Reston, VA Weather

Fairfax County4:05 PM EDT38.97°N, 77.34°WElevation 328 ft

Current conditions

Sunny
65°
Sunny
Feels like 65°
High 65°·Low 46°
WindN 9 mph gusts 18 mph
Humidity37%
Dew point38°
Visibility10 mi
Cloud cover4%
UV index1 Low
Sunrise7:27 AM
Sunset6:23 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day
  • Thursday

    Sunny, with a high near 65. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.

  • Thursday Night

    Mostly clear, with a low around 46. North wind around 7 mph.

  • Friday

    Sunny, with a high near 62. Northeast wind around 7 mph.

National Weather Service forecast updated 17 hrs ago.

  1. Now Sunny 65°
  2. 5 PM Sunny 64°
  3. 6 PM Clear 62°
  4. 7 PM Clear 59°
  5. 8 PM Clear 53°
  6. 9 PM Clear 52°
  7. 10 PM Clear 51°
  8. 11 PM Mostly Clear 49°
  9. Fri12 AM Mostly Clear 48°
  10. 1 AM Clear 48°
  11. 2 AM Clear 48°
  12. 3 AM Mostly Clear 48°
  13. 4 AM Mostly Clear 48°
  14. 5 AM Mostly Clear 47°
  15. 6 AM Mostly Sunny 46°
  16. 7 AM Sunny 46°
  17. 8 AM Sunny 46°
  18. 9 AM Sunny 48°
  19. 10 AM Sunny 51°
  20. 11 AM Sunny 56°
  21. 12 PM Sunny 59°
  22. 1 PM Sunny 60°
  23. 2 PM Sunny 61°
  24. 3 PM Sunny 62°

10-day forecast

Details
  1. TonightOct 21 Clear Clear41°
  2. TodayOct 22 Sunny Sunny46°65°
  3. FriOct 23 Sunny Sunny39°62°
  4. SatOct 24 Sunny Sunny41°62°
  5. SunOct 25 Sunny Sunny42°64°
  6. MonOct 26 Sunny Sunny47°68°
  7. TueOct 27 Mostly Sunny Mostly Sunny47°68°
  8. WedOct 28 Partly Sunny Partly Sunny63°
  9. ThuOct 29 Mostly sunny Mostly sunny49°66°
  10. FriOct 30 Cloudy Cloudy49°66°

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

Radar

Full map
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Weather news near Reston

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Air quality

33
Good
Ozone

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

Forecast

  • ThuGood (28)
  • FriGood (33)
  • SatGood (44)

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 7:27 AM
Sunset 6:23 PM
Daylight 10 h 56 min (−2 min 23 s tomorrow)
Waxing Gibbous · 87% lit
Moonrise 4:23 PM Moonset 3:32 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low66° / 43°
Record high85° (1979)
Record low26° (1974)
Wettest0.90 in (1985)
Yesterday67° / 42°
Month to date3.61 in (normal 2.52 in)

Sterling-Dulles Airport Area, records since 1960. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in LWX, issued 1 hr ago

What Has Changed

Tidal flooding issues will continue into the weekend, with some headlines being extended. Check the latest CFW for updates.

Small Craft Advisories were extended into Friday, see the marine forecast discussion below for details.

Key Messages

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

Discussion

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

Surface high pressure remains to the north through Saturday with dry and seasonable conditions expected to continue. High temperatures today will be in the 60s for most with only highest elevations staying in the 50s. Tonight, low temperatures will be in the upper 30s to 40s. For Friday and Saturday, surface high pressure extends southward from Canada with dry cold fronts bringing in cooler air. High temperatures stay in the 50s to low 60s while overnight lows plummet into the 30s for most. The exception will be east of the I-95 corridor where low temperatures stay in the low 40s. Frost is possible Friday and Saturday night.

High pressure will continue to build southward into the region Sunday through Tuesday. Dry conditions and seasonable temperatures expected each day with light north to east winds. A backdoor cold front could try to push into the region Tuesday into Tuesday night, but will have very little to no moisture with it to produce any precipitation. A surge of cooler temperatures will follow behind the front for the day on Wednesday.

Aviation

North winds continue today with terminals near the metros gusting 15 to 20 knots this afternoon. Winds become light overnight before shifting to northeast on Friday. Winds blow 5 to 10 knots on Friday before becoming light and variable overnight. On Saturday, winds shift to easterly, remaining light throughout the day. VFR conditions are expected each day.

VFR conditions Sunday through Monday night. Winds light and variable through the period as high pressure sits overhead. Winds then turn out of the NNE on Tuesday AOB 10 knots for the most part.

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 4Conservative index and reflects what the press published. Terms of use.