| 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 | 22:51 | S 16 G 26 | 10.00 | Fair | CLR | 85 | 66 | 53% | NA | 87 | 29.80 | 1008.7 | |||||
| 20 | 21:51 | S 16 G 29 | 10.00 | Fair | CLR | 87 | 66 | 50% | NA | 89 | 29.80 | 1008.5 | |||||
| 20 | 20:51 | S 15 G 25 | 10.00 | Fair | CLR | 88 | 66 | 48% | NA | 90 | 29.79 | 1008.2 | |||||
| 20 | 19:51 | S 12 G 17 | 10.00 | A Few Clouds | FEW065 FEW250 | 89 | 66 | 47% | NA | 92 | 29.78 | 1008.0 | |||||
| 20 | 18:51 | S 6 | 10.00 | A Few Clouds | FEW055 FEW250 | 90 | 66 | 93 | 85 | 45% | NA | 92 | 29.79 | 1008.2 | |||
| 20 | 17:51 | S 12 | 10.00 | Partly Cloudy | FEW050 FEW075 SCT250 | 92 | 68 | 46% | NA | 96 | 29.80 | 1008.5 | |||||
| 20 | 16:51 | S 10 | 10.00 | Partly Cloudy | SCT048 SCT250 | 91 | 68 | 47% | NA | 95 | 29.82 | 1009.1 | |||||
| 20 | 15:51 | S 6 | 10.00 | Partly Cloudy | SCT048 SCT250 | 90 | 72 | 56% | NA | 98 | 29.83 | 1009.6 | |||||
| 20 | 14:51 | S 10 | 8.00 | Partly Cloudy | SCT042 SCT250 | 91 | 71 | 52% | NA | 98 | 29.86 | 1010.5 | |||||
| 20 | 13:51 | S 8 | 10.00 | A Few Clouds | FEW040 FEW250 | 89 | 72 | 57% | NA | 96 | 29.89 | 1011.5 | |||||
| 20 | 12:51 | S 8 | 9.00 | Partly Cloudy | SCT250 | 85 | 72 | 86 | 68 | 65% | NA | 91 | 29.92 | 1012.6 | |||
| 20 | 11:51 | S 8 | 7.00 | Mostly Cloudy | BKN250 | 81 | 71 | 72% | NA | 85 | 29.95 | 1013.7 | |||||
| 20 | 10:51 | SE 9 | 6.00 | Mostly Cloudy with Haze | FEW012 BKN250 | 77 | 70 | 79% | NA | 79 | 29.96 | 1014.2 | |||||
| 20 | 09:51 | SE 7 | 5.00 | Overcast with Haze | OVC012 | 74 | 69 | 85% | NA | NA | 29.98 | 1014.8 | |||||
| 20 | 08:51 | NE 5 | 4.00 | Fog/Mist | OVC011 | 71 | 68 | 90% | NA | NA | 29.98 | 1014.8 | |||||
| 20 | 07:51 | Calm | 5.00 | Fog/Mist | FEW045 SCT095 BKN170 OVC250 | 70 | 67 | 90% | NA | NA | 29.97 | 1014.5 | |||||
| 20 | 06:51 | Calm | 5.00 | Fog/Mist | FEW011 BKN080 BKN110 OVC250 | 68 | 66 | 68 | 66 | 93% | NA | NA | 29.97 | 1014.5 | |||
| 20 | 05:51 | Calm | 7.00 | Overcast | SCT075 BKN110 OVC250 | 68 | 66 | 93% | NA | NA | 29.94 | 1013.7 | |||||
| 20 | 04:51 | Calm | 8.00 | Overcast | BKN100 OVC250 | 67 | 65 | 93% | NA | NA | 29.94 | 1013.4 | |||||
| 20 | 03:51 | Calm | 9.00 | Overcast | FEW007 FEW120 OVC250 | 67 | 65 | 93% | NA | NA | 29.95 | 1013.7 | |||||
| 20 | 02:51 | N 6 | 9.00 | Overcast | FEW007 SCT120 OVC250 | 67 | 65 | 93% | NA | NA | 29.97 | 1014.5 | |||||
| 20 | 01:51 | Calm | 9.00 | Mostly Cloudy | FEW100 BKN250 | 68 | 65 | 90% | NA | NA | 29.97 | 1014.4 | |||||
| 20 | 00:51 | NE 3 | 9.00 | Overcast | SCT006 OVC250 | 67 | 65 | 68 | 66 | 93% | NA | NA | 29.98 | 1014.9 |
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. |
A new record high temperature of 93 degrees was set at Chicago-O'Hare today (Sept 20th). The previous record was 92 degrees set in 2017.
