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Elev 702 ft, 42.21 °N, 87.88 °W

Lake Forest, IL Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Lake Forest, IL
Elevation: 702ft
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Active Weather Alerts

Tornado Watch
Issued: 3:48 AM Apr. 15, 2026 – National Weather Service
TORNADO WATCH 109 REMAINS VALID UNTIL MIDNIGHT CDT TONIGHT FOR
THE FOLLOWING AREAS

IN ILLINOIS THIS WATCH INCLUDES 3 COUNTIES

IN NORTHEAST ILLINOIS

COOK                  DUPAGE                LAKE IL

THIS INCLUDES THE CITIES OF BUFFALO GROVE, CAROL STREAM, CHICAGO,
DOWNERS GROVE, EVANSTON, GURNEE, LEMONT, LOMBARD, MUNDELEIN,
NAPERVILLE, OAK LAWN, ORLAND PARK, PARK FOREST, SCHAUMBURG,
WAUKEGAN, AND WHEATON.

Tornado Watch
Issued: 3:48 AM Apr. 15, 2026 – National Weather Service
TORNADO WATCH 109 REMAINS VALID UNTIL MIDNIGHT CDT TONIGHT FOR
THE FOLLOWING AREAS

THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS

WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
CALUMET HARBOR IL TO GARY IN
GARY TO BURNS HARBOR IN
BURNS HARBOR TO MICHIGAN CITY IN
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5NM
OFFSHORE TO MID LAKE
LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5NM
OFFSHORE TO MID LAKE

River Flood Watch
Issued: 3:33 AM Apr. 15, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT FROM WEDNESDAY MORNING UNTIL FURTHER
NOTICE...

* WHAT...Flooding is possible.

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

* WHEN...From Wednesday morning until further notice.

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

* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 6.0 feet.
- Forecast...Rainfall will cause the river to rise and flood
stage may be reached on Wednesday.
- Flood stage is 7.0 feet.
- http://www.weather.gov/safety/flood

&&


River Flood Watch
Issued: 3:13 AM Apr. 15, 2026 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Flooding is possible.

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

* WHEN...Until further notice.

* IMPACTS...At 12.0 feet, Water is up to the first floor levels of
some homes in the Town of Wheatland and Village of Salem Lakes
area along Riverside Drive and Shorewood Drive.

* ADDITIONAL DETAILS...
- At 9:00 PM CDT Tuesday the stage was 10.0 feet.
- Forecast...Flood stage may be reached late tomorrow 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 1 am...
Location        stage stage     stage/time    Thu  Fri  Sat  Sun
New Munster     11.0  10.0  9.99  9 pm 4/14   11.2 12.0 12.2 12.0

-                    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     11.62 9 pm 4/07         0.14       12.20 1 am 4/18


&&


River Flood Warning
Issued: 2:26 AM Apr. 15, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is forecast.

* 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 9.5 feet, Fox River Drive threatened in East Dundee.
Boathouses threatened along the river in Cary.

* ADDITIONAL DETAILS...
- At 8:30 PM CDT Tuesday the stage was 9.4 feet.
- Forecast...Due to rainfall tonight and Wednesday, the river
is expected to rise above flood stage late tonight and remain
in flood for several days.
- Flood stage is 9.5 feet.
- http://www.weather.gov/safety/flood

&&



Flood Watch
Issued: 12:11 AM Apr. 15, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT UNTIL 6 AM CDT WEDNESDAY...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of Illinois, including the following areas,
Boone, Central Cook, De Kalb, DuPage, Eastern Will, Kane, Kendall,
Lake IL, McHenry, Northern Cook, Northern Will, Ogle, Southern
Cook, Southern Will and Winnebago and northwest Indiana, including
the following area, Lake IN.

* WHEN...Until 6 AM CDT Wednesday.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas. Roads and streets may
be flooded.

* ADDITIONAL DETAILS...
- An area of thunderstorms with rain rates up to one to two
inches per hour is expected to move through the area this
evening through the overnight hours. Elevated soil moisture
due to recent rainfall is expected to increase the
susceptibility to flash flooding.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch for flash flooding means rapid-onset flooding is
possible, but not yet certain, based upon the latest forecasts.
Flash flooding is a dangerous situation. Persons with interests
along area rivers, creeks, and other waterways should monitor the
latest forecasts and be prepared to take action should flooding
develop.

&&

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