| National Weather Service Forecast for:
Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: 10/01/2026 8:51am | ||||||||||||||||||||||||||||||||||||||||
| Westmont, Illinois | ||||||||||||||||||||||||||||||||||||||||
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| Today |
Rain showers likely before 10am, then showers and thunderstorms. Cloudy. High near 72, with temperatures falling to around 68 in the afternoon. West southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible. |
| Tonight |
Showers and thunderstorms before 4am. Cloudy. Low around 54, with temperatures rising to around 56 overnight. North northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible. |
| Friday |
Mostly sunny. High near 66, with temperatures falling to around 63 in the afternoon. North wind around 10 mph, with gusts as high as 20 mph. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
Clear, with a low around 44. Northeast wind 0 to 5 mph, with gusts as high as 10 mph. |
| Saturday |
Sunny, with a high near 67. East wind 0 to 5 mph, with gusts as high as 15 mph. |
| Saturday Night |
Mostly clear, with a low around 46. |
| Sunday |
Sunny, with a high near 71. |
| Sunday Night |
Mostly clear, with a low around 46. |
| Monday |
Sunny, with a high near 65. |
| Monday Night |
Clear, with a low around 42. |
| Tuesday |
Sunny, with a high near 66. |
| Tuesday Night |
Mostly clear, with a low around 48. |
| Wednesday |
Mostly sunny, with a high near 72. |
| Wednesday Night |
Partly cloudy, with a low around 52. |
Forecast from NOAA-NWS for Plainfield, IL.