5-day weather forecast for Ashburn, Virginia
Today
43°
80°
Sunny
Saturday
49°
80°
Sunny
Sunday
51°
76°
Mostly sunny
Monday
53°
79°
Mostly sunny
Tuesday
53°
75°
Slight Chance Rain Showers
Click on a forecast to see the forecast trend for that day
Weather forecast accuracy for Herndon, Virginia
| Accuweather | 81.28% |
| MyForecast | 80.83% |
| The Weather Channel | 79.28% |
| Intellicast | 79.28% |
| National Weather Service | 78.03% |
| NWS Digital Forecast | 76.77% |
| The Weather Channel | 74.74% |
| Intellicast | 74.62% |
| Accuweather | 70.54% |
| National Weather Service | 70.47% |
| NWS Digital Forecast | 70.18% |
| MyForecast | 69.92% |
ForecastAdvisor Fact
78.9% of Accuweather's high temperature forecasts for Herndon were within 3 degrees of actual temperatures last month.