Period of showers and scattered thunderstorms with a cold front are forecast from tonight into Friday with the greatest thunderstorm activity likely between 3am and 5am, and 1pm and 3pm. A weakening line of showers and thunderstorms is forecast to move across northern Illinois and northwest Indiana late tonight into early Friday. The threat of severe weather is low and limited to the potential for some locally strong winds west of the Fox River Valley…. up to 50-60 mph.
Seasonable and dry conditions over the weekend with high temperatures in the mid-60s.
The threat of showers and thunderstorm return Monday, as does the threat of severe weather and heavy rainfall.
Weather Radarat 11:30 p.m. shows precipitation dissipating and moving west to east with the leading edge from about Rockford to Ottawa to Peoria.
See also Arlingtoncardinal.com/clouds
ARL HTS FORECAST …
Thursday Night: A chance of showers and thunderstorms most likely 3am to 5am, then showers likely but possibly another thunderstorm after 5am. Mostly cloudy, with a low around 63 at about 7am. South wind around 15 mph, with gusts as high as 25 mph possible until about 4am. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday: A chance of showers and thunderstorms before 11am until about 5pm. Mostly cloudy, with a high near 74 about 4pm. South wind 10 to 15 mph becoming west northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night: Partly cloudy, with a low around 47. Northwest wind 5 to 10 mph becoming north northeast after midnight. Winds could gust as high as 15 mph.
Saturday: Sunny, with a high near 63. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night: Partly cloudy, with a low around 45. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday: Partly sunny, with a high near 64.
Sunday Night: Mostly cloudy, with a low around 50.
Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 69. Breezy.
Monday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 52.
Tuesday: Partly sunny, with a high near 65.
Tuesday Night: Partly cloudy, with a low around 46.
Wednesday: Mostly sunny, with a high near 62.
Wednesday Night: Mostly cloudy, with a low around 43.
Thursday: Partly sunny, with a high near 59.
LAKE TEMPS …
Southern Lake Michigan Water Temperatures
National Weather Service Chicago/Romeoville IL
903 AM CDT Thu Apr 23 2026
Lake Michigan Water Temperatures…
Chicago Shore………..52.
Chicago Crib…………52.
Waukegan Buoy………..48.
Winthrop Harbor Buoy….45.
Michigan City………..47.
South Mid Lake Buoy…..38.
&&
M is for missing data that is normally available. Chicago Shore, Chicago Crib, and Michigan City are read every day of the year.
Measured at a depth of 60 ft for Chicago Crib and 30 ft for Michigan City. May not represent surface temperature.
april.chicagoweatherstation.com
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
^^ MOBILE? USE VOICE MIC ^^
facebook …
Please ‘LIKE’ the ‘Arlington Cardinal Page. See all of The Cardinal Facebook fan pages at Arlingtoncardinal.com/about/facebook …
Help fund The Cardinal Arlingtoncardinal.com/sponsor
