Weather in Herndon, United States 🇺🇸
Weather Forecast in Herndon
Current Weather in Herndon
In Herndon right now it is 22°C and partly cloudy, feeling like 22°C. Humidity is 100% with winds around 9 km/h, and the UV index is 0 (low). Over the next few days, temperatures in Herndon range from about 19°C to 33°C. ⚠️ Flood Watch issued July 9 at 5:46PM EDT until July 9 at 11:00PM EDT by NWS Baltimore MD/Washington DC
Hourly Forecast for Herndon
14-Day Forecast for Herndon
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Partly Cloudy
Patchy rain nearby
Light rain shower
Fog
Patchy rain nearby
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 06:00 to 08:00, when it is around 22°C. It should stay dry through that window. The next likely rain is around 16:00.
Frequently Asked Questions about Weather in Herndon
What is the temperature in Herndon right now?
The current temperature in Herndon is 22°C (71°F), partly cloudy (feels like 22°C).
What's the weather like in Herndon right now?
Conditions in Herndon right now: Partly cloudy, humidity 100%, wind 9 km/h WNW.
What is today's forecast for Herndon?
Today in Herndon: high 33°C, low 21°C, sunny. Chance of rain: 71%.
What is the 7-day weather forecast for Herndon?
Daily highs and lows for Herndon:
- 2026-07-10: 33°C / 21°C
- 2026-07-11: 29°C / 20°C
- 2026-07-12: 28°C / 19°C
- 2026-07-13: 29°C / 16°C
- 2026-07-14: 30°C / 16°C
- 2026-07-15: 34°C / 19°C
- 2026-07-16: 33°C / 23°C
Is it going to rain in Herndon today?
There is a 71% chance of rain in Herndon today. Total expected precipitation: 7.87 mm.
What is the wind speed in Herndon right now?
Wind in Herndon is currently 9 km/h (6 mph) from the WNW.
What is the UV index in Herndon right now?
The UV index in Herndon is currently 0 (low). Sun protection is recommended when the index is 3 or higher.
