Aviation Digital Data Service (ADDS)

Output produced by METARs form (1130 UTC 18 June 2019)
found at http://www.aviationweather.gov/metar/data/
 
Forecast for: KIAD (WASH DC/DULLES , VA, US)
Text: KIAD 180900Z 1809/1912 VRB03KT 5SM BR SCT020 BKN100
Forecast period: 0900 to 1200 UTC 18 June 2019
Forecast type: FROM: standard forecast or significant change
Winds: variable direction winds at 3 MPH (3 knots; 1.5 m/s)
Visibility: 5 miles (8 km)
Ceiling: 10000 feet AGL
Clouds: scattered clouds at 2000 feet AGL
broken clouds at 10000 feet AGL
Weather: BR  (mist)
Text: FM181200 25005KT P6SM SCT025 BKN120
Forecast period: 1200 to 1800 UTC 18 June 2019
Forecast type: FROM: standard forecast or significant change
Winds: from the WSW (250 degrees) at 6 MPH (5 knots; 2.6 m/s)
Visibility: 6 or more miles 10+ km)
Ceiling: 12000 feet AGL
Clouds: scattered clouds at 2500 feet AGL
broken clouds at 12000 feet AGL
Weather: no significant weather forecast for this period
Text: FM181800 23005KT 5SM -SHRA VCTS SCT025CB OVC040
Forecast period: 1800 UTC 18 June 2019 to 0300 UTC 19 June 2019
Forecast type: FROM: standard forecast or significant change
Winds: from the SW (230 degrees) at 6 MPH (5 knots; 2.6 m/s)
Visibility: 5 miles (8 km)
Ceiling: 4000 feet AGL
Clouds: scattered clouds at 2500 feet AGL
overcast cloud deck at 4000 feet AGL
Weather: -SHRA VCTS  (light rain showers, thunderstorm in vicinity)
Text: FM190300 19004KT 6SM -SHRA SCT020 OVC035
Forecast period: 0300 to 0900 UTC 19 June 2019
Forecast type: FROM: standard forecast or significant change
Winds: from the S (190 degrees) at 5 MPH (4 knots; 2.1 m/s)
Visibility: 6 miles (10 km)
Ceiling: 3500 feet AGL
Clouds: scattered clouds at 2000 feet AGL
overcast cloud deck at 3500 feet AGL
Weather: -SHRA  (light rain showers)
Text: FM190900 19004KT 5SM -SHRA OVC020
Forecast period: 0900 to 1200 UTC 19 June 2019
Forecast type: FROM: standard forecast or significant change
Winds: from the S (190 degrees) at 5 MPH (4 knots; 2.1 m/s)
Visibility: 5 miles (8 km)
Ceiling: 2000 feet AGL
Clouds: overcast cloud deck at 2000 feet AGL
Weather: -SHRA  (light rain showers)