| National Weather Service Forecast for:
Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: 07/13/2026 8:11pm | ||||||||||||||||||||||||||||||||||||||||
| Westmont, Illinois | ||||||||||||||||||||||||||||||||||||||||
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Air Quality Alert issued July 13 at 11:44AM CDT
| Tonight |
Mostly clear, with a low around 70. West wind 0 to 5 mph. |
| Tuesday |
Sunny, with a high near 93. Heat index values as high as 99. West northwest wind 0 to 5 mph. |
| Tuesday Night |
Mostly clear, with a low around 72. Heat index values as high as 98. West wind around 5 mph, with gusts as high as 15 mph. |
| Wednesday |
Sunny, with a high near 94. Heat index values as high as 101. West wind around 5 mph. |
| Wednesday Night |
Mostly clear, with a low around 72. West northwest wind 0 to 5 mph. |
| Thursday |
Sunny, with a high near 92. |
| Thursday Night |
Mostly clear, with a low around 72. |
| Friday |
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Sunny, with a high near 92. |
| Friday Night |
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms. Mostly clear, with a low around 73. |
| Saturday |
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. |
| Saturday Night |
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. |
| Sunday |
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Sunny, with a high near 86. |
| Sunday Night |
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 64. |
| Monday |
A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 84. |
Forecast from NOAA-NWS for Plainfield, IL.