Chicagoland weather radar [LIVE PRECIPITATION INDICATOR RADAR] is all clear in Illinois, Wisconsin and Iowa at about 2:40 p.m. Tuesday.
Satellite images UNISYS Midwest IR SAT show thick clouds over southeast Minnesota, most of Wisconsin and northern Iowa at about 2:40 p.m.
Storm are expected to initiate by about 5:00 p.m. in southern Iowa, and head toward northern Illinois. Severe storms are possible after 5:00 p.m. with very large hail, strong damaging winds, and an elevated risk of a tornado. The greatest severe weather potential is between 7:00 p.m. and midnight.
About 1.0 inch of rain is forecast for tonight. Training of supercells is possible tonight, which would bring a series of thunderstorm cells with rain in excess of 1.5 inches.
NWS Office Chicago: Severe Thunderstorm Potential – May 20th.
Sunrise: 5:25 AM Sunset: 8:10 PM
THIS AFTERNOON A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 83 until about 5:00 p.m. Southwest wind around 10 mph, with gusts as high as 15 mph diminishing about 4:00 p.m.
Tonight Showers and thunderstorms likely, mainly before 1am. Some of the storms could be severe. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 60 at about 6:00 a.m. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night Mostly clear, with a low around 53. North northwest wind around 10 mph.
Thursday Sunny, with a high near 69. North northwest wind around 10 mph.
Thursday Night Mostly clear, with a low around 49.
Friday Sunny, with a high near 68.
Friday Night Mostly clear, with a low around 48.
Saturday Sunny, with a high near 72.
Saturday Night Mostly clear, with a low around 52.
Sunday Mostly sunny, with a high near 77.
Sunday Night Partly cloudy, with a low around 58.
Memorial Day A chance of showers and thunderstorms. Partly sunny, with a high near 81.
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
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Midwest Cloud Cover with Arlington Heights Weather Forecast
ChicagoWeatherStation.com I O’Hare Normal Temps/Precip I O’Hare Record Temps, Precip, Snow
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