Sterling, VA Weather

Loudoun County8:04 PM EDT39.01°N, 77.43°WElevation 292 ft

Current conditions

Clear
57°
Clear
Feels like 57°
High 67° Thursday·Low 42° tonight
WindN 3 mph
Humidity47%
Dew point37°
Pressure30.14 inHg
Visibility10 mi
Cloud cover0%
UV index0 Low
Sunrise7:26 AM
Sunset6:24 PM

Observed at Washington/Dulles International Airport, DC · 24 min ago

Forecast

10-day
  • Wednesday Night

    Mostly clear, with a low around 42. North wind around 6 mph.

  • Thursday

    Sunny, with a high near 67. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.

  • Thursday Night

    Mostly clear, with a low around 45. North wind around 7 mph.

National Weather Service forecast updated 21 hrs ago.

  1. Now Clear 53°
  2. 9 PM Clear 50°
  3. 10 PM Clear 49°
  4. 11 PM Clear 48°
  5. Thu12 AM Clear 47°
  6. 1 AM Clear 46°
  7. 2 AM Clear 45°
  8. 3 AM Mostly Clear 44°
  9. 4 AM Mostly Clear 44°
  10. 5 AM Mostly Clear 43°
  11. 6 AM Sunny 42°
  12. 7 AM Sunny 42°
  13. 8 AM Sunny 43°
  14. 9 AM Sunny 47°
  15. 10 AM Sunny 51°
  16. 11 AM Sunny 56°
  17. 12 PM Sunny 59°
  18. 1 PM Sunny 62°
  19. 2 PM Sunny 64°
  20. 3 PM Sunny 65°
  21. 4 PM Sunny 65°
  22. 5 PM Sunny 65°
  23. 6 PM Clear 63°
  24. 7 PM Clear 60°

10-day forecast

Details
  1. TonightOct 20 Clear Clear44°
  2. TodayOct 21 Sunny Sunny42°65°
  3. ThuOct 22 Sunny Sunny45°67°
  4. FriOct 23 Sunny Sunny39°60°
  5. SatOct 24 Sunny Sunny41°61°
  6. SunOct 25 Sunny Sunny44°65°
  7. MonOct 26 Sunny Sunny49°69°
  8. TueOct 27 Mostly Sunny Mostly Sunny66°
  9. WedOct 28 Cloudy Cloudy51°65°
  10. ThuOct 29 Partly cloudy Partly cloudy44°58°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news near Sterling

More weather news

Air quality

31
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • WedGood (33)
  • ThuGood (28)
  • FriGood (33)

Northern Virginia, VA reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:26 AM
Sunset 6:24 PM
Daylight 10 h 58 min (−2 min 23 s tomorrow)
Waxing Gibbous · 81% lit
Moonrise 3:59 PM Moonset 2:29 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low64° / 42°
Record high90° (1947)
Record low24° (1930)
Wettest2.02 in (1995)
Month to date3.10 in (normal 2.41 in)

Purcellville, records since 1900. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in LWX, issued 6 hrs ago

What Has Changed

Some adjustments made to lower dew points through Friday as NBM was too high given dry airmass. The Small Craft Advisory has been extended through Thursday evening.

Key Messages

- 1) Dry conditions and seasonable temperatures through early next week, with frost possible this weekend.

Discussion

KEY MESSAGE 1...Dry conditions and seasonable temperatures through early next week, with frost possible this weekend.

Omega block sets up across the CONUS with stout cutoff lows along the Western and Eastern coasts. Ridging across the central to eastern CONUS will maintain dry conditions over the Mid-Atlantic for the foreseeable future. Seasonal temperatures expected as highs generally reach the 60s each day, then fall back to the 30s to 40s at night. The omega block begins to shift eastward late this week, eventually breaking down over the weekend into the start of next week. This allows a series of surface high pressure systems to pass through the region, with dry cold fronts reinforcing the cooler, albeit seasonal, temperatures. One of these highs that passes directly overhead Friday into the weekend will allow for strong radiational cooling to occur. We could experience colder temps than currently forecast Friday night and Saturday night. If temps drop to the low to mid 30s along and west of I-95, frost will be possible. A slight warm up in temps to around 70F for next Monday and Tuesday.

Aviation

Prevailing VFR conditions are expected through Thursday with surface high pressure overhead. Dry conditions will prevail with light north winds today at less than 15 kts switching to the northwest Thursday. Highest winds will be at terminals (along and east of I- 95) near the waters with occasional gusts between 15-20 kts mainly during the late morning and afternoon hours. Winds will switch to the northeast Friday into Saturday at less than 15 kts.

VFR conditions continue Saturday through Monday with light and variable winds expected.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.