10-day weather forecast for Herndon, Virginia 20170, United States - The Weather Channel | weather.com
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10-Day Weather-

As of 20:26 EDT
alertLevel3

Small Craft Advisory

Tonight

Partly Cloudy Night Partly Cloudy
--/12°
Rain drop 10%
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Night

12°
Partly Cloudy Night
Rain drop
10%
SE 12 km/h

Partly cloudy. Low 12°C. Winds SE at 10 to 15 km/h.

  • Humidity
    Humidity76%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:55
  • Moonset
    Moonset02:51
  • Moon Phase - Day 8 Waxing Gibbous

Sat 25

Rain PM Rain
19°/7°
Rain drop 92%
Add

Day

19°
Rain
Rain drop
92%
ESE 19 km/h

Rain developing during the afternoon. High 19°C. Winds ESE at 15 to 25 km/h. Chance of rain 90%. Rainfall around 6 mm.

  • Humidity
    Humidity71%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:18
  • Sunset
    Sunset19:56

Night

7°
Showers
Rain drop
78%
NE 18 km/h

Light rain. Low 7°C. Winds NE at 15 to 25 km/h. Chance of rain 80%.

  • Humidity
    Humidity94%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise14:05
  • Moonset
    Moonset03:23
  • Moon Phase - Day 9 Waxing Gibbous

Sun 26

Cloudy Cloudy
13°/6°
Rain drop 22%
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Day

13°
Cloudy
Rain drop
22%
NNE 19 km/h

Cloudy. High 13°C. Winds NNE at 15 to 25 km/h.

  • Humidity
    Humidity77%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise06:17
  • Sunset
    Sunset19:57

Night

6°
Partly Cloudy Night
Rain drop
6%
NNE 17 km/h

Partly cloudy. Low 6°C. Winds NNE at 10 to 15 km/h.

  • Humidity
    Humidity80%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise15:11
  • Moonset
    Moonset03:49
  • Moon Phase - Day 10 Waxing Gibbous

Mon 27

Mostly Clear Day Mostly Sunny
21°/9°
Rain drop 4%
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Day

21°
Mostly Clear Day
Rain drop
4%
NNE 16 km/h

Generally clear. Warmer. High 21°C. Winds NNE at 10 to 15 km/h.

  • Humidity
    Humidity52%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise06:16
  • Sunset
    Sunset19:58

Night

9°
Partly Cloudy Night
Rain drop
6%
E 14 km/h

Partly cloudy. Low 9°C. Winds E at 10 to 15 km/h.

  • Humidity
    Humidity69%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise16:15
  • Moonset
    Moonset04:12
  • Moon Phase - Day 11 Waxing Gibbous

Tue 28

Cloudy Cloudy
20°/11°
Rain drop 24%
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Day

20°
Cloudy
Rain drop
24%
SE 16 km/h

Cloudy. High 20°C. Winds SE at 10 to 15 km/h.

  • Humidity
    Humidity59%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:15
  • Sunset
    Sunset19:59

Night

11°
Partly Cloudy Night
Rain drop
24%
SE 14 km/h

Partly cloudy. Low 11°C. Winds SE at 10 to 15 km/h.

  • Humidity
    Humidity80%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise17:18
  • Moonset
    Moonset04:34
  • Moon Phase - Day 12 Waxing Gibbous

Wed 29

Rain PM Rain
20°/11°
Rain drop 85%
Add

Day

20°
Rain
Rain drop
85%
SSE 14 km/h

Rain developing during the afternoon. High 20°C. Winds SSE at 10 to 15 km/h. Chance of rain 90%. Rainfall around 6 mm.

  • Humidity
    Humidity76%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:13
  • Sunset
    Sunset20:00

Night

11°
Rain
Rain drop
84%
NE 13 km/h

Rain. Low 11°C. Winds NE at 10 to 15 km/h. Chance of rain 80%. Rainfall around 12 mm.

  • Humidity
    Humidity92%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise18:20
  • Moonset
    Moonset04:56
  • Moon Phase - Day 13 Waxing Gibbous

Thu 30

Partly Cloudy Day Partly Cloudy
18°/7°
Rain drop 24%
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Day

18°
Partly Cloudy Day
Rain drop
24%
NW 23 km/h

Partly cloudy. High 18°C. Winds NW at 15 to 30 km/h.

  • Humidity
    Humidity63%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise06:12
  • Sunset
    Sunset20:01

Night

7°
Partly Cloudy Night
Rain drop
10%
NW 21 km/h

Partly cloudy. Low 7°C. Winds NW at 15 to 25 km/h.

  • Humidity
    Humidity62%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise19:23
  • Moonset
    Moonset05:19
  • Moon Phase - Day 14 Full

Fri 01

Partly Cloudy Day Partly Cloudy
17°/8°
Rain drop 20%
Add

Day

17°
Partly Cloudy Day
Rain drop
20%
NW 19 km/h

Partly cloudy. High 17°C. Winds NW at 15 to 25 km/h.

