TKHuman Westmont Weather

73°F

Westmont, Illinois, USA

Updated: 15-Sep-2026 11:50pm

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

Updated: 09/15/2026 9:11pm

Westmont, Illinois

	Wednesday Chance Showers And T-Storms	Thursday Chance Showers And T-Storms	Friday Chance Showers And T-Storms	Saturday Chance Showers And T-Storms then Showers And T-Storms Likely	Sunday Showers And T-Storms Likely	Monday Chance Rain Showers	Tuesday Partly Sunny
	Hi 75 °F	Hi 78 °F	Hi 77 °F	Hi 83 °F	Hi 77 °F	Hi 73 °F	Hi 74 °F

Tonight Chance Showers And T-Storms	Wednesday Night Chance Showers And T-Storms	Thursday Night Mostly Cloudy	Friday Night Chance Showers And T-Storms	Saturday Night Showers And T-Storms Likely	Sunday Night Chance Rain Showers	Monday Night Slight Chance Rain Showers then Mostly Cloudy
Lo 64 °F	Lo 66 °F	Lo 65 °F	Lo 65 °F	Lo 66 °F	Lo 61 °F	Lo 59 °F

Tonight	A chance of showers and thunderstorms. Cloudy. Low around 64, with temperatures rising to around 66 overnight. North northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Wednesday	A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly cloudy. High near 75, with temperatures falling to around 73 in the afternoon. Northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Wednesday Night	A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Northeast wind 0 to 5 mph, with gusts as high as 15 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday	A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 78. North wind 0 to 5 mph. Chance of precipitation is 40%.
Thursday Night	Mostly cloudy, with a low around 65. Northeast wind around 5 mph, with gusts as high as 10 mph.
Friday	A chance of showers and thunderstorms after 7am. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Friday Night	A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Saturday	A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 83.
Saturday Night	Showers and thunderstorms likely. Mostly cloudy, with a low around 66.
Sunday	Showers and thunderstorms likely. Mostly cloudy, with a high near 77.
Sunday Night	A chance of rain showers. Mostly cloudy, with a low around 61.
Monday	A chance of rain showers. Mostly cloudy, with a high near 73.
Monday Night	A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 59.
Tuesday	Partly sunny, with a high near 74.

Forecast from NOAA-NWS for Plainfield, IL.