| National Weather Service Forecast for:
Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: 08/22/2026 12:06pm | ||||||||||||||||||||||||||||||||||||||||
| Westmont, Illinois | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Mostly sunny, with a high near 79. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. |
| Tonight |
Mostly clear, with a low around 58. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. |
| Sunday |
Sunny. High near 76, with temperatures falling to around 74 in the afternoon. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. |
| Sunday Night |
Mostly clear, with a low around 55. Northwest wind 0 to 5 mph, with gusts as high as 15 mph. |
| Monday |
Mostly sunny, with a high near 77. Northwest wind 0 to 5 mph. |
| Monday Night |
Partly cloudy, with a low around 58. |
| Tuesday |
Mostly sunny, with a high near 78. |
| Tuesday Night |
A slight chance of rain showers after 1am. Partly cloudy, with a low around 62. |
| Wednesday |
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 81. |
| Wednesday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 63. |
| Thursday |
Sunny, with a high near 80. |
| Thursday Night |
Mostly clear, with a low around 62. |
| Friday |
Mostly sunny, with a high near 81. |
| Friday Night |
A slight chance of rain showers after 1am. Partly cloudy, with a low around 63. |
Forecast from NOAA-NWS for Plainfield, IL.