UPDATE: TORNADO WATCH NOW INCLUDES COOK COUNTY AND LAKE COUNTY …
A TORNADO WATCH in Northern Illinois does not include Cook County or Lake County, but does include the northeast county of Will County in northern Illinois.
A tornado has already been reported near Pontiac, Illinois.
TODAY SUNRISE: 6:03 AM SUNSET: 7:48 PM
MOBILE FRIENDLY …
Tornado Watch
WATCH COUNTY NOTIFICATION FOR WATCH 494 NATIONAL WEATHER SERVICE CHICAGO IL 441 PM CDT TUE AUG 18 2015 ILC043-053-063-075-089-091-093-111-197-190300- /O.EXA.KLOT.TO.A.0494.000000T0000Z-150819T0300Z/ THE NATIONAL WEATHER SERVICE HAS EXTENDED TORNADO WATCH 494 TO INCLUDE THE FOLLOWING AREAS UNTIL 10 PM CDT THIS EVENING IN ILLINOIS THIS WATCH INCLUDES 9 COUNTIES IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTHEAST ILLINOIS DUPAGE GRUNDY KANE KANKAKEE KENDALL MCHENRY WILL THIS INCLUDES THE CITIES OF...AURORA...JOLIET...KANKAKEE... MORRIS...OSWEGO...PIPER CITY...WATSEKA...WHEATON AND WOODSTOCK. $$
NWS POINT FORECAST …
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. South southeast wind around 10 mph.
Tonight
Showers and thunderstorms, mainly before 2am. Low around 70. South wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, with a high near 77. South wind around 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 59. West southwest wind around 15 mph, with gusts as high as 20 mph.
AIRPORT WEATHER OBSERVATIONS …
| Location | Time (cdt) |
Sky/Weather | Temp. (ºF) |
Dewpt. (ºF) |
Humidity (%) |
Wind (mph) |
Pressure (in) |
|
|---|---|---|---|---|---|---|---|---|
| Chicago/O’Hare | 16:51 | Mostly Cloudy | 81 | 68 | 65 | S 12 | 29.73 | |
| Chicago Midway Airport | 16:53 | Mostly Cloudy | 84 | 68 | 59 | S 13 | 29.73 | |
| Chicago Executive Airport | 16:52 | Fair | 81 | 65 | 58 | S 10 | 29.74 | |
| Chicago / West Chicago, Dupage Airport | 16:52 | Partly Cloudy | 80 | 69 | 69 | SE 8 | 29.72 | |
| Aurora Municipal Airport | 16:52 | A Few Clouds | 79 | 69 | 72 | SE 14 | 29.72 | |
| Gary Chicago International | 15:45 | Mostly Cloudy | NA | NA | NA | S 9 | 29.79 | |
| Kenosha Regional Airport | 16:53 | Fair | 78 | 67 | 69 | SE 9 | 29.74 | |
| Chicago / Waukegan, Waukegan Regional Airport | 16:55 | Fair | 75 | 67 | 76 | SE 10 | 29.73 | |
| Lansing Municipal Airport | 16:55 | Partly Cloudy | 80 | 70 | 71 | SE 7 | 29.75 | |
| Click on location name for the weather during the past two days at that site. | ||||||||
CHICAGO EXECUTIVE AIRPORT …
| D a t e |
Time (cdt) |
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. | Min. | ||||||||||||||||
| 18 | 16:52 | S 10 | 10.00 | Fair | CLR | 81 | 65 | 58% | NA | 83 | 29.74 | 1006.5 | |||||
| 18 | 15:52 | S 10 | 10.00 | Mostly Cloudy | SCT039 BKN050 | 82 | 66 | 58% | NA | 84 | 29.77 | 1007.7 | |||||
| 18 | 14:52 | S 7 | 10.00 | Partly Cloudy | SCT038 SCT045 | 81 | 64 | 57% | NA | 83 | 29.80 | 1008.7 | |||||
