TKHuman Westmont Weather

National Weather Service Forecast for: Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL

Updated: 08/16/2026 8:15am

- Select Forecast - Westmont, Illinois Cook County DuPage County

Westmont, Illinois

Today Patchy Fog then Slight Chance Showers And T-Storms Monday Mostly Sunny Tuesday Mostly Sunny then Slight Chance Showers And T-Storms Wednesday Showers And T-Storms Likely Thursday Mostly Sunny Friday Mostly Sunny then Slight Chance Showers And T-Storms Saturday Slight Chance Showers And T-Storms then Mostly Sunny   Hi 83 °F Hi 80 °F Hi 82 °F Hi 77 °F Hi 77 °F Hi 77 °F Hi 78 °F     Tonight Slight Chance Showers And T-Storms then Mostly Cloudy Monday Night Mostly Clear Tuesday Night Slight Chance Showers And T-Storms then Showers And T-Storms Likely Wednesday Night Slight Chance Showers And T-Storms then Partly Cloudy Thursday Night Partly Cloudy Friday Night Slight Chance Showers And T-Storms Saturday Night Partly Cloudy   Lo 67 °F Lo 63 °F Lo 66 °F Lo 59 °F Lo 59 °F Lo 62 °F Lo 61 °F

 

Today	Patchy fog before 10am, then a slight chance of rain showers between 3pm and 4pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 83. West northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Tonight	A slight chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 67. Northwest wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Monday	Mostly sunny, with a high near 80. North northeast wind 5 to 10 mph.
Monday Night	Mostly clear, with a low around 63. West wind 0 to 5 mph.
Tuesday	A slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday Night	A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Wednesday	Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 77.
Wednesday Night	A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 59.
Thursday	Mostly sunny, with a high near 77.
Thursday Night	Partly cloudy, with a low around 59.
Friday	A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77.
Friday Night	A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Saturday	A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 78.
Saturday Night	Partly cloudy, with a low around 61.

 

Forecast from NOAA-NWS for Plainfield, IL.

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