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Elev 534 ft, 38.78 °N, 90.48 °W

St. Charles, MO Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: St. Charles, MO
Elevation: 534ft
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Active Weather Alerts

River Flood Warning
Issued: 4:16 PM Apr. 21, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Mississippi River at Grafton.

* WHEN...Until further notice.

* IMPACTS...At 21.0 feet, Water begins flooding the floor at the
Palisades Marina in Portage Des Sioux.  Access to homes along North
Shore Drive in eastern St. Charles County becomes cut off near this
height.

* ADDITIONAL DETAILS...
- At 10:30 AM CDT Tuesday the stage was 20.7 feet.
- Forecast...The river is expected to rise to a crest of 20.7 feet
this afternoon.
- Flood stage is 20.0 feet.



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All Times CDT    Fld   Observed  Forecasts (7:00 am)
Location         Stg     Stage   Wed   Thu   Fri   Sat   Sun

Mississippi River
Grafton         20.0    20.7    20.7  20.7  20.6  20.5  20.4



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