| D a t e | Time (cst) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Temperature (ºF) | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | Pressure | Precipitation (in.) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | |||||||||||||||||
| 20 | 23:51 | N 14 G 21 | 4.00 | Light Rain Fog/Mist | OVC006 | 38 | 36 | 42 | 38 | 93% | 30 | NA | 29.58 | 1002.0 | 0.01 | 0.05 | |
| 20 | 22:51 | N 14 | 4.00 | Light Rain Fog/Mist | OVC007 | 38 | 37 | 97% | 30 | NA | 29.59 | 1002.5 | |||||
| 20 | 21:51 | N 12 | 4.00 | Light Rain Fog/Mist | OVC008 | 38 | 37 | 97% | 30 | NA | 29.60 | 1002.7 | |||||
| 20 | 20:51 | N 12 | 4.00 | Light Rain Fog/Mist | OVC008 | 38 | 37 | 97% | 30 | NA | 29.61 | 1002.9 | 0.01 | 0.04 | |||
| 20 | 19:51 | N 12 | 3.00 | Light Rain Fog/Mist | OVC006 | 39 | 38 | 96% | 32 | NA | 29.63 | 1003.7 | 0.01 | ||||
| 20 | 18:51 | N 10 | 3.00 | Light Rain Fog/Mist | OVC005 | 39 | 38 | 96% | 32 | NA | 29.63 | 1003.7 | 0.02 | ||||
| 20 | 17:51 | N 13 | 4.00 | Light Rain Fog/Mist | BKN004 OVC008 | 42 | 41 | 46 | 42 | 96% | 35 | NA | 29.63 | 1003.7 | 0.01 | 0.02 | |
| 20 | 16:51 | N 7 | 1.50 | Light Rain Fog/Mist | BKN004 OVC009 | 44 | 43 | 96% | 40 | NA | 29.63 | 1003.5 | 0.01 | ||||
| 20 | 15:51 | NW 3 | 0.75 | Fog/Mist | OVC004 | 45 | 44 | 97% | NA | NA | 29.62 | 1003.4 | |||||
| 20 | 14:51 | Calm | 3.00 | Fog/Mist | OVC005 | 45 | 44 | 97% | NA | NA | 29.61 | 1003.1 | |||||
| 20 | 13:51 | SW 5 | 2.50 | Fog/Mist | OVC005 | 45 | 44 | 97% | 42 | NA | 29.61 | 1002.9 | |||||
| 20 | 12:51 | S 6 | 2.00 | Fog/Mist | OVC004 | 45 | 44 | 97% | 42 | NA | 29.62 | 1003.3 | |||||
| 20 | 11:51 | S 6 | 2.00 | Fog/Mist | OVC004 | 45 | 44 | 45 | 42 | 97% | 42 | NA | 29.65 | 1004.3 | 0.02 | ||
| 20 | 10:51 | S 7 | 3.00 | Fog/Mist | OVC005 | 44 | 43 | 96% | 40 | NA | 29.67 | 1005.1 | |||||
| 20 | 09:51 | S 8 | 5.00 | Fog/Mist | OVC006 | 44 | 42 | 93% | 39 | NA | 29.67 | 1005.2 | |||||
| 20 | 08:51 | S 6 | 4.00 | Fog/Mist | OVC009 | 43 | 41 | 93% | 39 | NA | 29.68 | 1005.2 | 0.02 | ||||
| 20 | 07:51 | SE 10 | 4.00 | Fog/Mist | BKN009 OVC055 | 42 | 41 | 96% | 36 | NA | 29.67 | 1005.0 | 0.02 | ||||
| 20 | 06:51 | S 7 | 7.00 | Overcast | FEW009 SCT060 OVC080 | 42 | 39 | 89% | 38 | NA | 29.66 | 1004.6 | |||||
| 20 | 05:51 | S 6 | 9.00 | Light Rain | FEW015 BKN070 OVC090 | 42 | 39 | 44 | 42 | 89% | 38 | NA | 29.67 | 1004.9 | |||
| 20 | 04:51 | S 6 | 9.00 | Overcast | OVC100 | 42 | 39 | 89% | 38 | NA | 29.66 | 1004.6 | |||||
| 20 | 03:51 | S 6 | 10.00 | Overcast | OVC100 | 42 | 38 | 85% | 38 | NA | 29.67 | 1004.8 | |||||
| 20 | 02:51 | S 6 | 10.00 | Overcast | OVC120 | 43 | 38 | 82% | 39 | NA | 29.68 | 1005.4 | |||||
| 20 | 01:51 | S 6 | 10.00 | Overcast | FEW041 OVC150 | 43 | 38 | 82% | 39 | NA | 29.69 | 1005.7 | |||||
| 20 | 00:51 | S 8 | 10.00 | Overcast | OVC041 | 44 | 38 | 79% | 39 | NA | 29.70 | 1006.0 |
Complete data after midnight (may be delayed 24-48 hours).
CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ... | NWS Chicago Office OBSERVED WEATHER REPORTS
FORECAST:
Chicago Weather Forecast
Chicago Weather Radar
| Twitter group from National Weather Service Chicago, Local Chicago Media, and The Weather Channel. |
Widespread dense fog has developed across western portions of the forecast area this morning. Dense fog is expected to continue into this afternoon before a cold front filters drier air into the area. pic.twitter.com/CQrJ0mY4wJ
— NWS Chicago (@NWSChicago) December 20, 2018
Widespread dense fog continues to shift east ahead of an approaching cold front. The Dense Fog Advisory has been expanded to include Cook, DuPage, and Lake (IL) counties through 6pm. pic.twitter.com/LG4QwA4NnC
— NWS Chicago (@NWSChicago) December 20, 2018
Temps in the 40s likely today, however, cloudy skies w/ periodic light rain/drizzle can be expected. Rain snow mix possible tonight & Fri. pic.twitter.com/aR3vwxR9Sa
— NWS Chicago (@NWSChicago) December 20, 2018
Light rain/drizzle will continue through much of the night and may mix w/ or briefly change to non-accumulating snow before ending. A mix of rain and snow will likely continue across northwest IN on Fri. pic.twitter.com/6egCXNhYfN
— NWS Chicago (@NWSChicago) December 20, 2018
This East Coast storm will lead to travel headaches through Friday for those getting an early start on #Christmas travel: https://t.co/hKSjUXeoLE pic.twitter.com/G6mXhAW8uL
— The Weather Channel (@weatherchannel) December 20, 2018
Post-Christmas system may spread #snow, #rain and wind into the Plains, Midwest, South and East: https://t.co/xFB7EirCvk pic.twitter.com/FNXR1zg2HN
— The Weather Channel (@weatherchannel) December 20, 2018
CLIMATE DATA FROM THE NATIONAL WEATHER SERVICE CHICAGO OFFICE ...
+ + + +
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1240 AM CST FRI DEC 21 2018
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 20 2018...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 46 232 PM 67 1877 33 13 37
MINIMUM 38 1159 PM -9 1963 19 19 27
AVERAGE 42 26 16 32
PRECIPITATION (IN)
YESTERDAY 0.10 1.67 1895 0.06 0.04 0.00
MONTH TO DATE 1.62 1.58 0.04 0.29
SINCE DEC 1 1.62 1.58 0.04 0.29
SINCE JAN 1 47.53 36.22 11.31 42.80
SNOWFALL (IN)
YESTERDAY 0.0 11.0 1960 0.3 -0.3 0.0
2002
MONTH TO DATE 0.3 4.9 -4.6 2.0
SINCE DEC 1 0.3 4.9 -4.6 2.0
SINCE JUL 1 13.0 6.3 6.7 2.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 39 -16 33
MONTH TO DATE 643 717 -74 616
SINCE DEC 1 643 717 -74 616
SINCE JUL 1 2006 1973 33 1659
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1290 843 447 991
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 7.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 PM
LOWEST 76 1200 AM
AVERAGE 88
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 62 1967
MINIMUM TEMPERATURE (F) 19 -14 1989
SUNRISE AND SUNSET
DECEMBER 21 2018......SUNRISE 716 AM CST SUNSET 423 PM CST
DECEMBER 22 2018......SUNRISE 717 AM CST SUNSET 424 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
+ + + +
HOMETOWN WEATHER: Arlington Heights Weather Forecast -- Arlingtoncardinal.com/weather
LIVE RADAR | STORM TRACKS | CLOUDS INFRARED SAT | CLOUDS VISIBLE SAT (during daylight)
WunderMap® US Temperature/Wind Data || WunderMap®: O'Hare Temps | NE Illinois Temps
Full Screen Motion Weather Radar (Wunderground.com) Midwest Cloud Cover and Arlington Heights Weather Forecast | SWPC Aurora Forecast
SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with azimuth & trajectory, times for dawn, sunrise, solar noon, sunset, dusk ...
