Winter Weather Advisory
2026-03-07T00:00:00-07:00

* WHAT...Snow and blowing snow expected. Total snow accumulations between 5 and 8 inches, with the heaviest snow south of Castle Rock. Winds gusting as high as 35 mph. * WHERE...Castle Rock. * WHEN...From 6 AM this morning to midnight MST tonight. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the Friday morning and evening commutes.


Sangamon River River Levels

Last Updated: March 6, 2026

The Sangamon River is a 246-mile-long tributary of the Illinois River.


Summary

Total streamflow across the Sangamon River was last observed at 2,758 cfs, and is expected to yield approximately 5,471 acre-ft of water today; about 26% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 10,723 cfs, with recent peaks last observed on 2016-01-01 when daily discharge volume was observed at 192,837 cfs.

Maximum discharge along the river is currently at the Sangamon River Near Oakford reporting a streamflow rate of 1,570 cfs. However, the streamgauge with the highest stage along the river is the Sangamon River At Petersburg with a gauge stage of 6.43 ft. This river is monitored from 6 different streamgauging stations along the Sangamon River, the highest being situated at an altitude of 693 ft, the Sangamon River At Fisher.




15-Day Weather Outlook


River Details

Last Updated 2026-03-05
Discharge Volume 5,471 ACRE-FT
Streamflow 2,758.16 cfs
+1749.48 cfs (+173.44%)
Percent of Normal 25.72%
Maximum 192,837.0 cfs
2016-01-01
Seasonal Avg 10,723 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Sangamon River At Fisher
USGS 05570910
7 cfs 4.83 ft 176.22
Sangamon River At Monticello
USGS 05572000
35 cfs 4.43 ft -36.99
Sangamon River At Rt 48 At Decatur
USGS 05573540
20 cfs 2.27 ft -37.65
Sangamon River At Riverton
USGS 05576500
1200 cfs 6.36 ft 347.06
Sangamon River At Petersburg
USGS 05578000
1400 cfs 6.43 ft 464.36
Sangamon River Near Oakford
USGS 05583000
1570 cfs 4.78 ft 51.8
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Sangamon River is a principal tributary of the Illinois River, approximately 246 miles (396 km) long, in central Illinois in the United States. It drains a mostly rural agricultural area between Peoria and Springfield. The river is associated with the early career of Abraham Lincoln and played an important role in the early white settlement of Illinois, when the area around was known as the "Sangamon River Country". The section of the Sangamon River that flows through Robert Allerton Park near Monticello was named a National Natural Landmark in 1971.