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

As of 05:13 EDT
alertLevel3

Small Craft Advisory

+1 More

Today

Partly Cloudy Day Partly Cloudy
27°/16°
Rain drop 1%
Subtract

Day

27°
Partly Cloudy Day
Rain drop
1%
SSW 24 km/h

Partly cloudy. High 27°C. Winds SSW at 15 to 30 km/h.

  • Humidity
    Humidity41%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise07:03
  • Sunset
    Sunset19:27

Night

16°
Scattered Showers Night
Rain drop
57%
SW 22 km/h

Showers late at night. Low 16°C. Winds SW at 15 to 30 km/h. Chance of rain 60%.

  • Humidity
    Humidity54%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:38
  • Moonset
    Moonset03:27
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Rain Rain
19°/1°
Rain drop 85%
Add

Day

19°
Rain
Rain drop
85%
N 18 km/h

Rain. High 19°C. Winds N at 15 to 25 km/h. Chance of rain 90%.

  • Humidity
    Humidity80%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise07:01
  • Sunset
    Sunset19:28

Night

1°
Partly Cloudy Night
Mixed precipitation
10%
NNW 19 km/h

Skies clearing late. Low 1°C. Winds NNW at 15 to 25 km/h.

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise13:51
  • Moonset
    Moonset04:12
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Sunny Sunny
8°/-2°
Rain drop 0%
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Day

8°
Sunny
NW 24 km/h

Generally clear. High 8°C. Winds NW at 15 to 30 km/h.

  • Humidity
    Humidity35%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise07:00
  • Sunset
    Sunset19:29

Night

-2°
Clear Night
Mixed precipitation
1%
WSW 10 km/h

Generally clear. Low -2°C. Winds WSW at 10 to 15 km/h.

  • Humidity
    Humidity54%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise15:03
  • Moonset
    Moonset04:49
  • Moon Phase - Day 10 Waxing Gibbous

Sun 29

Partly Cloudy Day Partly Cloudy
16°/7°
Rain drop 1%
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Day

16°
Partly Cloudy Day
Rain drop
1%
SSW 21 km/h

Partly cloudy. High 16°C. Winds SSW at 15 to 30 km/h.

  • Humidity
    Humidity40%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise06:58
  • Sunset
    Sunset19:30

Night

7°
Partly Cloudy Night
SSW 19 km/h

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

  • Humidity
    Humidity42%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise16:12
  • Moonset
    Moonset05:19
  • Moon Phase - Day 11 Waxing Gibbous

Mon 30

Partly Cloudy Day Partly Cloudy
25°/12°
Rain drop 15%
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Day

25°
Partly Cloudy Day
Rain drop
15%
SW 18 km/h

Partly cloudy. Slight chance of a rain shower. High 25°C. Winds SW at 15 to 25 km/h.

  • Humidity
    Humidity42%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:57
  • Sunset
    Sunset19:31

Night

12°
Partly Cloudy Night
Rain drop
18%
SSW 14 km/h

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

  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise17:19
  • Moonset
    Moonset05:44
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Partly Cloudy Day Partly Cloudy
27°/16°
Rain drop 14%
Add

Day

27°
Partly Cloudy Day
Rain drop
14%
SSW 19 km/h

Partly cloudy. High 27°C. Winds SSW at 15 to 25 km/h.

  • Humidity
    Humidity47%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise06:55
  • Sunset
    Sunset19:32

Night

16°
Partly Cloudy Night
Rain drop
14%
SSW 17 km/h

Partly cloudy. Low 16°C. Winds SSW at 10 to 15 km/h.

  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise18:23
  • Moonset
    Moonset06:07
  • Moon Phase - Day 13 Waxing Gibbous

Wed 01

Isolated Thunderstorms Isolated T-Storms
29°/14°
Rain drop 31%
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Day

29°
Isolated Thunderstorms
Rain drop
31%
SSW 21 km/h

Partly cloudy, with a possible thunderstorm. High 29°C. Winds SSW at 15 to 25 km/h. Chance of rain 30%.

  • Humidity
    Humidity52%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise06:54
  • Sunset
    Sunset19:33

Night

14°
Partly Cloudy Night
Rain drop
24%
SSW 19 km/h

Partly cloudy. Low 14°C. Winds SSW at 15 to 25 km/h.

  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise19:27
  • Moonset
    Moonset06:29
  • Moon Phase - Day 14 Full

Thu 02

Partly Cloudy Day Partly Cloudy
27°/13°
Rain drop 19%
Add

Day

27°
Partly Cloudy Day
Rain drop
19%
SSW 21 km/h

Partly cloudy. High 27°C. Winds SSW at 15 to 25 km/h.

