• Login
  • Premium
  • myVentusky
  • About
  • Wind Animation
    ECMWF, GFS, ICON, GEM
    New: ECMWF model in high resolution with hourly forecast steps ECMWF

    Fairfax

    World / United States / Virginia

    38°50'N / 77°18'W / Altitude 130 m / 00:14 2025/12/19, America/New_York (UTC-5)

    fog 8 °C
    Wind speed 0 km/h
     
    Precipitation (1 hr.) 0.2 mm
    Humidity 93 %
    Air pressure 1008 hPa
    Visibility 10 km
    Clouds 100 %
    Cloud base 853 m

    Calculated from nearby stations (23:52 2025/12/18)

    Open Radar Map

    Weather for the next 24 hours

    01:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:0000:00 tomorrow01:00 tomorrow
    overcast with rain
    11 °C
    0.4 mm
    100 %
    SE
    20 km/h
    overcast with rain
    12 °C
    0.6 mm
    100 %
    SE
    29 km/h
    Gust:
    65 km/h
    overcast with rain
    13 °C
    2 mm
    100 %
    S
    31 km/h
    Gust:
    65 km/h
    overcast with rain
    13 °C
    0.5 mm
    100 %
    SE
    26 km/h
    Gust:
    61 km/h
    overcast with light rain
    14 °C
    0.1 mm
    80 %
    SE
    27 km/h
    Gust:
    54 km/h
    overcast with rain
    14 °C
    0.5 mm
    60 %
    S
    22 km/h
    Gust:
    50 km/h
    overcast with rain
    15 °C
    1 mm
    70 %
    S
    23 km/h
    Gust:
    50 km/h
    overcast with rain
    11 °C
    2 mm
    100 %
    W
    15 km/h
    overcast with rain
    10 °C
    0.4 mm
    90 %
    SW
    19 km/h
    Gust:
    50 km/h
    overcast with light rain
    10 °C
    0.2 mm
    60 %
    SW
    16 km/h
    Gust:
    47 km/h
    clear sky with few clouds
    11 °C
    0 mm
    0 %
    W
    18 km/h
    Gust:
    43 km/h
    overcast
    11 °C
    0 mm
    0 %
    SW
    21 km/h
    Gust:
    50 km/h
    overcast with light rain
    8 °C
    0.1 mm
    50 %
    W
    29 km/h
    Gust:
    58 km/h
    mostly cloudy
    5 °C
    0 mm
    10 %
    W
    37 km/h
    Gust:
    76 km/h
    overcast
    4 °C
    0 mm
    0 %
    W
    29 km/h
    Gust:
    58 km/h
    clear sky
    2 °C
    0 mm
    0 %
    W
    31 km/h
    Gust:
    65 km/h
    clear sky
    1 °C
    0 mm
    0 %
    W
    22 km/h
    Gust:
    54 km/h
    overcast
    1 °C
    0 mm
    0 %
    W
    17 km/h
    Gust:
    58 km/h
    clear sky
    0 °C
    0 mm
    0 %
    W
    41 km/h
    Gust:
    86 km/h
    clear sky
    -1 °C
    0 mm
    0 %
    W
    40 km/h
    Gust:
    79 km/h
    clear sky
    -1 °C
    0 mm
    0 %
    NW
    41 km/h
    Gust:
    86 km/h
    clear sky
    -1 °C
    0 mm
    0 %
    NW
    43 km/h
    Gust:
    90 km/h
    clear sky
    -1 °C
    0 mm
    0 %
    NW
    19 km/h
    Gust:
    68 km/h
    clear sky
    -1 °C
    0 mm
    0 %
    NW
    19 km/h
    Gust:
    61 km/h
    overcast
    -1 °C
    0 mm
    0 %
    NW
    15 km/h
    Gust:
    50 km/h

    Forecast

    01:0004:0007:0010:0013:0016:0019:0022:00
    overcast
    -1 °C
    0 mm
    0 %
    NW
    15 km/h
    Gust:
    50 km/h
    clear sky
    -1 °C
    0 mm
    0 %
    NW
    10 km/h
    clear sky
    -1 °C
    0 mm
    0 %
    N
    5 km/h
    overcast
    2 °C
    0 mm
    0 %
    S
    13 km/h
    partly cloudy
    7 °C
    0 mm
    0 %
    S
    17 km/h
    overcast
    8 °C
    0 mm
    0 %
    S
    19 km/h
    overcast
    5 °C
    0 mm
    0 %
    S
    19 km/h
    clear sky
    3 °C
    0 mm
    0 %
    S
    13 km/h

    Meteogram

    -1-10-70481264513158102616131914711813
    25
    20
    15
    10
    5
    0
    -5
    -10
    Fr
    19
    overcast with rain
    Sa
    20
    mostly cloudy
    Su
    21
    partly cloudy
    Mo
    22
    partly cloudy
    Tu
    23
    overcast with rain
    We
    24
    mostly cloudy
    Th
    25
    overcast
    Fr
    26
    mostly cloudy
    Sa
    27
    high clouds
    Su
    28
    overcast
    Mo
    29
    mostly cloudy
    Tu
    30
    overcast
    We
    31
    partly cloudy

    Air quality (AQI)


    Air quality index (marked as AQI) is developed by Environmental Protection Agency. Values over 300 represents hazardous air quality, between 200-300 very unhealthy, 150-200 unhealthy, 100-150 unhealthy for sensitive groups and below 100 or rather below 50 the air quality is good.

    Sun and Moon

    Heading: Time:
    Phase: Altitude:


    Heading: Time:
    Illumination: Altitude:


    Date rise set rise Illumination


    Phase Time Length