River stage
Montgomery, Fox River
- River level
- 11.63 ft
- Status
- Below flood stage
- 7-day change
- -0.75 ft
- Recent high
- 12.84 ft
- Recent low
- 11.03 ft
Last reported 2026-10-13 | NWS MNGI2
- 30-day change
- +0.37 ft
- Average
- 11.79 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 16.50 ft
In brief
The Fox River at Montgomery, IL read 11.63 ft on Oct 13, 2026, 1.37 ft below action stage. That is 0.37 ft higher than 30 days earlier.
Source: National Weather Service gauge MNGI2
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 16.50 ft | 1996-07-18 |
| 2 | 15.14 ft | 2013-04-18 |
| 3 | 15.12 ft | 2008-09-14 |
| 4 | 14.77 ft | 2007-08-24 |
| 5 | 14.66 ft | 2020-05-18 |
| 6 | 14.46 ft | 2020-05-15 |
| 7 | 14.37 ft | 2015-06-15 |
| 8 | 14.21 ft | 2017-07-23 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 13.00 ft
Water overtops low-lying banks near Montgomery, St. Charles, and Clark Island Park in Batavia.
- 13.50 ft
Low-lying parking lots at city hall and Boy Scout Island are threatened in St. Charles. Fox River Trail is threatened at St. Mary Park in St. Charles.
- 14.00 ft
Low-lying park land inundated along IL-25 between Montomgery and Oswego. Low-lying sections of Fabyan Forest Preserve near Batavia, Hurds Island and Gregory Island Park in Aurora, and Riverfront Park in North Aurora are inundated.
- 14.50 ft
Athletic fields threatened at Clark Island Park in Batavia.
- 15.00 ft
Residences are threatened along River Street near Ashland Avenue in Montgomery. Veterans Memorial threatened at Illinois Avenue in Aurora. Low-lying sections of Hudson Crossing Park are inundated in Oswego.
- 15.50 ft
A couple structures threatened in downtown Batavia. IL-25 (East River Road) is threatened near Boulder Hill Pass. Numerous sections of Fox River Trail are threatened in Oswego. Low-lying trails threatened at Lippold Park between Batavia and North Aurora. Athletic fields at South River Street Park are inundated in Aurora.
- 16.00 ft
IL-25 (East River Road) is threatened near 1st Avenue in Montgomery. Harrison Street is threatened in Oswego. Flinn Street and Shumway Avenue threatened in Batavia.
- 16.50 ft
Fox Metro Wastewater Reclamation facility property is threatened south of Montomgery.
- 17.00 ft
Batavia wastewater treatment plant property is threatened.
- 17.50 ft
Mooseheart wastewater treatment plant property is threatened. A few structures threatened along River Street near South River Street Park in Aurora. River Street is threatened at South River Street Park and near Ashland Avenue in Aurora.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Fox River flooding at Montgomery?
No. The Fox River at Montgomery is at 11.63 ft, 1.37 ft below action stage.
What is the flood stage at Montgomery?
The National Weather Service sets action stage 13 ft, minor flooding 13.5 ft, moderate flooding 15 ft and major flooding 16 ft.
What is the highest the Fox River has been at Montgomery?
The highest crest on record is 16.5 ft, on 1996-07-18.
Is the Fox River high or low right now at Montgomery?
At 11.63 ft it is higher than 42% of readings over the last 122 days.
Stage and flood information from the NOAA National Weather Service (gauge MNGI2); daily history from the U.S. Geological Survey (site 05551540). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.