| NWS Forecast for: 4 Miles SE Grantsburg IL Issued by: National Weather Service Paducah, KY Last Update: 12:51 pm CDT Sep 4, 2026 | |
This Afternoon: A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind. Tonight: Mostly clear, with a low around 75. Calm wind. Saturday: Sunny and hot, with a high near 100. Heat index values as high as 109. Light and variable wind. Saturday Night: Mostly clear, with a low around 73. Calm wind. Sunday: Sunny, with a high near 94. North northeast wind 3 to 7 mph. Sunday Night: Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening. Labor Day: Sunny, with a high near 91. East northeast wind 3 to 5 mph. Monday Night: Clear, with a low around 66. Calm wind. Tuesday: Sunny, with a high near 95. Calm wind becoming south around 5 mph in the morning. Tuesday Night: Clear, with a low around 72. Calm wind becoming south around 5 mph after midnight. Wednesday: Sunny and hot, with a high near 97. South southwest wind 5 to 8 mph. Wednesday Night: Mostly clear, with a low around 73. Light south southwest wind. Thursday: A slight chance of showers and thunderstorms. Sunny, with a high near 94. Light and variable wind becoming west around 6 mph in the morning. | |
| 4 Miles SE Grantsburg IL 37.35°N 88.72°W | |
Visit your local NWS office at: https://www.weather.gov/pah |





