Rapid Clearing, Sunny Thursday Afternoon; High 88°F; Start of Excessive Heat Delayed to Friday, Arlington Heights, Chicago Weather Forecast Northwest

In case you didn’t figure it out yourself already, today’s actual weather is way off the mark from yesterday’s forecast. The overnight low Wednesday/Thursday was in the low 70s, which was the first hint that heat would not be building today. Thunderstorms that were expected about 1:00 a.m. to 4:00 a.m. early Thursday didn’t arrive until 6:30 a.m., when the sun would have begun heating the day. An Excessive Heat Warning issued yesterday afternoon, which was supposed to go into effect today, has been pushed back to a start time of 10:00 am. CDT Friday July 2019. The Excessive Heat Warning will remain in effect until Saturday July 20, 2019 at 7:00 p.m. The overnight low Thursday/Friday is forecast to be about 78°F.

Weather Radar (also nexrad.chgowx.com) shows storms moving off to the east at 12:25 p.m. Existing small storm cells to the west of our area are diminishing as hot and dry is beginning to win over cool and wet.




 O’HARE FORECAST … 

EXCESSIVE HEAT WARNING NOW IN EFFECT FROM 10 AM FRIDAY TO 7 PM CDT SATURDAY

This Afternoon: Showers and thunderstorms, mainly before 1pm. High near 88. Heat index values as high as 97. East wind 10 to 15 mph becoming south. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Friday: Mostly sunny and hot, with a high near 98. Heat index values as high as 110. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 80. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Saturday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 97. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

Sunday: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.

Sunday Night: Mostly cloudy, with a low around 68.

Monday: Mostly sunny, with a high near 83.

Monday Night: Mostly clear, with a low around 64.

Tuesday: Sunny, with a high near 84.

Tuesday Night: Mostly clear, with a low around 64.

Wednesday: Sunny, with a high near 86.

 LAKE TEMPS … 

SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
901 AM CDT Thu Jul 18 2019

LAKE MICHIGAN WATER TEMPERATURES…

CHICAGO SHORE……….76.

CHICAGO CRIB……….67.

WILMETTE BUOY……….70.

WAUKEGAN BUOY……….69.

WINTHROP HARBOR BUOY……….66.

MICHIGAN CITY……….58.

MICHIGAN CITY BUOY……….75.

SOUTH MID LAKE BUOY……….71.

NORTH MID LAKE BUOY……….64.

&&

M IS FOR MISSING DATA THAT IS NORMALLY AVAILABLE.

THE MICHIGAN CITY WATER TEMPERATURE SENSOR IS LOCATED AT A WATER
INTAKE ONE MILE OFFSHORE AND 60 FEET BELOW WATER SURFACE. IT IS READ EVERY DAY OF THE YEAR.

july.chicagoweatherstation.com

Arlingtoncardinal.com/radar

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