TKHuman Westmont Weather

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

Updated: 07/04/2026 3:26pm

- Select Forecast - Westmont, Illinois Cook County DuPage County

Westmont, Illinois

Independence Day Showers And T-Storms Sunday Partly Sunny then Isolated Showers And T-Storms Monday Sunny Tuesday Sunny Wednesday Sunny Thursday Chance Showers And T-Storms Friday Chance Showers And T-Storms   Hi 83 °F Hi 80 °F Hi 80 °F Hi 82 °F Hi 86 °F Hi 86 °F Hi 83 °F     Tonight Scattered Showers And T-Storms Sunday Night Partly Cloudy Monday Night Mostly Clear Tuesday Night Mostly Clear Wednesday Night Partly Cloudy then Chance Showers And T-Storms Thursday Night Showers And T-Storms Likely Friday Night Chance Showers And T-Storms   Lo 66 °F Lo 64 °F Lo 62 °F Lo 63 °F Lo 67 °F Lo 66 °F Lo 63 °F

Flash Flood Warning issued July 4 at 3:24PM CDT until July 4 at 8:15PM CDT
Flood Watch issued July 4 at 2:37PM CDT until July 4 at 10:00PM CDT
Severe Thunderstorm Watch issued July 4 at 12:33PM CDT until July 4 at 7:00PM CDT
Flood Watch issued July 4 at 9:39AM CDT until July 4 at 10:00PM CDT
 

Independence Day	Showers and thunderstorms. Some of the storms could be severe. Cloudy. High near 83, with temperatures falling to around 72 in the afternoon. North wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight	Scattered showers and thunderstorms before 8pm, then scattered showers and thunderstorms between 8pm and 10pm, then isolated showers and thunderstorms between 10pm and 3am. Some of the storms could be severe. Mostly cloudy, with a low around 66. Northeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Sunday	Isolated showers and thunderstorms between 1pm and 4pm. Partly sunny. High near 80, with temperatures falling to around 78 in the afternoon. North northeast wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night	Partly cloudy, with a low around 64. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday	Sunny, with a high near 80. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night	Mostly clear, with a low around 62.
Tuesday	Sunny, with a high near 82.
Tuesday Night	Mostly clear, with a low around 63.
Wednesday	Sunny, with a high near 86.
Wednesday Night	A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67.
Thursday	A chance of showers and thunderstorms before 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 86.
Thursday Night	Showers and thunderstorms likely. Mostly cloudy, with a low around 66.
Friday	A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 83.
Friday Night	A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.

 

Forecast from NOAA-NWS for Plainfield, IL.

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