  • Humidity
    Humidity54%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise06:52
  • Sunset
    Sunset19:34

Night

13°
Showers
Rain drop
35%
S 18 km/h

Showers. Low 13°C. Winds S at 15 to 25 km/h. Chance of rain 40%.

  • Humidity
    Humidity70%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise20:30
  • Moonset
    Moonset06:51
  • Moon Phase - Day 15 Full

Fri 03

Showers Showers
20°/9°
Rain drop 45%
Add

Day

20°
Showers
Rain drop
45%
SSW 17 km/h

Showers. High 20°C. Winds SSW at 10 to 15 km/h. Chance of rain 50%.

  • Humidity
    Humidity71%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:50
  • Sunset
    Sunset19:35

Night

9°
Scattered Showers Night
Rain drop
42%
NE 14 km/h

Showers early. Low 9°C. Winds NE at 10 to 15 km/h. Chance of rain 40%.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise21:34
  • Moonset
    Moonset07:15
  • Moon Phase - Day 16 Waning Gibbous

Sat 04

Mostly Cloudy Day Mostly Cloudy
18°/10°
Rain drop 24%
Add

Day

18°
Mostly Cloudy Day
Rain drop
24%
ESE 16 km/h

Mostly cloudy. High 18°C. Winds ESE at 10 to 15 km/h.

  • Humidity
    Humidity61%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:49
  • Sunset
    Sunset19:36

Night

10°
Mostly Cloudy Night
Rain drop
23%
SSE 15 km/h

Mostly cloudy. Low 10°C. Winds SSE at 10 to 15 km/h.

  • Humidity
    Humidity69%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise22:37
  • Moonset
    Moonset07:42
  • Moon Phase - Day 17 Waning Gibbous

Sun 05

Scattered Showers Day PM Showers
19°/9°
Rain drop 33%
Add

Day

19°
Scattered Showers Day
Rain drop
33%
SW 18 km/h

Afternoon showers. High 19°C. Winds SW at 15 to 25 km/h. Chance of rain 30%.

  • Humidity
    Humidity59%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise06:47
  • Sunset
    Sunset19:37

Night

9°
Showers
Rain drop
42%
WSW 15 km/h

Showers. Low 9°C. Winds WSW at 10 to 15 km/h. Chance of rain 40%.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise23:39
  • Moonset
    Moonset08:13
  • Moon Phase - Day 18 Waning Gibbous

Mon 06

Scattered Showers Day AM Showers
17°/7°
Rain drop 41%
Add

Day

17°
Scattered Showers Day
Rain drop
41%
NW 17 km/h

Morning showers. High 17°C. Winds NW at 15 to 25 km/h. Chance of rain 40%.

  • Humidity
    Humidity55%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:46
  • Sunset
    Sunset19:38

Night

7°
Mostly Cloudy Night
Rain drop
21%
NW 15 km/h

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

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise--
  • Moonset
    Moonset08:49
  • Moon Phase - Day 19 Waning Gibbous

Tue 07

Mostly Cloudy Day Mostly Cloudy
17°/6°
Rain drop 20%
Add

Day

17°
Mostly Cloudy Day
Rain drop
20%
NNE 15 km/h

Mostly cloudy. High 17°C. Winds NNE at 10 to 15 km/h.

  • Humidity
    Humidity52%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:44
  • Sunset
    Sunset19:39

Night

6°
Partly Cloudy Night
Rain drop
23%
SSE 14 km/h

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

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise00:38
  • Moonset
    Moonset09:33
  • Moon Phase - Day 20 Waning Gibbous

Wed 08

Mostly Cloudy Day Mostly Cloudy
18°/8°
Rain drop 24%
Add

Day

18°
Mostly Cloudy Day
Rain drop
24%
S 15 km/h

Mostly cloudy. High 18°C. Winds S at 10 to 15 km/h.

  • Humidity
    Humidity58%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:43
  • Sunset
    Sunset19:40

Night

8°
Scattered Showers Night
Rain drop
58%
S 13 km/h

Showers late at night. Low 8°C. Winds S at 10 to 15 km/h. Chance of rain 60%.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise01:33
  • Moonset
    Moonset10:24
  • Moon Phase - Day 21 Waning Gibbous

Thu 09

Scattered Showers Day AM Showers
17°/8°
Rain drop 58%
Add

Day

17°
Scattered Showers Day
Rain drop
58%
WSW 17 km/h

Morning showers. High 17°C. Winds WSW at 15 to 25 km/h. Chance of rain 60%.

  • Humidity
    Humidity61%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise06:41
  • Sunset
    Sunset19:41

Night

8°
Partly Cloudy Night
Rain drop
24%
SW 13 km/h

Partly cloudy. Low 8°C. Winds SW at 10 to 15 km/h.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise02:21
  • Moonset
    Moonset11:21
  • Moon Phase - Day 21 Waning Gibbous
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