Lexington Weather

Lexington, Massachusetts, USA

39°F
1/11/2026 3:43am 
  • Lexington Conditions: Light rain, Mist, Overcast
  • Temperature: 38.7°F / 3.7°CColder 0.7°F than last hour.
  • Dew Point: 37.4°FDecreased 0.7°Fsince last hour.
  • Relative Humidity: 95% 
  • Wind: Wind from N N 1 mph, 10-min avg: 1 mph, gust: 4 mph
  • Barometer: 29.66 inFalling 0.02 inHg/hr Falling Slowly
  • Visibility: 2½ miles
  • Rain Today: 0.07 in
  •   

Air Stagnation Advisory

Issued by the National Weather Service - Boise, ID

    AIR STAGNATION ADVISORY  

West Central Mountains, ID; Lower Treasure Valley, ID; Boise Mountains, ID; Upper Treasure Valley, ID; Western Magic Valley, ID; Camas Prairie, ID; Upper Weiser River, ID; Harney County, OR; Baker County, OR; Malheur County, OR; Oregon Lower Treasure Valley, OR

Air Stagnation Advisory issued January 10 at 12:08PM MST until January 16 at 5:00AM MST by NWS Boise ID

AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 5 AM MST /4 AM PST/ FRIDAY

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: Saturday 12:08pm MST

Alert Effective: Saturday 12:08pm MST

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

Event Onset: Saturday 12:08pm MST

Event Ends: Friday 5:00am MST

Issued by: NWS Boise ID

Details: 
...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 5 AM MST /4 AM PST/ FRIDAY...

* 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...Until 5 AM MST /4 AM PST/ Friday.

* 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:2.49.0.1.840.0.26b106afdc079055c81a7a34fd8a498772033ceb.001.1
Codes: IDZ011, IDZ012, IDZ013, IDZ014, IDZ016, IDZ028, IDZ033, ORZ061, ORZ062, ORZ063, ORZ064
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.26b106afdc079055c81a7a34fd8a498772033ceb.001.1