  • Humidity
    Humidity49%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise06:11
  • Sunset
    Sunset20:02

Night

8°
Scattered Showers Night
Rain drop
32%
NW 15 km/h

Showers late at night. Low 8°C. Winds NW at 10 to 15 km/h. Chance of rain 30%.

  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise20:26
  • Moonset
    Moonset05:45
  • Moon Phase - Day 14 Full

Sat 02

Scattered Showers Day AM Showers
17°/7°
Rain drop 34%
Add

Day

17°
Scattered Showers Day
Rain drop
34%
NW 17 km/h

Morning showers. High 17°C. Winds NW at 10 to 15 km/h. Chance of rain 30%.

  • Humidity
    Humidity56%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise06:10
  • Sunset
    Sunset20:03

Night

7°
Partly Cloudy Night
Rain drop
20%
NW 14 km/h

Partly cloudy. Low 7°C. Winds NW at 10 to 15 km/h.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise21:29
  • Moonset
    Moonset06:14
  • Moon Phase - Day 15 Full

Sun 03

Partly Cloudy Day Partly Cloudy
17°/7°
Rain drop 11%
Add

Day

17°
Partly Cloudy Day
Rain drop
11%
WNW 19 km/h

Partly cloudy. High 17°C. Winds WNW at 15 to 25 km/h.

  • Humidity
    Humidity48%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise06:09
  • Sunset
    Sunset20:04

Night

7°
Partly Cloudy Night
Rain drop
12%
WNW 16 km/h

Partly cloudy. Low 7°C. Winds WNW at 10 to 15 km/h.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise22:29
  • Moonset
    Moonset06:48
  • Moon Phase - Day 16 Waning Gibbous

Mon 04

Partly Cloudy Day Partly Cloudy
21°/10°
Rain drop 6%
Add

Day

21°
Partly Cloudy Day
Rain drop
6%
WNW 18 km/h

Partly cloudy. High 21°C. Winds WNW at 15 to 25 km/h.

  • Humidity
    Humidity46%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise06:07
  • Sunset
    Sunset20:05

Night

10°
Partly Cloudy Night
Rain drop
6%
W 15 km/h

Partly cloudy. Low 10°C. Winds W at 10 to 15 km/h.

  • Humidity
    Humidity57%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise23:26
  • Moonset
    Moonset07:30
  • Moon Phase - Day 17 Waning Gibbous

Tue 05

Partly Cloudy Day Partly Cloudy
22°/12°
Rain drop 6%
Add

Day

22°
Partly Cloudy Day
Rain drop
6%
W 19 km/h

Partly cloudy. High 22°C. Winds W at 15 to 25 km/h.

  • Humidity
    Humidity46%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise06:06
  • Sunset
    Sunset20:06

Night

12°
Partly Cloudy Night
Rain drop
24%
SW 16 km/h

Partly cloudy. Low 12°C. Winds SW at 10 to 15 km/h.

  • Humidity
    Humidity61%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise--
  • Moonset
    Moonset08:18
  • Moon Phase - Day 18 Waning Gibbous

Wed 06

Scattered Showers Day AM Showers
23°/11°
Rain drop 36%
Add

Day

23°
Scattered Showers Day
Rain drop
36%
W 16 km/h

Morning showers. High 23°C. Winds W at 10 to 15 km/h. Chance of rain 40%.

  • Humidity
    Humidity55%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise06:05
  • Sunset
    Sunset20:07

Night

11°
Partly Cloudy Night
Rain drop
24%
WSW 14 km/h

Partly cloudy. Low 11°C. Winds WSW at 10 to 15 km/h.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise00:16
  • Moonset
    Moonset09:13
  • Moon Phase - Day 19 Waning Gibbous

Thu 07

Partly Cloudy Day Partly Cloudy
23°/12°
Rain drop 19%
Add

Day

23°
Partly Cloudy Day
Rain drop
19%
WNW 17 km/h

Partly cloudy. High 23°C. Winds WNW at 10 to 15 km/h.

  • Humidity
    Humidity49%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise06:04
  • Sunset
    Sunset20:08

Night

12°
Scattered Showers Night
Rain drop
34%
WSW 14 km/h

Showers late at night. Low 12°C. Winds WSW at 10 to 15 km/h. Chance of rain 30%.

  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise00:59
  • Moonset
    Moonset10:12
  • Moon Phase - Day 20 Waning Gibbous

Fri 08

Showers Showers
22°/12°
Rain drop 43%
Add

Day

22°
Showers
Rain drop
43%
WNW 18 km/h

Showers. High 22°C. Winds WNW at 15 to 25 km/h. Chance of rain 40%.

  • Humidity
    Humidity53%
  • UV index
    UV Index8 of 11
  • Sunrise
    Sunrise06:03
  • Sunset
    Sunset20:09

Night

12°
Partly Cloudy Night
Rain drop
24%
W 15 km/h

Partly cloudy. Low 12°C. Winds W at 10 to 15 km/h.

  • Humidity
    Humidity62%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise01:36
  • Moonset
    Moonset11:15
  • Moon Phase - Day 21 Waning Gibbous
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