Weather in Herndon, United States 🇺🇸
Right now Herndon is 21°C with sunny, feeling like 21°C. Expect 64% humidity and winds of about 4 km/h, and the UV index is 2 (low). The next few days in Herndon look set for about 15°C up to 30°C.
Hourly Forecast for Herndon
14-Day Forecast for Herndon
Sunny
Sunny
Overcast
Overcast
Sunny
Partly Cloudy
Overcast
Patchy rain nearby
Sunny
Partly Cloudy
Patchy rain nearby
Sunny
Light rain shower
Light rain shower
Additional Forecasts for Herndon
Air Quality
Historical Weather
Weather Forecasts for Other Cities in United States
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Best Time to Be Outside in Herndon Today
The most comfortable window in Herndon today looks like 17:00 to 20:00, when it is around 26°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Herndon
What is the temperature in Herndon right now?
It is currently 21°C (69°F) in Herndon, sunny (feels like 21°C).
What's the weather like in Herndon right now?
Current weather in Herndon: Sunny, humidity 64%, wind 4 km/h W.
What is today's forecast for Herndon?
Today in Herndon: high 28°C, low 15°C, sunny. Chance of rain: 3%.
What is the 7-day weather forecast for Herndon?
Daily highs and lows for Herndon:
- 2026-08-24: 28°C / 15°C
- 2026-08-25: 29°C / 16°C
- 2026-08-26: 30°C / 17°C
- 2026-08-27: 32°C / 19°C
- 2026-08-28: 31°C / 19°C
- 2026-08-29: 32°C / 21°C
- 2026-08-30: 31°C / 19°C
Is it going to rain in Herndon today?
There is a 3% chance of rain in Herndon today.
What is the wind speed in Herndon right now?
Wind in Herndon is currently 4 km/h (3 mph) from the W.
What is the UV index in Herndon right now?
The UV index in Herndon is currently 1.6 (low). Sun protection is recommended when the index is 3 or higher.
