Current Conditions
Herndon, Virginia
Wind
W 5 mph7 km/h
Humidity
76%
Cloud Cover
53%
As of Thursday, August 13, 2026 at 3:27 AM EDT
Today's Outlook
Day
Partly cloudy and hot, with a high of 94°F34°C and morning low of 76°F25°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h.
Night
Mostly cloudy, with a low around 74°F24°C. Light wind from the NW around 4 mph7 km/h. 12% chance of drizzle overnight.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Drizzle | High 94°F34°C | Low 74°F24°C | Precip 0.01 in0.2 mm12% | Cloud 57% | Wind NW 5 mph9 km/h | Thursday: Partly cloudy and hot, with a high of 94°F34°C and morning low of 76°F25°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. Thursday Night: Mostly cloudy, with a low around 74°F24°C. Light wind from the NW around 4 mph7 km/h. 12% chance of drizzle overnight. | |
| Light Rain | High 86°F30°CFeels 89°F31°C | Low 75°F24°C | Precip 0.06 in1.5 mm29% | Cloud 85% | Wind NNW 3 mph5 km/h | Friday: Overcast and hot, with a high of 86°F30°C and morning low of 77°F25°C. Light wind from the NNW around 3 mph5 km/h. 29% chance of light rain throughout the day. Humid. Friday Night: Mostly cloudy, with a low around 75°F24°C. Light wind from the NNW around 4 mph6 km/h. | |
| Drizzle | High 89°F32°C | Low 73°F23°C | Precip 0.03 in0.8 mm10% | Cloud 71% | Wind E 4 mph7 km/h | Saturday: Mostly cloudy and hot, with a high of 89°F32°C and morning low of 75°F24°C. Light wind from the ENE around 4 mph6 km/h. 10% chance of drizzle throughout the day. Saturday Night: Mostly cloudy, with a low around 73°F23°C. Light wind from the ESE around 5 mph7 km/h. | |
| Light Rain | High 85°F30°CFeels 93°F34°C | Low 75°F24°C | Precip 0.4 in10.2 mm63% | Cloud 87% | Wind S 6 mph10 km/h | Sunday: Overcast and warm, with a high of 85°F30°C and morning low of 76°F24°C — feels like 93°F34°C. Breezy from the S at 7 mph11 km/h. 63% chance of light rain throughout the day. Heavy, humid air. Sunday Night: Overcast, with a low around 75°F24°C. Light wind from the S around 6 mph9 km/h. 51% chance of light rain throughout the night. | |
| Showers | High 90°F32°CFeels 96°F35°C | Low 76°F24°C | Precip 0.14 in3.6 mm43% | Cloud 62% | Wind WNW 6 mph10 km/h | Monday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 77°F25°C. Breezy from the NW at 7 to 8 mph11 to 12 km/h. 43% chance of showers throughout the day. Heat risk in the afternoon. Monday Night: Mostly cloudy, with a low around 76°F24°C. Light wind from the WNW around 6 mph9 km/h. 29% chance of showers throughout the night. | |
| Clear | High 88°F31°C | Low 72°F22°C | Precip 0.01 in0.2 mm6% | Cloud 35% | Wind NNW 5 mph8 km/h | Tuesday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 74°F23°C. Light wind from the NNW around 5 mph8 km/h. Tuesday Night: Partly cloudy, with a low around 72°F22°C. Light wind from the NNW around 5 mph8 km/h. | |
| Drizzle | High 91°F33°C | Low 70°F21°C | Precip 0.02 in0.5 mm13% | Cloud 42% | Wind SSW 5 mph7 km/h | Wednesday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 72°F22°C. Light wind from the SW around 4 mph7 km/h. 13% chance of drizzle in the afternoon. Wednesday Night: Partly cloudy, with a low around 70°F21°C. Light wind from the S around 5 mph8 km/h. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| ThursdayAug 13 | 94°F34°C | 74°F24°C | 0.01 in0.2 mm· 12% | 57% | Drizzle | NW 5 mph9 km/h | |
DayPartly cloudy and hot, with a high of 94°F34°C and morning low of 76°F25°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. NightMostly cloudy, with a low around 74°F24°C. Light wind from the NW around 4 mph7 km/h. 12% chance of drizzle overnight. | |||||||
| FridayAug 14 | 86°F30°C Feels 89°F31°C | 75°F24°C | 0.06 in1.5 mm· 29% | 85% | Light Rain | NNW 3 mph5 km/h | |
DayOvercast and hot, with a high of 86°F30°C and morning low of 77°F25°C. Light wind from the NNW around 3 mph5 km/h. 29% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 75°F24°C. Light wind from the NNW around 4 mph6 km/h. | |||||||
| SaturdayAug 15 | 89°F32°C | 73°F23°C | 0.03 in0.8 mm· 10% | 71% | Drizzle | E 4 mph7 km/h | |
DayMostly cloudy and hot, with a high of 89°F32°C and morning low of 75°F24°C. Light wind from the ENE around 4 mph6 km/h. 10% chance of drizzle throughout the day. NightMostly cloudy, with a low around 73°F23°C. Light wind from the ESE around 5 mph7 km/h. | |||||||
| SundayAug 16 | 85°F30°C Feels 93°F34°C | 75°F24°C | 0.4 in10.2 mm· 63% | 87% | Light Rain | S 6 mph10 km/h | |
