Lexington Weather

Lexington, Massachusetts, USA

20°F
12/15/2025 7:27pm 
  • Lexington Conditions: Clear
  • Temperature: 19.8°F / -6.8°CColder 0.3°F than last hour.
  • Dew Point: 8.4°FIncreased 0.3°Fsince last hour.
  • Relative Humidity: 61%Increased 2.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 1 mph
  • Barometer: 30.05 in Steady
  • Visibility: 10 miles
  • Snow Today: 0.0 in
  •   

Watches, Warnings, and Advisories

Issued by the National Weather Service - Honolulu, HI

    FLOOD WATCH  

Waianae Coast, HI

Flood Watch issued December 15 at 7:37AM HST until December 15 at 6:00PM HST by NWS Honolulu HI

Areas Affected: Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward

Urgency: Future

Severity: Severe

Certainty: Possible

Alert Sent: Monday 7:37am HST

Alert Effective: Monday 7:37am HST

Alert Expires: Monday 6:00pm HST

Event Onset: Monday 7:37am HST

Event Ends: Monday 6:00pm HST

Issued by: NWS Honolulu HI

Details: 
...FLOOD WATCH FOR KAUAI, NIIHAU, AND OAHU THROUGH THIS AFTERNOON...

* WHAT...Flash flooding caused by excessive rainfall continues to be
possible, but the threat decreases notably after 6 PM HST.
Therefore the watch is now ending then instead of 6 AM HST Tuesday.

* WHERE...Kauai, Oahu, and Niihau.

* WHEN...Until 6 PM HST this evening.

* IMPACTS...Flood prone roads and other low lying areas may be
closed due to elevated runoff and overflowing streams. Urban areas
may receive more significant flooding and property damage due to
rapid runoff.

* ADDITIONAL DETAILS...
- A trough stalled over the western Hawaiian Islands today will
continue to draw up more moisture rich southern latitude
moisture across the islands of Kauai, Niihau and Oahu.
Antecedent rain of between over 1 to 4 inches Sunday has
saturated the ground and caused more swollen streams. Thus,
it will not take as much rain to exacerbate minor flooding
concerns today. Showers may become locally heavy at times
with the slight chance for thunderstorm.

Information: 
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.1d3ff96dfbff71d4ea400886159d7d882cbd7c59.001.1
Codes: HIZ001, HIZ003, HIZ004, HIZ006, HIZ007, HIZ009, HIZ010, HIZ011, HIZ029, HIZ030, HIZ031, HIZ032, HIZ033, HIZ034, HIZ035, HIZ036
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.1d3ff96dfbff71d4ea400886159d7d882cbd7c59.001.1