Aviation Digital Data Service (ADDS)

Output produced by METARs form (0509 UTC 20 September 2020)
found at http://aviationweather.gov/metar/data/
 
METAR text: KIAD 200452Z 31003KT 10SM CLR 06/04 A3038 RMK AO2 SLP287 T00610039 401890061 $
Conditions at: KIAD (WASH DC/DULLES , VA, US) observed 0452 UTC 20 September 2020
Temperature: 6.1°C (43°F)
Dewpoint: 3.9°C (39°F) [RH = 86%]
Pressure (altimeter): 30.38 inches Hg (1028.9 mb)
[Sea-level pressure: 1028.7 mb]
Winds: from the NW (310 degrees) at 3 MPH (3 knots; 1.5 m/s)
Visibility: 10 or more miles (16+ km)
Ceiling: at least 12,000 feet AGL
Clouds: sky clear below 12,000 feet AGL
Weather:
SOME DATA ABOVE MAY BE INACCURATE!!!
"$" is an indication the sensor requires maintenance

Forecast for: KIAD (WASH DC/DULLES , VA, US)
Text: KIAD 192322Z 2000/2106 02007KT P6SM SKC
Forecast period: 0000 to 0800 UTC 20 September 2020
Forecast type: FROM: standard forecast or significant change
Winds: from the NNE (20 degrees) at 8 MPH (7 knots; 3.6 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period
Text: FM200800 36004KT P6SM SKC
Forecast period: 0800 to 1500 UTC 20 September 2020
Forecast type: FROM: standard forecast or significant change
Winds: from the N (360 degrees) at 5 MPH (4 knots; 2.1 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period
Text: FM201500 04007KT P6SM SKC
Forecast period: 1500 UTC 20 September 2020 to 0200 UTC 21 September 2020
Forecast type: FROM: standard forecast or significant change
Winds: from the NE (40 degrees) at 8 MPH (7 knots; 3.6 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period
Text: FM210200 VRB03KT P6SM SKC
Forecast period: 0200 to 0600 UTC 21 September 2020
Forecast type: FROM: standard forecast or significant change
Winds: variable direction winds at 3 MPH (3 knots; 1.5 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period