DayOvercast and warm, with a high of 85°F30°C and morning low of 76°F24°C — feels like 93°F34°C. Breezy from the S at 7 mph11 km/h. 63% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 75°F24°C. Light wind from the S around 6 mph9 km/h. 51% chance of light rain throughout the night. | |||||||
| MondayAug 17 | 90°F32°C Feels 96°F35°C | 76°F24°C | 0.14 in3.6 mm· 43% | 62% | Showers | WNW 6 mph10 km/h | |
DayMostly cloudy and hot, with a high of 90°F32°C and morning low of 77°F25°C. Breezy from the NW at 7 to 8 mph11 to 12 km/h. 43% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 76°F24°C. Light wind from the WNW around 6 mph9 km/h. 29% chance of showers throughout the night. | |||||||
| TuesdayAug 18 | 88°F31°C | 72°F22°C | 0.01 in0.2 mm· 6% | 35% | Clear | NNW 5 mph8 km/h | |
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 74°F23°C. Light wind from the NNW around 5 mph8 km/h. NightPartly cloudy, with a low around 72°F22°C. Light wind from the NNW around 5 mph8 km/h. | |||||||
| WednesdayAug 19 | 91°F33°C | 70°F21°C | 0.02 in0.5 mm· 13% | 42% | Drizzle | SSW 5 mph7 km/h | |
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 72°F22°C. Light wind from the SW around 4 mph7 km/h. 13% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 70°F21°C. Light wind from the S around 5 mph8 km/h. | |||||||
| ThursdayAug 20 | 93°F34°C Feels 96°F36°C | 75°F24°C | 0.06 in1.4 mm· 20% | 54% | Showers | WSW 6 mph9 km/h | |
DayMostly cloudy and hot, with a high of 93°F34°C and morning low of 77°F25°C. Light wind from the WSW around 6 mph9 km/h. 20% chance of drizzle in the afternoon. Heat risk in the afternoon. NightMostly cloudy, with a low around 75°F24°C. Light wind from the SSW around 6 mph9 km/h. 19% chance of showers in the evening. | |||||||
| FridayAug 21 | 88°F31°C | 73°F23°C | 0.12 in3.1 mm· 22% | 53% | Showers | NNW 5 mph9 km/h | |
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 74°F23°C. Light wind from the NNW around 5 mph8 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 73°F23°C. Light wind from the NNW around 5 mph9 km/h. 22% chance of showers throughout the night. | |||||||
| SaturdayAug 22 | 85°F30°C | 69°F21°C | 0.1 in2.5 mm· 22% | 49% | Showers | NW 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 71°F22°C. Light wind from the NW around 5 mph8 km/h. 22% chance of showers throughout the day. NightPartly cloudy, with a low around 69°F21°C. Light wind from the NW around 5 mph8 km/h. 17% chance of showers throughout the night. | |||||||
| SundayAug 23 | 86°F30°C | 68°F20°C | 0.09 in2.4 mm· 14% | 45% | Drizzle | NW 5 mph8 km/h | |
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 70°F21°C. Light wind from the NW around 5 mph8 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 68°F20°C. Light wind from the W around 5 mph8 km/h. 12% chance of drizzle throughout the night. | |||||||
| MondayAug 24 | 87°F31°C | 68°F20°C | 0.09 in2.4 mm· 14% | 44% | Drizzle | W 5 mph8 km/h | |
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 71°F21°C. Light wind from the WNW around 5 mph8 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 68°F20°C. Light wind from the SW around 5 mph8 km/h. 14% chance of drizzle throughout the night. | |||||||
| TuesdayAug 25 | 87°F31°C | 69°F20°C | 0.06 in1.6 mm· 15% | 43% | Drizzle | WNW 5 mph8 km/h | |
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 71°F22°C. Light wind from the WNW around 5 mph8 km/h. 13% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 69°F20°C. Light wind from the WSW around 5 mph8 km/h. 15% chance of drizzle throughout the night. | |||||||
| WednesdayAug 26 | 87°F31°C | 69°F21°C | 0.07 in1.7 mm· 14% | 45% | Drizzle | WNW 5 mph8 km/h | |
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 71°F22°C. Light wind from the WNW around 5 mph9 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 69°F21°C. Light wind from the W around 5 mph8 km/h. 12% chance of drizzle throughout the night. | |||||||
| ThursdayAug 27 | 86°F30°C | 69°F21°C | 0.07 in1.8 mm· 16% | 47% | Drizzle | NW 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 70°F21°C. Light wind from the NW around 5 mph8 km/h. 16% chance of drizzle throughout the day. NightPartly cloudy, with a low around 69°F21°C. Light wind from the NW around 5 mph8 km/h. 16% chance of drizzle throughout the night. | |||||||
Nearby Cities
About This Forecast
This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.
WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →
Access WeatherMesh forecasts programmatically via our API. API Documentation →
Coordinates: 38.9695°N, 77.3861°W·Elevation: 110m·Timezone: America/New_York·Population: 24,568