| National Weather Service Forecast for:
Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: 07/16/2026 8:46pm | ||||||||||||||||||||||||||||||||||||||||
| 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
| Tonight |
Smoke. Mostly cloudy, with a low around 71. East wind 0 to 5 mph. |
| Friday |
Smoke before 11am, then patchy smoke and scattered showers and thunderstorms. Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. Heat index values as high as 96. 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 |
Scattered showers and thunderstorms before 10pm. Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
Showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 89. Heat index values as high as 99. 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. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. 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. |
| Thursday |
Sunny, with a high near 81. |
Forecast from NOAA-NWS for Plainfield, IL.