Lower Fox HUC8 07120007
A 2,857 km² sub-basin of the Upper Mississippi region in IL. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
81
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 9 reporting
Median flow
166%
p75 of record
Water assets
1,734
0 springs · 943 wells
USGS gauges (9)
- MILL CREEK NEAR BATAVIA, IL055513304 cfsp37 · normal
- FERSON CREEK NEAR ST. CHARLES, IL0555120013 cfsp58 · normal
- FOX RIVER AT MONTGOMERY, IL05551540803 cfsp63 · normal
- WAUBONSEE CREEK NEAR OSWEGO, IL055515458 cfsp74 · normal
- FOX RIVER AT YORKVILLE, IL05551580923 cfsp75 · above normal
- BLACKBERRY CREEK NEAR MONTGOMERY, IL0555167520 cfsp75 · above normal
- FOX RIVER AT SOUTH ELGIN, IL05551000817 cfsp76 · above normal
- BLACKBERRY CREEK NEAR YORKVILLE, IL0555170032 cfsp80 · above normal
- FOX RIVER AT DAYTON, IL055525001,110 cfsp81 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 0/9 | p75 |
Top water assets
- 77Cambrian-Ordovician Fossil Aquifer — Northern Illinoisfossil_water
- 66Holiday Lake Damreservoir
- 65Fox River At Montgomery, Ilriver
- 65North Aurora Towne Centre Basin B Damreservoir
- 65Blackberry Creek Near Montgomery, Ilriver
- 65Settlers Ridge Pond 1 Damreservoir
- 65Mill Creek Near Batavia, Ilriver
- 65Fox River At Yorkville, Ilriver
- 65Fox River At Dayton, Ilriver
- 65Waubonsee Creek Near Oswego, Ilriver