| 18 | 13:52 | Vrbl 7 | 10.00 | A Few Clouds | FEW034 | 81 | 65 | 58% | NA | 83 | 29.83 | 1009.7 | |||||
| 18 | 12:52 | S 7 | 10.00 | Partly Cloudy | SCT032 | 78 | 64 | 79 | 69 | 62% | NA | 80 | 29.84 | 1010.1 | |||
| 18 | 11:52 | S 7 | 10.00 | A Few Clouds | FEW027 | 78 | 65 | 64% | NA | 80 | 29.86 | 1010.8 | |||||
| 18 | 10:52 | SW 7 | 10.00 | Mostly Cloudy | BKN026 | 77 | 64 | 64% | NA | 79 | 29.87 | 1011.1 | |||||
| 18 | 09:52 | S 7 | 10.00 | A Few Clouds | FEW019 | 75 | 64 | 69% | NA | NA | 29.88 | 1011.4 | |||||
| 18 | 08:52 | S 6 | 10.00 | Fair | CLR | 72 | 66 | 82% | NA | NA | 29.89 | 1011.7 | |||||
| 18 | 07:52 | Calm | 10.00 | Fair | CLR | 70 | 66 | 87% | NA | NA | 29.92 | 1012.7 | |||||
| 17 | 15:52 | NE 8 | 10.00 | Thunderstorm in Vicinity | SCT050 BKN070 | 84 | 68 | 59% | NA | 87 | 29.96 | 1014.0 | |||||
| 17 | 14:52 | W 7 | 10.00 | Thunderstorm in Vicinity | CLR | 88 | 64 | 45% | NA | 89 | 29.97 | 1014.2 | |||||
| 17 | 13:52 | S 7 | 10.00 | Fair | CLR | 86 | 66 | 51% | NA | 88 | 29.99 | 1014.9 | |||||
| 17 | 12:52 | Vrbl 7 | 10.00 | A Few Clouds | FEW047 FEW065 | 88 | 65 | 89 | 72 | 46% | NA | 90 | 30.01 | 1015.7 | |||
| 17 | 11:52 | S 5 | 10.00 | A Few Clouds | FEW047 FEW095 | 86 | 66 | 51% | NA | 88 | 30.03 | 1016.4 | |||||
| 17 | 10:52 | W 7 | 10.00 | Fair | CLR | 85 | 66 | 53% | NA | 87 | 30.05 | 1016.9 | |||||
| 17 | 09:52 | SW 7 | 10.00 | Fair | CLR | 84 | 67 | 57% | NA | 87 | 30.05 | 1017.1 | |||||
| 17 | 08:52 | SW 9 | 10.00 | Fair | CLR | 80 | 67 | 64% | NA | 82 | 30.06 | 1017.3 | |||||
| 17 | 07:52 | S 7 | 10.00 | Fair | CLR | 76 | 67 | 74% | NA | 77 | 30.07 | 1017.7 | |||||
| 17 | 06:52 | S 5 | 8.00 | Fair | CLR | 72 | 67 | 76 | 70 | 84% | NA | NA | 30.06 | 1017.5 | |||
| 17 | 05:52 | S 5 | 10.00 | Fair | CLR | 70 | 66 | 87% | NA | NA | 30.06 | 1017.4 | |||||
| 17 | 04:52 | Calm | 10.00 | Fair | CLR | 71 | 66 | 84% | NA | NA | 30.05 | 1017.0 | |||||
| 17 | 03:52 | S 3 | 10.00 | Fair | CLR | 73 | 67 | 81% | NA | NA | 30.05 | 1016.9 | |||||
| 17 | 02:52 | S 5 | 10.00 | Fair | CLR | 74 | 67 | 79% | NA | NA | 30.04 | 1016.8 | |||||
| 17 | 01:52 | SW 5 | 10.00 | Fair | CLR | 75 | 67 | 76% | NA | NA | 30.05 | 1017.0 | |||||
| 17 | 00:52 | SW 5 | 10.00 | Fair | CLR | 76 | 67 | 86 | 76 | 74% | NA | 77 | 30.06 | 1017.2 | |||
MORE HELPFUL LINKS …
LIVE RADAR | STORM TRACKS | UNISYS US IR SAT | UNISYS Midwest IR SAT | UNISYS More IR SAT
WunderMap® with Temperature/Wind Data || Google: Arlington Heights Temps | NE Illinois Temps
Full Screen Motion Weather Radar (Wunderground.com)
Midwest Cloud Cover with Arlington Heights Weather Forecast | SWPC Aurora Forecast
ChicagoWeatherStation.com I O’Hare Normal Temps/Precip I O’Hare Record Temps, Precip, Snow
SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with solar azimuth and trajectory, times for dawn, sunrise, solar noon, sunset, dusk …
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