Lexington Weather

Lexington, Massachusetts, USA

48°F

4/30/2026 11:22am

Lexington Conditions: Light rain, Mist, Overcast
Temperature: 48.4°F / 9.1°C
Dew Point: 46.9°F
Relative Humidity: 95%
Wind: Calm, 10-min avg: Calm, gust: None
Barometer: 29.69 in Falling Slowly
Visibility: 5 miles
Rain Today: 0.16 in

Watches, Warnings, and Advisories

Issued by the National Weather Service - Chicago, IL

FLOOD WARNING

McHenry County, IL

Flood Warning issued April 30 at 9:32AM CDT until May 5 at 1:00AM CDT by NWS Chicago IL

FLOOD WARNING NOW IN EFFECT UNTIL EARLY TUESDAY MORNING

Areas Affected: Kane, IL; Lake, IL; McHenry, IL

Urgency: Immediate

Severity: Severe

Certainty: Observed

Alert Sent: Thursday 9:32am CDT

Alert Effective: Thursday 9:32am CDT

Alert Expires: Friday 3:45am CDT (expect updated alert by this time)

Event Onset: Thursday 9:32am CDT

Event Ends: Tuesday 1:00am CDT

Issued by: NWS Chicago IL

Details:

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY TUESDAY MORNING...

...The Flood Warning continues for the following rivers in
Illinois...

Fox River at Algonquin Lock & Dam tailwater affecting McHenry,
Kane and Lake IL Counties.

* WHAT...Moderate flooding is occurring and moderate 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 early Tuesday morning.

* IMPACTS...At 11.0 feet, Structures threatened near Elgin Avenue
and Corey Street south of East Dundee. Lincoln Avenue threatened
in West Dundee. Filip Street and Fox River Drive threatened in
Algonquin. Fox River Trail threatened south of downtown Elgin.

* ADDITIONAL DETAILS...
- At 8:30 AM CDT Thursday the stage was 11.1 feet.
- Forecast...The river is expected to continue a gradual slow
fall.
- Flood stage is 9.5 feet.
- http://www.weather.gov/safety/flood

Information:

A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.

These forecasts are based on observed precipitation as well as
forecast precipitation 24 hours into the future. Changes to the
rainfall forecast, or any additional rainfall after 24 hours, may
cause changes to these river forecasts.

Additional information is available at www.weather.gov.

The next statement will be issued by late tonight.

Meta data:

ID: urn:oid:2.49.0.1.840.0.daed534977b7ab8ed099c24bfd52027acf202a19.001.1
Codes: ILC089, ILC097, ILC111
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.daed534977b7ab8ed099c24bfd52027acf202a19.001.1

FLOOD WARNING

McHenry County, IL

Flood Warning issued April 29 at 4:36PM CDT until May 3 at 7:00AM CDT by NWS Chicago IL

FLOOD WARNING REMAINS IN EFFECT UNTIL SUNDAY

Areas Affected: Lake, IL; McHenry, IL

Urgency: Immediate

Severity: Severe

Certainty: Likely

Alert Sent: Wednesday 4:36pm CDT

Alert Effective: Wednesday 4:36pm CDT

Alert Expires: Sunday 7:00am CDT

Event Onset: Wednesday 4:36pm CDT

Event Ends: Sunday 7:00am CDT

Issued by: NWS Chicago IL

Details:

...FLOOD WARNING REMAINS IN EFFECT UNTIL SUNDAY...

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

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

* WHEN...Until Sunday.

* IMPACTS...Multiple roads, yards, and areas of park land are
flooding along the Fox River Chain of Lakes. Flooding is expected
to continue until this weekend.

* ADDITIONAL DETAILS...
- At 431 PM CDT, River gauges along the Fox River Chain of
Lakes indicated that water levels continue to slowly fall.
- The latest forecast from the Illinois Department of Natural
Resources indicates that water levels should fall to near
flood stage by this weekend.
- 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

Meta data:

ID: urn:oid:2.49.0.1.840.0.8c744158d624fcc48dd0bc9814c4f6904a027f65.001.1
Codes: ILC097, ILC111
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8c744158d624fcc48dd0bc9814c4f6904a027f65.001.1