Illinois Unknown Hydrologic Outlook | Effective 08/13/2026 09:09

ESFILX This hydrologic outlook includes the following river in Illinois: Illinois River... There is the possibility for multiple rounds of potentially heavy rain over the next couple of days. The following river information is based on future predicted rainfall over just the next 24 hours. The exact amount, intensity, timing, and location of the rain that will occur still has some uncertainty. These outlook stages are provided to show what may be expected if the forecast precipitation occurs. Once there is more certainty about the river forecasts, a flood warning will be issued if the threat materializes. Please stay tuned to the latest forecast information.