— NWS Chicago (@NWSChicago) September 20, 2018
While seasonable fall temperatures are expected this weekend after what has been mainly summer temps throughout September, signs for late next week into early October are pointing toward the first relatively extended period of unseasonably chilly weather since April. #ilwx #inwx pic.twitter.com/Vc7KubTnfB
— NWS Chicago (@NWSChicago) September 20, 2018
Strong cold front will bring fall temps to the area for the wknd. Chance for scattered showers & storms tonight into Fri. AM w/front. Expect falling temps by mid Fri. aftn w/breezy NW winds. Pleasant aftn temps & plenty of sun over wknd after chilly early AMs. #ilwx #inwx pic.twitter.com/n5RkaIBOSK
— NWS Chicago (@NWSChicago) September 20, 2018
Temps in low-mid 90s in many spots as of 3pm with heat index around 100°. Likely last hot day of 2018. Remember heat safety! #Chicago-O'Hare (CHI climate site) reached as high as 91°. Daily record is 92° set in 2017. #ilwx #inwx pic.twitter.com/UVt5fvRC0M
— NWS Chicago (@NWSChicago) September 20, 2018
With today likely the last hot day of 2018 in northern Illinois and northwest Indiana, remember heat safety! #ilwx #inwx pic.twitter.com/fytBZIMWBk
— NWS Chicago (@NWSChicago) September 20, 2018
11am hour temp check shows areas S of I-80 warming very quickly w/ some locations already up to 90°! Warming will continue to spread northward, with many spots near or above 90° this aftn. Exception could be parts of IL shore due to onshore winds holding on longer. #ilwx #inwx pic.twitter.com/YtAx7fvDzd
— NWS Chicago (@NWSChicago) September 20, 2018
T-storms moving across the far nrn/NW #Chicago burbs this AM should exit over the lake by ~8am-8:30am. Main hazards: lightning, heavy rain & possibly gusty winds to ~30 mph. If you are outdoors & hear thunder or see lightning, head indoors until the t-storms safely pass. #ilwx pic.twitter.com/HWvRZsEVr6
— NWS Chicago (@NWSChicago) September 20, 2018
Hot and humid today with a few scattered storms. Dry and cooler this weekend. #ILWX #INWX pic.twitter.com/xgLwojfyP4
— NWS Chicago (@NWSChicago) September 20, 2018
Scattered thunderstorms possible over far northern IL early this morning. #ILWX pic.twitter.com/Po4tc9gKV1
— NWS Chicago (@NWSChicago) September 20, 2018
Thunderstorms will develop across far northern IL through the pre-dawn hours. Heavy rain possible near WI border. pic.twitter.com/EuW6A5ejE7
— NWS Chicago (@NWSChicago) September 20, 2018
The risk for severe weather, including a few tornadoes, will increase later this afternoon into the evening hours across the Upper Midwest: https://t.co/9y0tiC0pHm pic.twitter.com/50DrJrDLJF
— The Weather Channel (@weatherchannel) September 20, 2018
Heavy rainfall and possible #flooding are expected in parts of Texas, Oklahoma and Arkansas late this week: https://t.co/wJGqywvobO pic.twitter.com/Y6vfC0To1D
— The Weather Channel (@weatherchannel) September 20, 2018
#Severe thunderstorms and a #flood threat will spread from the upper Midwest to the Northeast Thursday-Friday: https://t.co/9y0tiC0pHm pic.twitter.com/vXwxyKX6Jv
— The Weather Channel (@weatherchannel) September 20, 2018
CLIMATE DATA FROM THE NATIONAL WEATHER SERVICE CHICAGO OFFICE ...
+ + + +
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT FRI SEP 21 2018
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 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 93R 426 PM 92 2017 73 20 92
MINIMUM 66 310 AM 36 1991 52 14 62
AVERAGE 80 63 17 77
PRECIPITATION (IN)
YESTERDAY 0.00 1.33 2001 0.11 -0.11 0.00
MONTH TO DATE 3.25 2.18 1.07 0.32
SINCE SEP 1 3.25 2.18 1.07 0.32
SINCE JAN 1 37.48 27.31 10.17 32.06
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 1 44 -43 29
SINCE SEP 1 1 44 -43 29
SINCE JUL 1 1 57 -56 34
COOLING
YESTERDAY 15 2 13 12
MONTH TO DATE 168 78 90 76
SINCE SEP 1 168 78 90 76
SINCE JAN 1 1245 818 427 859
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 7.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 47 400 PM
AVERAGE 70
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 94 2017
MINIMUM TEMPERATURE (F) 52 39 1991
1983
1889
SUNRISE AND SUNSET
SEPTEMBER 21 2018.....SUNRISE 638 AM CDT SUNSET 651 PM CDT
SEPTEMBER 22 2018.....SUNRISE 639 AM CDT SUNSET 649 PM CDT
- 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 ...
