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Elev 755 ft, 43.32 °N, 87.95 °W

Grafton, WI Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Grafton, WI
Elevation: 755ft
Nearby Weather Stations

Active Weather Alerts

River Flood Warning
Issued: 10:02 AM Apr. 19, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL EARLY WEDNESDAY MORNING...

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

* WHERE...Milwaukee River near Cedarburg.

* WHEN...Until early Wednesday morning.

* IMPACTS...At 12.0 feet, Thiensville: Villa Grove Rd, Thiensville
Village Park, water into yards of homes. Klug Ln, River Rd and
Bonniwell Rd floods and water approaches some homes along N Island
Drive and N Shoreland Parkway in Mequon. The following roads may
flood: Mill St, Green Bay Ave, S Riverside Dr, Hwy Y and Hawthorne
Dr and Blueberry Dr and Hawthorne Dr in the Town of Saukville,
Highway W from Highway 33 and Highway 57 in the Village and Town
of Saukville.

* ADDITIONAL DETAILS...
- At 4:00 AM CDT Sunday the stage was 11.4 feet.
- Bankfull stage is 10.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 4:00 AM CDT Sunday was 11.6 feet.
- Forecast...The river will rise to 12.0 feet this afternoon.
It will then fall just after midnight tonight. It will rise
to 11.6 feet tomorrow evening. It will then fall below flood
stage Tuesday evening.
- Flood stage is 11.0 feet.
- http://www.weather.gov/safety/flood

&&

River forecasts are available for some but not all river gaging
locations. The 7 day river forecast takes into account past
precipitation, soil moisture conditions, and predicted
precipitation for the basin. Precipitation is for the next 24 hours
in the future from April through September and for 48 hours in the
future from October through March.

(Stages in ft.)       Bank-       Latest         Forecast stages
-               Flood full       observed        ...for 7 am...
Location        stage stage     stage/time    Mon  Tue  Wed  Thu
Cedarburg       11.0  10.0  11.38 4 am 4/19   11.6 11.3 10.7 9.7

-                    Highest       24 hour change
-                    observed      in river stage
-                    stage in        (ft.) up to     Highest stage
-                    the last      latest observed    forecast in
-                     7 days            stage         next 7 days
Cedarburg       11.56 1 pm 4/18         0.19       12.00 1 pm 4/19


&&



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