Aviation Digital Data Service (ADDS)

Output produced by TAFs form (1003 UTC 23 April 2017)
found at http://www.aviationweather.gov/adds/tafs/
 
METAR text: KORD 230951Z 00000KT 10SM CLR 04/M02 A3013 RMK AO2 SLP204 T00391017
Conditions at: KORD (CHICAGO O'HARE , IL, US) observed 0951 UTC 23 April 2017
Temperature: 3.9°C (39°F)
Dewpoint: -1.7°C (29°F) [RH = 67%]
Pressure (altimeter): 30.13 inches Hg (1020.4 mb)
[Sea-level pressure: 1020.4 mb]
Winds: calm
Visibility: 10 or more miles (16+ km)
Ceiling: at least 12,000 feet AGL
Clouds: sky clear below 12,000 feet AGL
Weather: no significant weather observed at this time

Forecast for: KORD (CHICAGO O'HARE , IL, US)
Text: KORD 230900Z 2309/2412 VRB03KT P6SM SKC
Forecast period: 0900 to 1400 UTC 23 April 2017
Forecast type: FROM: standard forecast or significant change
Winds: variable direction winds at 3 MPH (3 knots; 1.6 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period
Text: FM231400 30005KT P6SM SKC
Forecast period: 1400 to 2000 UTC 23 April 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the WNW (300 degrees) at 6 MPH (5 knots; 2.6 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: clear skies
Weather: no significant weather forecast for this period
Text: FM232000 09007KT P6SM FEW250
Forecast period: 2000 UTC 23 April 2017 to 1200 UTC 24 April 2017
Forecast type: FROM: standard forecast or significant change
Winds: from the E (90 degrees) at 8 MPH (7 knots; 3.6 m/s)
Visibility: 6 or more miles (10+ km)
Clouds: few clouds at 25000 feet AGL
Weather: no significant weather forecast for this period