Illinois weather for September 17, 2026
The day's Local Storm Reports for Illinois on September 17, 2026 break down this way: 5 reports of rainfall, topping 4.25 inches at Somonauk.
Rainfall reports for the day
| Amount | Place | County | Reported by | Time |
|---|---|---|---|---|
| 4.25 inches | Somonauk | De Kalb | Trained Spotter | |
| 2.94 inches | 1 SE Cortland | De Kalb | Public | |
| 2.61 inches | 2 NNW Plainfield | Will | Public | |
| 1.90 inches | 3 SW Burbank | Cook | CO-OP Observer | |
| 1.79 inches | Galena | Jo Daviess | Trained Spotter |
Storms this day belongs to
- Rain totals for September 17, 2026 4.25 inches Somonauk, IL
Aurora verdict for Illinois
No Kp reading for the night of September 17 has reached the record for Illinois yet.
A single Local Storm Report from a spotter, covering snow, rain or hail, earns a state a day page. Reports come from the National Weather Service, and each day runs on US Eastern time so a single storm day covers the whole country at once.
National Weather Service offices file Local Storm Reports; the Iowa Environmental Mesonet of Iowa State University relays them to this page, where they appear as live spotter reports. The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.