| National Weather Service Forecast for:
Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: 07/16/2026 1:16pm | ||||||||||||||||||||||||||||||||||||||||
| Westmont, Illinois | ||||||||||||||||||||||||||||||||||||||||
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Air Quality Alert issued July 16 at 1:28PM CDT
Air Quality Alert issued July 16 at 12:02AM CDT
| This Afternoon |
Areas of smoke before 3pm, then areas of smoke and a slight chance of showers and thunderstorms. Partly sunny. High near 91, with temperatures falling to around 89 in the afternoon. Heat index values as high as 98. North wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Tonight |
Smoke and a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 72. East wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday |
Smoke before 11am, then patchy smoke and a slight chance of showers and thunderstorms between 11am and noon, then patchy smoke and a chance of showers and thunderstorms. Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. Heat index values as high as 95. South southwest wind 0 to 5 mph, with gusts as high as 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
A chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. |
| Saturday |
Showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 89. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. |
| Saturday Night |
Showers and thunderstorms likely before 7pm. Mostly clear, with a low around 66. Chance of precipitation is 70%. |
| Sunday |
Sunny, with a high near 83. |
| Sunday Night |
Mostly clear, with a low around 64. |
| Monday |
A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 86. |
| Monday Night |
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. |
| Tuesday |
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. |
| Tuesday Night |
A slight chance of rain showers before 7pm. Mostly clear, with a low around 62. |
| Wednesday |
Sunny, with a high near 79. |
| Wednesday Night |
Mostly clear, with a low around 60. |
Forecast from NOAA-NWS for Plainfield, IL.





