Lexington Weather

Lexington, Massachusetts, USA

49°F
4/30/2026 12:06pm 
  • Lexington Conditions: Light rain, Mist, Overcast
  • Temperature: 48.7°F / 9.3°CWarmer 0.5°F than last hour.
  • Dew Point: 47.3°FIncreased 0.5°Fsince last hour.
  • Relative Humidity: 95% 
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.69 in Steady
  • Visibility: 3 miles
  • Rain Today: 0.22 in
  •   

Flood Warning

Issued by the National Weather Service - St. Louis, MO

    FLOOD WARNING  

St. Clair County, IL

Flood Warning issued April 29 at 9:38PM CDT until May 3 at 5:00AM CDT by NWS St Louis MO

FLOOD WARNING NOW IN EFFECT FROM THURSDAY MORNING TO LATE SATURDAY NIGHT

Areas Affected: St. Clair, IL; St. Louis, MO; St. Louis City, MO

Urgency: Immediate

Severity: Severe

Certainty: Observed

Alert Sent: Wednesday 9:38pm CDT

Alert Effective: Wednesday 9:38pm CDT

Alert Expires: Friday 9:45am CDT (expect updated alert by this time)

Event Onset: Thursday 11:48am CDT

Event Ends: Sunday 5:00am CDT

Issued by: NWS St Louis MO

Details: 
...FLOOD WARNING NOW IN EFFECT FROM THURSDAY MORNING TO LATE SATURDAY NIGHT...

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

Mississippi River near Herculaneum.

Mississippi River at Mel Price LD.

Mississippi River at Chester.

Mississippi River at Grafton.

Mississippi River at Alton.

Mississippi River at St. Louis.

River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.

* WHAT...Minor flooding is forecast.

* WHERE...Mississippi River at St. Louis.

* WHEN...From Thursday morning to late Saturday night.

* IMPACTS...At 30.0 feet, Floodwall at Lacledes Landing is closed.
Also at this level, the U.S. Coast Guard may prohibit all
recreational vessel traffic from just above the Chain of Rocks
Canal south entry to just below the mouth of the Meramec River.

* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 28.4 feet and rising.
- Forecast...The river is expected to rise above flood stage late
tomorrow morning to a crest of 30.4 feet early Friday morning. It
will then fall below flood stage late Friday evening.
- Flood stage is 30.0 feet.

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

This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx

Meta data: 
ID: urn:oid:2.49.0.1.840.0.58d38bfdd32528dae75dc06ac74907be66ccb408.006.1
Codes: ILC163
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.58d38bfdd32528dae75dc06ac74907be66ccb408.006.1