CHICAGOLAND DETAILS …
Turning warmer and windy Tuesday afternoon with scattered showers this afternoon, with an isolated strong storm possible early Tuesday evening.
Cooler and breezy conditions are expected on Wednesday before a longer-lasting warm up arrives to close the week.
The May 16 through 19 timeframe may feature several rounds of showers and storms in the general region.
Regional radar imagery depicts a southwest to northeast oriented band of showers and embedded thunderstorms extending from central Iowa into southern Wisconsin, and gradually sinking south into northern Illinois.
See also: LIVE STREAMS: Arlingtoncardinal.com/StormChasers
O’HARE FORECAST …
Tuesday Afternoon: Scattered showers and thunderstorms after 4pm. Mostly cloudy, with a high near 79 about 3pm. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 45 mph peaking at about 4pm. Chance of precipitation is 30%.
Tuesday Night: Scattered showers and thunderstorms, mainly before 10pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 51 about 7am Wednesday morning. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Wednesday: Increasing clouds, with a high near 62. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night: Mostly cloudy during the early evening, then becoming clear, with a low around 43. North wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.
Thursday: Sunny, with a high near 66. Calm wind becoming east northeast around 5 mph in the morning. Winds could gust as high as 10 mph.
Thursday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 50.
Friday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 78.
Friday Night: Partly cloudy, with a low around 58.
RADAR • Clouds • Temps • NWS Chicago
PHOENIX FORECAST …
EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST TUESDAY EVENING
Air Quality Alert … OZONE HIGH POLLUTION ADVISORY FOR MARICOPA COUNTY INCLUDING THE PHOENIX METRO AREA THROUGH TUESDAY…
Tuesday: Sunny, with a high near 106. Calm wind becoming south southwest around 5 mph.
Tuesday Night: Mostly clear, with a low around 75. West southwest wind 5 to 10 mph becoming light and variable after midnight.
Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 101. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Wednesday Night: Clear, with a low around 71. West southwest wind around 5 mph becoming calm in the evening.
Thursday: Sunny, with a high near 99. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night: Clear, with a low around 72. West wind around 5 mph becoming calm.
Friday: Sunny, with a high near 100. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night: Clear, with a low around 72. West southwest wind around 5 mph becoming calm after midnight.
RADAR • Clouds • Temps • NWS Phoenix
MIAMI FORECAST …
Tuesday Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 88. South wind around 9 mph.
Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 77. South wind around 5 mph becoming light and variable in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. Southwest wind 3 to 7 mph.
Wednesday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 76. West wind around 6 mph. Chance of precipitation is 30%.
Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. West wind around 6 mph. Chance of precipitation is 30%.
Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75. Southwest wind around 6 mph becoming west after midnight.
Friday: Sunny, with a high near 88. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Friday Night: Mostly clear, with a low around 78. Southeast wind 5 to 7 mph becoming calm in the evening.
RADAR • Clouds • Temps • NWS Miami
LAX FORECAST …
Tuesday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 67. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night: Cloudy, with a low around 58. Southwest wind 5 to 10 mph becoming light.
Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 66. Light and variable wind becoming southwest 10 to 15 mph in the morning.
Wednesday Night: Patchy fog after 11pm. Otherwise, cloudy, with a low around 57. West southwest wind 10 to 15 mph becoming south southwest 5 to 10 mph after midnight.
Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 66. East southeast wind 5 to 15 mph becoming southwest in the afternoon.
Thursday Night: Partly cloudy, with a low around 58.
Friday: Mostly sunny, with a high near 70.
Friday Night: Mostly clear, with a low around 57.
RADAR • Clouds • Temps • NWS Los Angeles
WASH DC FORECAST …
Tuesday Afternoon: Sunny, with a high near 72. Southwest wind 3 to 6 mph.
Tuesday Night: Partly cloudy, with a low around 55. South wind 6 to 9 mph, with gusts as high as 20 mph.
Wednesday: A chance of showers between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 76. South wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Wednesday Night: A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Low around 53. South wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday: A chance of showers before 8am. Mostly sunny, with a high near 66. Northwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday Night: Partly cloudy, with a low around 50.
Friday: Mostly sunny, with a high near 74.
Friday Night: Partly cloudy, with a low around 55.
RADAR • Clouds • Temps • NWS Baltimore/Washington
O’Hare Weather Forecast Compared to Phoenix, Miami, LA, Washington DC TUE MAY 12, 2026 11:59 PM
