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Elev 774 ft, 42.27 °N, 88.2 °W

Island Lake, IL Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Island Lake, IL
Elevation: 774ft
Nearby Weather Stations

Active Weather Alerts

River Flood Warning
Issued: 3:19 PM Apr. 25, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Major flooding is occurring and is forecasted to fall to
moderate today.

* WHERE...Fox River from Johnsburg downstream to Red Gate Road in
St. Charles, including the Algonquin Lock & Dam tailwater gauge.

* WHEN...Until further notice.

* IMPACTS...At 12.0 feet, structures threatened along River Street,
Johnson Street, and Maiden Lane in East Dundee. North Harrison
Street threatened near Riverside Park in Algonquin. Washington
Street threatened in Carpentersville. Water Street, Edwards
Avenue, and Elgin Avenue threatened in East Dundee. Bayview Road
threatened in Elgin. Low-lying areas of Festival Park are
threatened in Elgin.

* ADDITIONAL DETAILS...
- At 9:30 AM CDT Saturday the stage was 12.0 feet.
- Forecast...The river has crested and will began to slowly
fall, but will remain above flood stage through at least next
week.
- Flood stage is 9.5 feet.
- http://www.weather.gov/safety/flood

&&



River Flood Warning
Issued: 3:10 PM Apr. 25, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.

* WHERE...Fox River Lower near New Munster.

* WHEN...Until further notice.

* IMPACTS...At 13.5 feet, Floodwaters are into the lower levels of
some homes in the Town of Wheatland and Village of Salem Lakes
areas along Riverside Drive and Shorewood Drive.

* ADDITIONAL DETAILS...
- At 9:00 AM CDT Saturday the stage was 13.3 feet.
- Bankfull stage is 10.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Saturday was 13.6 feet.
- Forecast...The river is expected to fall to 11.0 feet
Saturday, May 02.
- Flood stage is 11.0 feet.
- Flood History...This crest compares to a previous crest of
13.2 feet on 10/07/2018.
- 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 1 pm...
Location        stage stage     stage/time    Sun  Mon  Tue  Wed
New Munster     11.0  10.0  13.26 9 am 4/25   12.8 12.4 12.1 11.8

-                    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
New Munster     15.04 7 am 4/19        -0.32       13.20 1 pm 4/25


&&



River Flood Warning
Issued: 3:04 PM Apr. 25, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL TOMORROW AFTERNOON...

* WHAT...Minor flooding is occurring and is forecasted to continue.

* WHERE...Des Plaines River from US-41 in Gurnee downstream to
Townline Road in Vernon Hills, including the Gurnee gauge.

* WHEN...Until tomorrow afternoon.

* IMPACTS...At 7.0 feet, Forest land inundated near the river in
Gurnee.

* ADDITIONAL DETAILS...
- At 9:30 AM CDT Saturday the stage was 7.6 feet.
- Forecast...The river is expected to fall below flood stage
late tomorrow morning.
- Flood stage is 7.0 feet.
- http://www.weather.gov/safety/flood

&&



Small Craft Advisory
Issued: 1:36 PM Apr. 25, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...DENSE FOG ADVISORY WILL EXPIRE AT 9 AM CDT THIS MORNING...

* WHAT...North winds to 25 kt and significant waves to 6 ft
occasionally to 8 ft expected.

* WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL
to Michigan City IN.

* WHEN...Until 10 PM CDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

Flood Warning
Issued: 7:00 PM Apr. 24, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...A portion of northeast Illinois, including the following
counties, Lake IL and McHenry.

* WHEN...Until further notice.

* IMPACTS...Numerous roads, yards, structures, and areas of park
land are flooding along the Fox River Chain of Lakes. Flooding
will continue through at least next week.

* ADDITIONAL DETAILS...
- At 102 PM CDT, River gauges along the Fox River Chain of
Lakes indicate that water levels are now beginning to slowly
recede following a recent crest in major flood stage. The
latest forecast from the Illinois Department of Natural
Resources indicates that water levels should continue to
slowly recede into next week.
- Water levels are expected to remain above flood stage at
least through the middle of next week, assuming no additional
rainfall occurs.
- Some locations that will experience flooding include areas
along the Fox River Chain of Lakes, including Nippersink
Lake, Fox Lake, Pistakee Lake, Petite Lake, Lake Marie,
Channel Lake, and Lake Catherine.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&



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