Lexington Weather

Lexington, Massachusetts, USA

70°F
8/18/2026 8:05am 
  • Lexington Conditions: Overcast
  • Temperature: 70.3°F / 21.3°CWarmer 0.5°F than last hour.
  • Dew Point: 68.5°FIncreased 0.9°Fsince last hour.
  • Relative Humidity: 94%Increased 1.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.81 inRising 0.02 inHg/hr Rising Slowly
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Current Watches, Warnings, and Advisories

For Arizona, Colorado, New Mexico, Nevada, Utah

Issued by the National Weather Service

   Extreme Heat Warning - Expires: Tuesday 3:30pm MST
       Aguila Valley, AZ
       Apache Junction/Gold Canyon, AZ
       Cave Creek/New River, AZ
       Fountain Hills/East Mesa, AZ
       Gila Bend, AZ
       Northwest Pinal County, AZ
       Sonoran Desert Natl Monument, AZ
       Tonopah Desert, AZ
       West Pinal County, AZ

   Extreme Heat Warning - Expires: Tuesday 3:30pm MST
       Buckeye/Avondale, AZ
       Central Phoenix, AZ
       Deer Valley, AZ
       East Valley, AZ
       North Phoenix/Glendale, AZ
       Northwest Valley, AZ
       Scottsdale/Paradise Valley, AZ
       South Mountain/Ahwatukee, AZ
       Southeast Valley/Queen Creek, AZ

   Extreme Heat Warning - Expires: Tuesday 3:30pm MST
       Central La Paz, AZ
       Gila River Valley, AZ
       Kofa, AZ
       Parker Valley, AZ
       Southeast Yuma County, AZ
       Yuma, AZ

   Extreme Heat Warning - Expires: Thursday 8:00pm MST
       Grand Canyon Country, AZ

   Extreme Heat Warning - Expires: Wednesday 5:00am PDT
       Hualapai Mountains, AZ
       Lake Havasu and Fort Mohave, AZ
       Lake Mead - AZ side, AZ
       Lake Mohave - AZ side, AZ
       Northwest Deserts, AZ
       Lake Mead - NV side, NV
       Lake Mohave - NV side, NV
       Las Vegas Valley, NV
       Northeast Clark County, NV
       Southern Clark County, NV
       Western Clark and Southern Nye County, NV

   Extreme Heat Warning - Expires: Tuesday 3:30pm MST
       San Carlos, AZ

   Extreme Heat Warning - Expires: Tuesday 5:00pm MST
       South Central Pinal County including Eloy/Picacho Peak State Park, AZ
       Southeast Pinal County including Kearny/Mammoth/Oracle, AZ
       Tohono O'odham Nation including Sells, AZ
       Tucson Metro Area including Tucson/Green Valley/Marana/Vail, AZ
       Upper Gila River and Aravaipa Valleys including Clifton/Safford, AZ
       Western Pima County Including Ajo/Organ Pipe Cactus National Monument, AZ

   Air Quality Alert - Expires: Tuesday 4:00pm MDT
       Adams County, CO
       Arapahoe County, CO
       Boulder County, CO
       Broomfield County, CO
       Denver County, CO
       Douglas County, CO
       Jefferson County, CO
       Larimer County, CO
       Weld County, CO

Aguila Valley, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Apache Junction/Gold Canyon, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Buckeye/Avondale, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Cave Creek/New River, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Central La Paz, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Central Phoenix, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Deer Valley, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

East Valley, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Fountain Hills/East Mesa, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Gila Bend, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Gila River Valley, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Grand Canyon Country, AZ
      Extreme Heat Warning - Expires: Thursday 8:00pm MST

Hualapai Mountains, AZ
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

Kofa, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Lake Havasu and Fort Mohave, AZ
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

Lake Mead - AZ side, AZ
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

Lake Mohave - AZ side, AZ
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

North Phoenix/Glendale, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Northwest Deserts, AZ
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

Northwest Pinal County, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Northwest Valley, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Parker Valley, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

San Carlos, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Scottsdale/Paradise Valley, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Sonoran Desert Natl Monument, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

South Central Pinal County including Eloy/Picacho Peak State Park, AZ
      Extreme Heat Warning - Expires: Tuesday 5:00pm MST

South Mountain/Ahwatukee, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Southeast Pinal County including Kearny/Mammoth/Oracle, AZ
      Extreme Heat Warning - Expires: Tuesday 5:00pm MST

Southeast Valley/Queen Creek, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Southeast Yuma County, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Tohono O'odham Nation including Sells, AZ
      Extreme Heat Warning - Expires: Tuesday 5:00pm MST

Tonopah Desert, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Tucson Metro Area including Tucson/Green Valley/Marana/Vail, AZ
      Extreme Heat Warning - Expires: Tuesday 5:00pm MST

Upper Gila River and Aravaipa Valleys including Clifton/Safford, AZ
      Extreme Heat Warning - Expires: Tuesday 5:00pm MST

West Pinal County, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Western Pima County Including Ajo/Organ Pipe Cactus National Monument, AZ
      Extreme Heat Warning - Expires: Tuesday 5:00pm MST

Yuma, AZ
      Extreme Heat Warning - Expires: Tuesday 3:30pm MST

Adams County, CO
      Air Quality Alert - Expires: Tuesday 4:00pm MDT

Arapahoe County, CO
      Air Quality Alert - Expires: Tuesday 4:00pm MDT

Boulder County, CO
      Air Quality Alert - Expires: Tuesday 4:00pm MDT

Broomfield County, CO
      Air Quality Alert - Expires: Tuesday 4:00pm MDT

Denver County, CO
      Air Quality Alert - Expires: Tuesday 4:00pm MDT

Douglas County, CO
      Air Quality Alert - Expires: Tuesday 4:00pm MDT

Jefferson County, CO
      Air Quality Alert - Expires: Tuesday 4:00pm MDT

Larimer County, CO
      Air Quality Alert - Expires: Tuesday 4:00pm MDT

Weld County, CO
      Air Quality Alert - Expires: Tuesday 4:00pm MDT

Lake Mead - NV side, NV
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

Lake Mohave - NV side, NV
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

Las Vegas Valley, NV
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

Northeast Clark County, NV
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

Southern Clark County, NV
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT

Western Clark and Southern Nye County, NV
      Extreme Heat Warning - Expires: Wednesday 5:00am PDT