| National Weather Service Forecast for:
Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: 10/19/2026 1:46am | ||||||||||||||||||||||||||||||||||||||||
| Westmont, Illinois | ||||||||||||||||||||||||||||||||||||||||
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| Today |
Sunny. High near 67, with temperatures falling to around 64 in the afternoon. South wind 0 to 5 mph. |
| Tonight |
Partly cloudy. Low around 44, with temperatures rising to around 46 overnight. East northeast wind 0 to 5 mph. |
| Tuesday |
Sunny. High near 70, with temperatures falling to around 67 in the afternoon. East northeast wind 0 to 5 mph. |
| Tuesday Night |
Mostly clear, with a low around 45. East wind 0 to 5 mph. |
| Wednesday |
Sunny, with a high near 71. South wind around 0 mph. |
| Wednesday Night |
Mostly clear, with a low around 48. |
| Thursday |
Sunny, with a high near 72. |
| Thursday Night |
Mostly clear, with a low around 49. |
| Friday |
Sunny, with a high near 71. |
| Friday Night |
Partly cloudy, with a low around 50. |
| Saturday |
Mostly sunny, with a high near 72. |
| Saturday Night |
Mostly cloudy, with a low around 53. |
| Sunday |
Partly sunny, with a high near 72. |
| Sunday Night |
Partly cloudy, with a low around 50. |
Forecast from NOAA-NWS for Plainfield, IL.