River stage
Johnsburg, Fox River
- River level
- 4.01 ft
- Status
- Below flood stage
- 7-day change
- -0.34 ft
- Recent high
- 4.92 ft
- Recent low
- 3.93 ft
Last reported 2026-10-13 | NWS JHNI2
- 30-day change
- -0.05 ft
- Average
- 4.16 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 8.90 ft
In brief
The Fox River at Johnsburg, IL read 4.01 ft on Oct 13, 2026, 1.99 ft below action stage. That is 0.05 ft lower than 30 days earlier.
Source: National Weather Service gauge JHNI2
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 8.90 ft | 1938-07-04 |
| 2 | 7.55 ft | 1960-04-06 |
| 3 | 7.47 ft | 2013-04-22 |
| 4 | 7.37 ft | 2017-07-17 |
| 5 | 7.10 ft | 1986-10-03 |
| 6 | 7.07 ft | 1979-04-02 |
| 7 | 6.65 ft | 1993-04-23 |
| 8 | 6.50 ft | 2008-06-18 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 4.50 ft
Fox Waterway Agency considers "no wake" order for the Fox River from Stratton Dam to Pistakee Lake.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Fox River flooding at Johnsburg?
No. The Fox River at Johnsburg is at 4.01 ft, 1.99 ft below action stage.
What is the flood stage at Johnsburg?
The National Weather Service sets action stage 6 ft, minor flooding 6.5 ft, moderate flooding 7 ft and major flooding 7.5 ft.
What is the highest the Fox River has been at Johnsburg?
The highest crest on record is 8.9 ft, on 1938-07-04.
Is the Fox River high or low right now at Johnsburg?
At 4.01 ft it is higher than 7% of readings over the last 122 days.
Stage and flood information from the NOAA National Weather Service (gauge JHNI2); daily history from the U.S. Geological Survey (site 05548500). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.