| National Weather Service Forecast for:
Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: 07/22/2026 9:46pm | ||||||||||||||||||||||||||||||||||||||||
| Westmont, Illinois | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 54. South southwest wind 0 to 5 mph. |
| Thursday |
Sunny, with a high near 77. West southwest wind 0 to 5 mph. |
| Thursday Night |
Mostly cloudy, with a low around 58. South wind 0 to 5 mph. |
| Friday |
Mostly sunny, with a high near 79. South southeast wind 0 to 5 mph, with gusts as high as 15 mph. |
| Friday Night |
Partly cloudy, with a low around 60. South southwest wind around 5 mph, with gusts as high as 15 mph. |
| Saturday |
Partly sunny, with a high near 83. |
| Saturday Night |
Partly cloudy, with a low around 69. |
| Sunday |
Mostly sunny, with a high near 90. |
| Sunday Night |
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. |
| Monday |
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 90. |
| Monday Night |
A slight chance of rain showers between 7pm and 1am. Partly cloudy, with a low around 69. |
| Tuesday |
Mostly sunny, with a high near 87. |
| Tuesday Night |
Partly cloudy, with a low around 66. |
| Wednesday |
Mostly sunny, with a high near 85. |
Forecast from NOAA-NWS for Plainfield, IL.