| 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. | |||||||||||||||||
| 01 | 23:51 | SW 6 | 10.00 | Overcast | SCT018 BKN024 OVC055 | 38 | 33 | 40 | 37 | 83% | 33 | NA | 29.79 | 1009.4 | |||
| 01 | 22:51 | SW 9 | 10.00 | Overcast | SCT031 OVC042 | 39 | 33 | 79% | 33 | NA | 29.80 | 1009.5 | |||||
| 01 | 21:51 | SW 10 | 10.00 | Mostly Cloudy | BKN045 BKN080 | 38 | 32 | 79% | 31 | NA | 29.80 | 1009.5 | |||||
| 01 | 20:51 | S 9 | 10.00 | Partly Cloudy | SCT047 SCT075 | 37 | 32 | 82% | 30 | NA | 29.80 | 1009.7 | |||||
| 01 | 19:51 | S 8 | 10.00 | Overcast | FEW047 OVC060 | 39 | 33 | 79% | 33 | NA | 29.81 | 1009.7 | |||||
| 01 | 18:51 | S 9 | 10.00 | Overcast | OVC060 | 40 | 33 | 77% | 34 | NA | 29.82 | 1010.1 | |||||
| 01 | 17:51 | S 7 | 10.00 | Overcast | SCT043 OVC060 | 39 | 32 | 42 | 39 | 76% | 34 | NA | 29.83 | 1010.4 | |||
| 01 | 16:51 | SW 7 | 10.00 | Mostly Cloudy | BKN039 BKN045 | 41 | 31 | 67% | 36 | NA | 29.83 | 1010.4 | |||||
| 01 | 15:51 | SW 6 | 10.00 | Partly Cloudy | SCT034 | 41 | 31 | 67% | 37 | NA | 29.81 | 1009.7 | |||||
| 01 | 14:51 | SW 15 G 21 | 10.00 | Mostly Cloudy | BKN035 | 42 | 30 | 62% | 34 | NA | 29.80 | 1009.6 | |||||
| 01 | 13:51 | SW 14 | 10.00 | Mostly Cloudy | BKN039 | 41 | 29 | 62% | 33 | NA | 29.80 | 1009.7 | |||||
| 01 | 12:51 | SW 14 G 24 | 10.00 | Partly Cloudy | SCT036 SCT250 | 41 | 29 | 62% | 33 | NA | 29.81 | 1009.9 | |||||
| 01 | 11:51 | SW 14 | 10.00 | A Few Clouds | FEW028 FEW250 | 40 | 29 | 42 | 38 | 65% | 32 | NA | 29.81 | 1010.0 | |||
| 01 | 10:51 | SW 15 | 10.00 | Partly Cloudy | SCT022 | 40 | 31 | 70% | 32 | NA | 29.83 | 1010.5 | |||||
| 01 | 09:51 | SW 14 | 10.00 | Mostly Cloudy | BKN020 | 38 | 32 | 79% | 30 | NA | 29.83 | 1010.6 | |||||
| 01 | 08:51 | SW 20 | 10.00 | Mostly Cloudy | SCT021 BKN027 | 40 | 34 | 79% | 30 | NA | 29.83 | 1010.6 | |||||
| 01 | 07:51 | SW 9 | 10.00 | Overcast | BKN021 OVC027 | 41 | 35 | 79% | 35 | NA | 29.81 | 1009.8 | |||||
| 01 | 06:51 | SW 12 | 10.00 | Overcast | SCT013 BKN020 OVC030 | 41 | 37 | 86% | 34 | NA | 29.80 | 1009.4 | |||||
| 01 | 05:51 | W 10 | 6.00 | Light Drizzle Fog/Mist | FEW007 OVC013 | 42 | 40 | 43 | 41 | 92% | 36 | NA | 29.79 | 1009.2 | 0.18 | ||
| 01 | 04:51 | W 10 | 7.00 | Light Drizzle | BKN007 OVC013 | 43 | 42 | 97% | 37 | NA | 29.79 | 1009.2 | 0.01 | ||||
| 01 | 03:51 | S 6 | 3.00 | Light Rain Fog/Mist | OVC005 | 43 | 42 | 97% | 39 | NA | 29.79 | 1009.1 | 0.03 | ||||
| 01 | 02:51 | SE 6 | 3.00 | Thunderstorm Light Rain Fog/Mist | OVC005CB | 42 | 42 | 100% | 38 | NA | 29.80 | 1009.5 | 0.12 | 0.14 | |||
| 01 | 01:51 | SE 9 | 4.00 | Fog/Mist | OVC005 | 42 | 41 | 96% | 37 | NA | 29.81 | 1009.9 | 
Complete data after midnight (may be delayed 24-48 hours).
CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ... | NWS Chicago Office OBSERVED WEATHER REPORTS
SUMMARY:
Weather Underground Historical 24-Hour Weather Radar for Tuesday, December 1, 2015 …
| Twitter group from National Weather Service Chicago, Local Chicago Media, and The Weather Channel. | 
Rain mixed with Snow, becoming all Snow prior to 4 AM. Likely impact to morning commute. #ilwx #inwx pic.twitter.com/pHY4qsCFrL
— NWS Chicago (@NWSChicago) December 2, 2015
Snow showers Wed, with some impacts to commute likely. Shift to mild & dry pattern Friday thru weekend! #ilwx #inwx pic.twitter.com/z0cTXnwK6f
— NWS Chicago (@NWSChicago) December 1, 2015
November 2015 Climate Review for nrn IL & nw IN is now available! Go to https://t.co/neOr9Ur9Bi! pic.twitter.com/OGOtio0bYE
— NWS Chicago (@NWSChicago) December 1, 2015
Tranquil today, but snow & rain showers later tonight. Snow showers expected Wednesday morning during commute. pic.twitter.com/Y0A5ArIAxn
— NWS Chicago (@NWSChicago) December 1, 2015
First hours of Dec bringing isolated THUNDER storms to Northern IL. Snow showers 24 hours from now. #ClassicMidwest pic.twitter.com/tr9fdPChns
— NWS Chicago (@NWSChicago) December 1, 2015
CLIMATE DATA FROM THE NATIONAL WEATHER SERVICE CHICAGO OFFICE ...
+ + + +
000
CDUS43 KLOT 020636
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1234 AM CST WED DEC 2 2015
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 1 2015...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015
WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         43    534 AM  68    1970  40      3       25
  MINIMUM         37    945 PM  -6    1893  26     11       18
  AVERAGE         40                        33      7       22
PRECIPITATION (IN)
  YESTERDAY        0.18          1.23 2006   0.09   0.09     0.00
  MONTH TO DATE    0.18                      0.09   0.09     0.00
  SINCE DEC 1      0.18                      0.09   0.09     0.00
  SINCE JAN 1     35.16                     34.73   0.43    38.68
SNOWFALL (IN)
  YESTERDAY        0.0           7.8  1978   0.2   -0.2      0.0
  MONTH TO DATE    0.0                       0.2   -0.2      0.0
  SINCE DEC 1      0.0                       0.2   -0.2      0.0
  SINCE JUL 1     11.2                       1.6    9.6      2.9
  SNOW DEPTH       0
DEGREE DAYS
 HEATING
  YESTERDAY       25                        32     -7       43
  MONTH TO DATE   25                        32     -7       43
  SINCE DEC 1     25                        32     -7       43
  SINCE JUL 1    998                      1288   -290     1486
 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    806                       843    -37      799
..................................................................
WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED    10.4
SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  LIGHT RAIN
  FOG
RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     60           100 PM
 AVERAGE    80
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   40        71      1982
 MINIMUM TEMPERATURE (F)   25        -1      1942
                                             1893
SUNRISE AND SUNSET
DECEMBER  2 2015......SUNRISE   701 AM CST   SUNSET   421 PM CST
DECEMBER  3 2015......SUNRISE   702 AM CST   SUNSET   421 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 ...



















