Please use and share the following link to allow the Office of Water Resources to better correlate gage reading through the system to community impacts.
The better the data that the office has, the better informed the decision-making process will be regarding water levels.
The Fox River Status Update for April 15, 2026 is available at https://dnr.illinois.gov/waterresources/strattonoperationsupdate.html
SUMMARY
This update is being released due to significant changes to the forecast. Inflows are forecasted to continue climbing to a peak of near 7800 cfs on Sunday (Figure 1). Fox Lake is forecasted to peak at ~6.75’ next Wednesday, the Upper River and Pool will be slightly lower (Figure 2). The Lower River is expected to rise to near 7.00’ on the Fox River (Tailwater) Near McHenry Gage as well (Figure 3). There is currently between 1.75” and 2.00” of rain forecasted for the watershed over the next 7 Days, (Figure 4).
Aaron Rotherham
Project Engineer
IDNR Office of Water Resources
(217)782-4615
