 Full Moon

Wed 04

Scattered Showers Day AM Showers
52°/39°
Rain drop 35%
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Day

52°
Scattered Showers Day
Rain drop
35%
N 6 mph

Rain showers early with mostly cloudy conditions later in the day. High 52F. Winds light and variable. Chance of rain 40%.

  • Humidity
    Humidity74%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:37 am
  • Sunset
    Sunset6:05 pm

Night

39°
Mostly Cloudy Night
Mixed precipitation
22%
SE 4 mph

Mainly cloudy. Low 39F. Winds light and variable.

  • Humidity
    Humidity81%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:37 pm
  • Moonset
    Moonset7:04 am
  • Moon Phase - Day 16 Waning Gibbous

Thu 05

Mostly Cloudy Day Mostly Cloudy
56°/46°
Rain drop 24%
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Day

56°
Mostly Cloudy Day
Rain drop
24%
S 9 mph

Mainly cloudy. High 56F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity73%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:36 am
  • Sunset
    Sunset6:06 pm

Night

46°
Scattered Showers Night
Rain drop
34%
SSW 8 mph

A shower or two around the area in the evening, then partly cloudy overnight. Low 46F. Winds SSW at 5 to 10 mph. Chance of rain 30%.

  • Humidity
    Humidity88%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:41 pm
  • Moonset
    Moonset7:26 am
  • Moon Phase - Day 17 Waning Gibbous

Fri 06

Scattered Showers Day PM Showers
66°/52°
Rain drop 40%
Add

Day

66°
Scattered Showers Day
Rain drop
40%
SSW 8 mph

Partly cloudy in the morning. Increasing clouds with periods of showers later in the day. High 66F. Winds SSW at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity74%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:34 am
  • Sunset
    Sunset6:07 pm

Night

52°
Scattered Showers Night
Rain drop
35%
SSW 7 mph

Rain showers early with clearing later at night. Low 52F. Winds SSW at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity86%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:44 pm
  • Moonset
    Moonset7:48 am
  • Moon Phase - Day 18 Waning Gibbous

Sat 07

Partly Cloudy Day Partly Cloudy
70°/55°
Rain drop 21%
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Day

70°
Partly Cloudy Day
Rain drop
21%
SSW 8 mph

Partly cloudy skies. High around 70F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity72%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:33 am
  • Sunset
    Sunset6:08 pm

Night

55°
Partly Cloudy Night
Rain drop
24%
SSW 8 mph

A few clouds. Low around 55F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity79%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:48 pm
  • Moonset
    Moonset8:13 am
  • Moon Phase - Day 19 Waning Gibbous

Sun 08

Partly Cloudy Day Partly Cloudy
69°/55°
Rain drop 24%
Add

Day

69°
Partly Cloudy Day
Rain drop
24%
SW 11 mph

Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. High 69F. Winds SW at 10 to 15 mph.

  • Humidity
    Humidity68%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise7:31 am
  • Sunset
    Sunset7:09 pm

Night

55°
Scattered Showers Night
Rain drop
44%
SSW 9 mph

Rain showers early with clearing later at night. Low around 55F. Winds SSW at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise--
  • Moonset
    Moonset9:41 am
  • Moon Phase - Day 19 Waning Gibbous

Mon 09

Showers Showers
71°/56°
Rain drop 44%
Add

Day

71°
Showers
Rain drop
44%
SW 11 mph

Overcast with rain showers at times. High 71F. Winds SW at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity69%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise7:30 am
  • Sunset
    Sunset7:10 pm

Night

56°
Scattered Showers Night
Rain drop
43%
SSW 8 mph

Showers in the evening with some clearing overnight. Low 56F. Winds SSW at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity76%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:50 am
  • Moonset
    Moonset10:14 am
  • Moon Phase - Day 20 Waning Gibbous

Tue 10

Scattered Showers Day PM Showers
71°/57°
Rain drop 35%
Add

Day

71°
Scattered Showers Day
Rain drop
35%
SSW 12 mph

Mostly cloudy with some showers in the afternoon. High 71F. Winds SSW at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity68%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise7:28 am
  • Sunset
    Sunset7:11 pm

Night

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

Mostly cloudy skies. Low 57F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity73%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:52 am
  • Moonset
    Moonset10:53 am
  • Moon Phase - Day 21 Waning Gibbous

Wed 11

Showers Showers
69°/51°
Rain drop 50%
Add

Day

69°
Showers
Rain drop
50%
SW 11 mph

Cloudy with occasional rain showers. High 69F. Winds SW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity64%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:27 am
  • Sunset
    Sunset7:12 pm

Night

51°
Showers
Rain drop
48%
WSW 9 mph

Overcast with rain showers at times. Low 51F. Winds WSW at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:50 am
  • Moonset
    Moonset11:40 am
  • Moon Phase - Day 22 Last Quarter

Thu 12

Showers Showers
61°/47°
Rain drop 58%
Add

Day

61°
Showers
Rain drop
58%
WSW 12 mph

Cloudy with occasional rain showers. High 61F. Winds WSW at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity60%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise7:25 am
  • Sunset
    Sunset7:13 pm

Night

47°
Scattered Showers Night
Rain drop
50%
W 10 mph

Showers in the evening with some clearing overnight. Low 47F. Winds W at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:42 am
  • Moonset
    Moonset12:33 pm
  • Moon Phase - Day 23 Waning Crescent
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