Lexington Weather

Lexington, Massachusetts, USA

46°F
1/10/2026 2:53am 
  • Lexington Conditions: Clear
  • Temperature: 46.4°F / 8.0°CColder 1.3°F than last hour.
  • Dew Point: 43.3°FDecreased 2.2°Fsince last hour.
  • Relative Humidity: 89%Decreased 3.0% since last hour.
  • Wind: Wind from WNW WNW 1 mph, 10-min avg: 1 mph, gust: 3 mph
  • Barometer: 30.00 inRising 0.02 inHg/hr Rising Slowly
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Watches, Warnings, and Advisories

Issued by the National Weather Service - Boise, ID

    AIR STAGNATION ADVISORY  

West Central Mountains, ID

Air Stagnation Advisory issued January 9 at 1:27PM MST until January 15 at 5:00AM MST by NWS Boise ID

AIR STAGNATION ADVISORY IN EFFECT FROM 11 PM MST /10 PM PST/ THIS EVENING TO 5 AM MST /4 AM PST/ THURSDAY

Areas Affected: West Central Mountains; Lower Treasure Valley; Boise Mountains; Upper Treasure Valley; Western Magic Valley; Camas Prairie; Upper Weiser River; Harney County; Baker County; Malheur County; Oregon Lower Treasure Valley

Urgency: Expected

Severity: Moderate

Certainty: Likely

Alert Sent: Friday 1:27pm MST

Alert Effective: Friday 1:27pm MST

Alert Expires: Saturday 2:00pm MST (expect updated alert by this time)

Event Onset: Friday 11:00pm MST

Event Ends: Thursday 5:00am MST

Issued by: NWS Boise ID

Details: 
...AIR STAGNATION ADVISORY IN EFFECT FROM 11 PM MST /10 PM PST/ THIS EVENING TO 5 AM MST /4 AM PST/ THURSDAY...

* WHAT...An extended period of stagnant air, with light winds and
little vertical mixing. This is due to an inversion near the
surface that will continue to trap pollutants.

* WHERE...Portions of south central and southwest Idaho and
northeast and southeast Oregon.

* WHEN...From 11 PM MST /10 PM PST/ this evening to 5 AM MST /4 AM
PST/ Thursday.

* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.

Information: 
Persons with respiratory illness should follow their physicians
advice for dealing with high levels of air pollution during periods
of stagnant air.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.3b4ddb202b349533e7f4c071b50995718c8bdb8d.001.1
Codes: IDZ011, IDZ012, IDZ013, IDZ014, IDZ016, IDZ028, IDZ033, ORZ061, ORZ062, ORZ063, ORZ064
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3b4ddb202b349533e7f4c071b50995718c8bdb8d.001.1