Thunder may be a little less likely than originally forecast for Tuesday, but rain will persist all day in Arlington Heights Tuesday, September 8, 2020, and will likely accumulate to at least 0.5 inch by midnight Tuesday/Wednesday. Rainfall accumulation overnight Monday/Tuesday was about 0.5 inch with temperatures in the upper 50s to low 60s in Chicagoland. Temperatures in northwest Illinois dropped into the low 50s. Daytime temperatures will show a significant gradient north to south in northeast Illinois …60s in north counties of Chicagoland and 80s in south counties. Winds will be steady from the northeast all day until about midnight.
Weather Radar shows a large area of rain approaching Chicagoland and northeast Illinois at 6:15 a.m. The lightning and thunder in this precipitation is along I-80 and just south of I-80.
Early-AM widespread showers and storms will slowly diminish in coverage, but scattered shower/storm chances will continue today and into Wednesday. Look for highs today & tomorrow to range from the 60s north of I-88 to the low-mid 80s south of I-80. #ILwx #INwx pic.twitter.com/mtjYmNl9d1
— NWS Chicago (@NWSChicago) September 8, 2020
Dangerous conditions will continue today and through at least Wednesday evening as strong and gusty onshore winds persist behind a cold front. A Lakeshore Flood Advisory is also in effect for the Illinois shore as waves build to 8 to 11 feet. Stay away from the lake! #ILwx #INwx pic.twitter.com/weFhgXGz9K
— NWS Chicago (@NWSChicago) September 8, 2020
O’HARE FORECAST …
Today: Showers and possibly a thunderstorm, mainly before 9am, then a chance of showers and thunderstorms after 9am. Some of the storms could produce heavy rainfall. High near 65. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 60. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday: A 30 percent chance of showers, mainly before 1pm. Cloudy, with a high near 65. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night: Mostly cloudy, with a low around 58. North northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday: Mostly cloudy, with a high near 68. Northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday Night: Mostly cloudy, with a low around 57.
Friday: Partly sunny, with a high near 70.
Friday Night: A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59.
Saturday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Saturday Night: A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 61.
Sunday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Sunday Night: Partly cloudy, with a low around 57.
Monday: Mostly sunny, with a high near 72.
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
906 AM CDT Mon Sep 7 2020
LAKE MICHIGAN WATER TEMPERATURES…
CHICAGO SHORE……….76.
CHICAGO CRIB……….71.
WILMETTE BUOY……….67.
WAUKEGAN BUOY……….59.
WINTHROP HARBOR BUOY……….51.
MICHIGAN CITY BUOY……….M.
SOUTH MID LAKE BUOY……….71.
NORTH MID LAKE BUOY……….62.
&&
M IS FOR MISSING DATA THAT IS NORMALLY AVAILABLE.
september.chicagoweatherstation.com
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
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