Lexington Weather

Lexington, Massachusetts, USA

71°F
7/28/2026 12:40am 
  • Lexington Conditions: Clear
  • Temperature: 70.9°F / 21.6°CColder 0.7°F than last hour.
  • Dew Point: 65.5°FIncreased 0.4°Fsince last hour.
  • Relative Humidity: 83%Increased 3.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.72 inFalling 0.02  inHg/hr Falling Slowly
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Watches, Warnings, and Advisories

Issued by the National Weather Service

    AIR QUALITY ALERT  

Petroleum County, MT


Air Quality Alert issued July 27 at 8:43AM MDT by NWS Great Falls MT

AIR QUALITY ALERT IN EFFECT


Areas Affected: Blaine, MT; Cascade, MT; Chouteau, MT; Deer Lodge, MT; Fergus, MT; Glacier, MT; Granite, MT; Hill, MT; Judith Basin, MT; Lake, MT; Lewis and Clark, MT; Liberty, MT; Missoula, MT; Petroleum, MT; Phillips, MT; Pondera, MT; Powell, MT; Ravalli, MT; Silver Bow, MT; Teton, MT; Toole, MT

Urgency: Unknown

Severity: Unknown

Certainty: Unknown

Alert Sent: Monday 8:44am MDT

Alert Effective: Monday 8:43am MDT

Alert Expires: Tuesday 9:00am MDT

Event Onset: Monday 8:43am MDT

Issued by: NWS Great Falls MT


Details:
...AIR QUALITY ALERT IN EFFECT...

AQAMT

The Montana Department of Environmental Quality has issued an air
quality alert for Blaine, Cascade, Chouteau, Deer Lodge, Fergus,
Glacier, Granite, Hill, Judith Basin, Lake, Lewis and Clark,
Liberty, Missoula, Petroleum, Pondera, Powell, Ravalli, Silver Bow,
Teton, Toole, Phillips counties in effect until 9AM on 07/28/2026 An
Air Quality Alert means that particulates have been trending upwards
and that an exceedance of the 24 hour National Ambient Air Quality
Standard (NAAQS) has occurred or may occur in the near future.

Elevated particulate levels from wildfire smoke

As of 6AM on 07/27/2026, particulate levels in Havre and Malta are
Unhealthy.

As of 6AM on 07/27/2026, particulate levels in Butte, Great Falls,
Hamilton, Helena, Lewistown and Sleeping Giant are Unhealthy for
Sensitive Groups.

As of 6AM on 07/27/2026, particulate levels in Columbia Falls, Cut
Bank, Dillon, Frenchtown, Libby, Missoula and Thompson Falls are
Moderate.

When air quality is Unhealthy... State and local health officials
recommend that people with respiratory or heart disease, the elderly,
and children should avoid prolonged exertion; everyone else should
limit prolonged exertion.

When air quality is Unhealthy for Sensitive Groups... State and local
health officials recommend that people with respiratory or heart
disease, the elderly and children should limit prolonged exertion.

When air quality is Moderate... State and local health officials
recommend that unusually sensitive people should consider reducing
prolonged or heavy exertion.

For more information visit the Montana Department of Environmental
Quality at http://todaysair.mtdeq.us

Meta data:
ID: urn:oid:2.49.0.1.840.0.63d495b22cc982f2e6020e32ffab3a73e8d9d9f6.001.1
Codes: MTC005, MTC013, MTC015, MTC023, MTC027, MTC035, MTC039, MTC041, MTC045, MTC047, MTC049, MTC051, MTC063, MTC069, MTC071, MTC073, MTC077, MTC081, MTC093, MTC099, MTC101
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.63d495b22cc982f2e6020e32ffab3a73e8d9d9f6.001.1

 

    AIR QUALITY ALERT  

Petroleum County, MT


Air Quality Alert issued July 27 at 8:30AM MDT by NWS Great Falls MT

AIR QUALITY ALERT IN EFFECT


Areas Affected: Blaine, MT; Cascade, MT; Chouteau, MT; Deer Lodge, MT; Fergus, MT; Glacier, MT; Granite, MT; Hill, MT; Judith Basin, MT; Lake, MT; Lewis and Clark, MT; Liberty, MT; Missoula, MT; Petroleum, MT; Phillips, MT; Pondera, MT; Powell, MT; Ravalli, MT; Silver Bow, MT; Teton, MT; Toole, MT

Urgency: Unknown

Severity: Unknown

Certainty: Unknown

Alert Sent: Monday 8:31am MDT

Alert Effective: Monday 8:30am MDT

Alert Expires: Tuesday 9:00am MDT

Event Onset: Monday 8:30am MDT

Issued by: NWS Great Falls MT


Details:
...AIR QUALITY ALERT IN EFFECT...

AQAMT

The Montana Department of Environmental Quality has issued an air
quality alert for Blaine, Cascade, Chouteau, Deer Lodge, Fergus,
Glacier, Granite, Hill, Judith Bsain, Lake, Lewis and Clark,
Liberty, Missoula, Petroleum, Pondera, Powell, Ravalli, Silver Bow,
Teton, Toole, Phillips counties in effect until 9AM on 07/28/2026 An
Air Quality Alert means that particulates have been trending upwards
and that an exceedance of the 24 hour National Ambient Air Quality
Standard (NAAQS) has occurred or may occur in the near future.

Elevated particulate levels from wildfire smoke

As of 6AM on 07/27/2026, particulate levels in Havre and Malta are
Unhealthy.

As of 6AM on 07/27/2026, particulate levels in Butte, Great Falls,
Hamilton, Helena, Lewistown and Sleeping Giant are Unhealthy for
Sensitive Groups.

As of 6AM on 07/27/2026, particulate levels in Columbia Falls, Cut
Bank, Dillon, Frenchtown, Libby, Missoula and Thompson Falls are
Moderate.

When air quality is Unhealthy... State and local health officials
recommend that people with respiratory or heart disease, the elderly,
and children should avoid prolonged exertion; everyone else should
limit prolonged exertion.

When air quality is Unhealthy for Sensitive Groups... State and local
health officials recommend that people with respiratory or heart
disease, the elderly and children should limit prolonged exertion.

When air quality is Moderate... State and local health officials
recommend that unusually sensitive people should consider reducing
prolonged or heavy exertion.

For more information visit the Montana Department of Environmental
Quality at http://todaysair.mtdeq.us

Meta data:
ID: urn:oid:2.49.0.1.840.0.4eb40f85cafe493a0468478c54613c24a060d78f.001.1
Codes: MTC005, MTC013, MTC015, MTC023, MTC027, MTC035, MTC039, MTC041, MTC045, MTC047, MTC049, MTC051, MTC063, MTC069, MTC071, MTC073, MTC077, MTC081, MTC093, MTC099, MTC101
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.4eb40f85cafe493a0468478c54613c24a060d78f.001.1