Lexington Weather

Lexington, Massachusetts, USA

48°F
4/30/2026 10:15am 
  • Lexington Conditions: Light rain, Mist, Overcast
  • Temperature: 47.8°F / 8.8°CWarmer 0.7°F than last hour.
  • Dew Point: 46.4°FIncreased 0.7°Fsince last hour.
  • Relative Humidity: 95% 
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.70 inFalling 0.02 inHg/hr Falling Slowly
  • Visibility: 2 miles
  • Rain Today: 0.10 in
  •   

Flood Warning

Issued by the National Weather Service - Milwaukee/Sullivan, WI

    FLOOD WARNING  

Jefferson County, WI

Flood Warning issued April 30 at 5:10AM CDT until May 1 at 1:00AM CDT by NWS Milwaukee/Sullivan WI

FLOOD WARNING REMAINS IN EFFECT UNTIL JUST AFTER MIDNIGHT TONIGHT

Areas Affected: Jefferson, WI

Urgency: Immediate

Severity: Severe

Certainty: Observed

Alert Sent: Thursday 5:10am CDT

Alert Effective: Thursday 5:10am CDT

Alert Expires: Thursday 5:15pm CDT (expect updated alert by this time)

Event Onset: Thursday 5:10am CDT

Event Ends: Friday 1:00am CDT

Issued by: NWS Milwaukee/Sullivan WI

Details: 
...FLOOD WARNING REMAINS IN EFFECT UNTIL JUST AFTER MIDNIGHT TONIGHT...

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

Rock River At Newville affecting Rock County.

Rock River Near Lake Koshkonong affecting Jefferson and Rock
Counties.

Rock River At Fort Atkinson affecting Jefferson County.

Rock River At Afton affecting Winnebago and Rock Counties.

Rock River At Jefferson affecting Jefferson County.

ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County.

Fox River Lower Near New Munster affecting Lake and Kenosha
Counties.

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

* WHERE...Rock River at Jefferson.

* WHEN...Until just after midnight tonight.

* IMPACTS...At 10.0 feet, Water affects low lying areas of
residential property in the City of Jefferson. Rock River Park and
boat launch is affected near Hwy B in Johnson Creek.

* ADDITIONAL DETAILS...
- At 4:00 AM CDT Thursday the stage was 10.3 feet.
- Bankfull stage is 8.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 4:00 AM CDT Thursday was 10.4 feet.
- Forecast...The river is expected to fall below flood stage
this evening and continue falling to 7.6 feet Wednesday
evening.
- Flood stage is 10.0 feet.
- Flood History...This crest compares to a previous crest of
10.3 feet on 04/05/2007.
- http://www.weather.gov/safety/flood

Information: 
Caution is urged when walking near riverbanks.

Motorists should not attempt to drive around barricades or drive
cars through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued this afternoon at 515 PM CDT.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.a90a3b0738ba9377e1de63ae2cc952746d5789b3.005.1
Codes: WIC055
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a90a3b0738ba9377e1de63ae2cc952746d5789b3.005.1