| National Weather Service Forecast for:
Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL |
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| Updated: 08/13/2026 3:36am | ||||||||||||||||||||||||||||||||||||||||
| Westmont, Illinois | ||||||||||||||||||||||||||||||||||||||||
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Dense Fog Advisory issued August 13 at 2:42AM CDT until August 13 at 9:00AM CDT
Flood Watch issued August 13 at 2:08AM CDT until August 14 at 10:00AM CDT
| Today |
Widespread fog before 10am, then a chance of showers and thunderstorms between noon and 2pm, then showers and thunderstorms likely between 2pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 80, with temperatures falling to around 76 in the afternoon. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. |
| Tonight |
Showers and thunderstorms. Cloudy, with a low around 67. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible. |
| Friday |
Showers and thunderstorms likely before 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 80. East northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible. |
| Friday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 69. East wind 5 to 10 mph. Chance of precipitation is 60%. |
| Saturday |
Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 85. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. |
| Saturday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%. |
| Sunday |
A chance of showers and thunderstorms. Mostly cloudy, with a high near 84. |
| Sunday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 66. |
| Monday |
Mostly sunny, with a high near 79. |
| Monday Night |
Mostly clear, with a low around 61. |
| Tuesday |
Mostly sunny, with a high near 79. |
| Tuesday Night |
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 64. |
| Wednesday |
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 80. |
| Wednesday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. |
Forecast from NOAA-NWS for Plainfield, IL.