Herndon, VA Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Herndon, VA in one place.
Mostly clear, with a low around 64. Southwest wind 5 to 8 mph.
Local Weather Overview
This forecast page for Herndon, VA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 13, 2026 9:23 PM EDT.
The active forecast window currently covers Oct 13 to Oct 20, 2026 for Herndon, VA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 20, 2026
- Latest sync
- Oct 13, 2026 9:23 PM EDT
- Forecast office
- LWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Herndon
Wednesday looks like the warmest upcoming period in Herndon at 86 degrees F.
Saturday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Saturday at about 17 to 22 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 9:23 PM EDT
- Coverage
- 8 days
- Time zone
- America/New_York
- Forecast office
- LWX
- Radar station
- KLWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 86. Southwest wind 3 to 7 mph.
A slight chance of showers and thunderstorms between 8pm and 9pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northwest wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers. Mostly cloudy, with a high near 65. Northeast wind 3 to 8 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers. Mostly cloudy, with a low around 58. Southeast wind 3 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
A chance of rain showers before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 45. Chance of precipitation is 50%.
Sunny, with a high near 55.
Mostly clear, with a low around 36.
Sunny, with a high near 59.
Mostly clear, with a low around 41.
Mostly sunny, with a high near 64.
Partly cloudy, with a low around 46.
Mostly sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Oct 13
|
Mostly Clear
|
64°F |
5 to 8 mph
SW
|
|
Wednesday
Oct 14
|
Sunny
|
86°F |
3 to 7 mph
SW
|
|
Wednesday Night
Oct 14
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
61°F |
5 to 8 mph
NW
|
|
Thursday
Oct 15
|
Chance Rain Showers
|
65°F |
3 to 8 mph
NE
|
|
Thursday Night
Oct 15
|
Chance Rain Showers
|
58°F |
3 to 12 mph
SE
|
|
Friday
Oct 16
|
Chance Rain Showers
|
80°F |
13 to 21 mph
SW
|
|
Friday Night
Oct 16
|
Chance Showers And Thunderstorms
|
45°F |
21 mph
NW
|
|
Saturday
Oct 17
|
Sunny
|
55°F |
17 to 22 mph
NW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
36°F |
2 to 14 mph
NW
|
|
Sunday
Oct 18
|
Sunny
|
59°F |
1 to 6 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
41°F |
5 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
64°F |
3 to 8 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
46°F |
1 to 6 mph
S
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
67°F |
2 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Herndon.
