| National Weather Service Forecast for:
Plainfield, IL Issued by: National Weather Service Chicago/Romeoville, IL |
||||||||||||||||||||||||||||||||||||||||
| Updated: 07/01/2026 1:51pm | ||||||||||||||||||||||||||||||||||||||||
| Westmont, Illinois | ||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||
Extreme Heat Warning issued July 1 at 9:56AM CDT until July 3 at 12:00AM CDT
| This Afternoon |
Sunny, with a high near 91. Heat index values as high as 101. South southwest wind around 15 mph, with gusts as high as 25 mph. |
| Tonight |
Mostly clear, with a low around 75. Heat index values as high as 99. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. |
| Thursday |
Sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 102. South southwest wind 5 to 15 mph. |
| Thursday Night |
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 74. Heat index values as high as 98. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. |
| Friday |
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. |
| Friday Night |
Showers and thunderstorms likely. Partly cloudy, with a low around 72. Chance of precipitation is 70%. |
| Independence Day |
Showers and thunderstorms likely. Partly sunny, with a high near 87. |
| Saturday Night |
Showers and thunderstorms likely before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69. |
| Sunday |
A chance of showers and thunderstorms. Partly sunny, with a high near 86. |
| Sunday Night |
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. |
| Monday |
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. |
| Monday Night |
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 66. |
| Tuesday |
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. |
| Tuesday Night |
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 68. |
Forecast from NOAA-NWS for Plainfield, IL.