CHICAGOLAND DETAILS …
Radar is clear in northern Illinois.
Hot conditions will continue through the week with high temperatures generally in the upper 80s to 90s and overnight lows in the 70s.
A period of reduced visibility due to smoke may occur on Thursday generally along and northeast of Interstate 90.
A few storms appear possible on Thursday, with increasing storm chances Friday and then again late Saturday afternoon into Saturday evening.
See also: LIVE STREAMS: Arlingtoncardinal.com/StormChasers
Temperature Outlook …
R 75 96 | F 74 91 | SA 74 91 | SU 70 86
O’HARE FORECAST …
AIR QUALITY ALERT EXTENDED THROUGH WEDNESDAY NIGHT JULY 15 2026 UNTIL MIDNIGHT (12:00 AM THURSDAY) …
Issued 1123 AM CDT Tue Jul 14 2026
The Illinois Environmental Protection Agency has determined that the Air Pollution Action Day will remain in effect for the greater Chicago Metropolitan Area until midnight Wednesday Night.
A Chicago Area Air Pollution Action Day is declared when weather conditions are such that widespread ozone and or particulate levels are expected to be at or above the Unhealthy for Sensitive Groups category of the Air Quality Index for multiple days. Ozone is expected to be the primary pollutant of concern although smoke/PM2.5 may also become a concern later in the work week.
Active children and adults, especially people with pulmonary or respiratory disease such as asthma, should limit prolonged outdoor activity.
Area residents are urged to reduce pollution levels. Air quality forecasts, current air quality, and tips on how you can reduce your emissions can be found at www.airnow.gov.
Wednesday: Sunny and hot, with a high near 97. Heat index values as high as 102. West wind around 5 mph becoming north northeast in the afternoon.
Wednesday Night: Patchy smoke after midnight. Partly cloudy, with a low around 75. East northeast wind around 5 mph becoming calm in the evening.
Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Widespread smoke, mainly before 11am. Mostly sunny, with a high near 93. Heat index values as high as 96. Calm wind becoming east around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Thursday Night: A 20 percent chance of showers before 1am. Areas of smoke before 8pm. Partly cloudy, with a low around 74. East northeast wind around 5 mph becoming calm after midnight.
Friday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the morning. Winds could gust as high as 10 mph. Chance of precipitation is 70%.
Friday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 74. Chance of precipitation is 20%.
Saturday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Saturday Night: Partly cloudy, with a low around 70.
Sunday: Sunny, with a high near 86.
Sunday Night: Partly cloudy, with a low around 70.
Monday: A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
RADAR • Clouds • Temps • NWS CHGO • UV
PHOENIX FORECAST …
Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 107. Heat index values as high as 111. East wind 5 to 10 mph becoming west in the afternoon.
Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 87. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 102. Southeast wind around 5 mph becoming west southwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 82. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 96. East wind around 5 mph becoming west southwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 80. West southwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday: A 30 percent chance of showers and thunderstorms, mainly before 11am. Mostly sunny, with a high near 98. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 11pm. Partly cloudy, with a low around 82. West wind around 5 mph becoming calm.
Sunday: A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 100. West wind around 5 mph. Chance of precipitation is 30%.
Sunday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. West wind around 5 mph becoming calm.
Monday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 100. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. West wind around 5 mph becoming calm.
RADAR • Clouds • Temps • NWS Phoenix • UV
MIAMI FORECAST …
Heat Advisory in effect from July 15, 11:00 AM EDT until July 15, 07:00 PM EDT
Wednesday: Mostly sunny, with a high near 93. Heat index values as high as 105. Southeast wind 3 to 8 mph.
Wednesday Night: Mostly cloudy, with a low around 81. Southeast wind around 5 mph becoming calm in the evening.
Thursday: Mostly sunny, with a high near 94. Heat index values as high as 105. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Thursday Night: Increasing clouds, with a low around 81. South wind 3 to 6 mph.
Friday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Calm wind becoming southeast 5 to 9 mph in the afternoon.
Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 81. South wind 3 to 7 mph.
Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 80. South wind 5 to 7 mph.
Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Light south wind increasing to 5 to 10 mph in the morning.
Sunday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 80.
Monday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80.
RADAR • Clouds • Temps • NWS Miami • UV
LAX FORECAST …
Beach Hazards Statement until July 16, 03:00 AM PDT
Heat Advisory until July 16, 08:00 PM PDT
Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 84. South southeast wind 5 to 15 mph becoming west southwest in the morning.
Wednesday Night: Partly cloudy, with a low around 70. West southwest wind around 10 mph becoming east after midnight. Winds could gust as high as 15 mph.
Thursday: Sunny, with a high near 84. East wind around 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 70. South wind around 10 mph becoming east southeast after midnight. Winds could gust as high as 15 mph.
Friday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 77. East southeast wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Friday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 69.
Saturday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 76.
Saturday Night: Partly cloudy, with a low around 67.
Sunday: Mostly sunny, with a high near 75.
Sunday Night: Partly cloudy, with a low around 66.
Monday: Mostly sunny, with a high near 75.
Monday Night: Partly cloudy, with a low around 67.
RADAR • Clouds • Temps • NWS Los Angeles • UV
WASH DC FORECAST …
Heat Advisory in effect from July 15, 11:00 AM EDT until July 15, 08:00 PM EDT
Wednesday: Sunny and hot, with a high near 102. Heat index values as high as 105. West wind 3 to 8 mph.
Wednesday Night: Partly cloudy, with a low around 80. Southwest wind around 5 mph becoming calm in the evening.
Thursday: Mostly sunny and hot, with a high near 101. Heat index values as high as 106. Calm wind becoming west 5 to 8 mph in the afternoon.
Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 78. West wind around 5 mph becoming light and variable in the evening.
Friday: Mostly sunny, with a high near 96. Light north wind.
Friday Night: A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 40%.
Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 91. Chance of precipitation is 80%.
Saturday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 73. Chance of precipitation is 80%.
Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Sunday Night: A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Monday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Monday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 20%.
Baltimore/Washington DC Forecast
RADAR • Clouds • Temps • NWS Baltimore/Washington • UV
O’Hare Weather Forecast Compared to Phoenix, Miami, LA, Wash DC WED JUL 15, 2026 7:28 AM SOURCE: National Weather Service local offices.
