Lexington Weather

Lexington, Massachusetts, USA

72°F
8/27/2026 10:43pm 
  • Lexington Conditions: Clear
  • Temperature: 72.1°F / 22.3°CColder 0.9°F than last hour.
  • Dew Point: 67.1°FIncreased 0.5°Fsince last hour.
  • Relative Humidity: 84%Increased 4.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 1 mph
  • Barometer: 29.96 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Current Extreme Heat Warning Alerts / Advisories

Issued by the National Weather Service

   Extreme Heat Warning - Expires: Friday 4:00am MST
       Aguila Valley, AZ
       Apache Junction/Gold Canyon, AZ
       Cave Creek/New River, AZ
       Fountain Hills/East Mesa, AZ
       Gila Bend, AZ
       New River Mesa, AZ
       Northwest Pinal County, AZ
       Rio Verde/Salt River, AZ
       Sonoran Desert Natl Monument, AZ
       Superior, AZ
       Tonopah Desert, AZ
       West Pinal County, AZ

   Extreme Heat Warning - Expires: Friday 4:00am 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: Friday 4:00am MST
       Central La Paz, AZ
       Gila River Valley, AZ
       Kofa, AZ
       Parker Valley, AZ
       Southeast Yuma County, AZ
       Yuma, AZ
       Chuckwalla Valley, CA
       Imperial County Southeast, CA
       Imperial County Southwest, CA
       Imperial County West, CA
       Imperial Valley, CA
       Palo Verde Valley, CA

   Extreme Heat Warning - Expires: Friday 4:00am MST
       Dripping Springs, AZ
       Globe/Miami, AZ
       Tonto Basin, AZ

   Extreme Heat Warning - Expires: Friday 5:00am MST
       Eastern Cochise County Below 5000 Feet including Douglas/Willcox, AZ
       Upper San Pedro River Valley including Sierra Vista/Benson, AZ
       Upper Santa Cruz River and Altar Valleys including Nogales, AZ

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

   Extreme Heat Warning - Expires: Friday 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
       Cadiz Basin, CA
       Death Valley National Park, CA
       Eastern Mojave Desert, Including the Mojave National Preserve, CA
       Morongo Basin, CA
       San Bernardino County-Upper Colorado River Valley, CA
       Western Mojave Desert, CA
       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: Friday 4:00am MST
       San Carlos, AZ

   Extreme Heat Warning - Expires: Friday 5:00am 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

   Extreme Heat Warning - Expires: Friday 8:00pm MST
       Yavapai County Valleys and Basins, AZ

   Extreme Heat Warning - Expires: Friday 1:00am PDT
       Antelope Valley, CA
       Calabasas and Agoura Hills, CA
       Central Ventura County Valleys, CA
       Cuyama Valley, CA
       Eastern Antelope Valley Foothills, CA
       Eastern San Fernando Valley, CA
       Eastern San Gabriel Mountains, CA
       Eastern Santa Monica Mountains Recreational Area, CA
       Interstate 5 Corridor, CA
       Lake Casitas, CA
       Los Angeles County San Gabriel Valley, CA
       Ojai Valley, CA
       Santa Barbara County Interior Mountains, CA
       Santa Clarita Valley, CA
       Santa Susana Mountains, CA
       Southeastern Ventura County Valleys, CA
       Southern Ventura County Mountains, CA
       Western Antelope Valley Foothills, CA
       Western San Fernando Valley, CA
       Western San Gabriel Mountains and Highway 14 Corridor, CA
       Western Santa Monica Mountains Recreational Area, CA

   Extreme Heat Warning - Expires: Thursday 10:30pm PDT
       Apple and Lucerne Valleys, CA

   Extreme Heat Warning - Expires: Friday 1:00am PDT
       Catalina and Santa Barbara Islands, CA
       Los Angeles County Beaches, CA
       Los Angeles County Inland Coast including Downtown Los Angeles, CA
       Malibu Coast, CA
       Palos Verdes Hills, CA
       Santa Barbara County Southeastern Coast, CA
       Ventura County Beaches, CA
       Ventura County Inland Coast, CA

   Extreme Heat Warning - Expires: Friday 4:00am PDT
       Chiriaco Summit, CA
       Chuckwalla Mountains, CA
       Joshua Tree NP East, CA
       Salton Sea, CA

   Extreme Heat Warning - Expires: Thursday 10:30pm PDT
       Coachella Valley, CA
       San Diego County Deserts, CA
       San Gorgonio Pass Near Banning, CA

   Extreme Heat Warning - Expires: Thursday 10:30pm PDT
       Orange County Inland, CA

   Extreme Heat Warning - Expires: Thursday 10:30pm PDT
       San Bernardino and Riverside County Valleys-The Inland Empire, CA

   Extreme Heat Warning - Expires: Thursday 10:30pm PDT
       San Diego County Inland Valleys, CA

   Extreme Heat Warning - Expires: Thursday 10:30pm PDT
       San Diego County Mountains, CA

   Extreme Heat Warning - Expires: Thursday 10:30pm PDT
       Santa Ana Mountains and Foothills, CA

   Extreme Heat Warning - Expires: Friday 1:00am PDT
       Santa Barbara County Southwestern Coast, CA

   Extreme Heat Warning - Expires: Friday 1:00am PDT
       Santa Ynez Mountains Eastern Range, CA
       Santa Ynez Mountains Western Range, CA

Aguila Valley, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Apache Junction/Gold Canyon, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Buckeye/Avondale, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Cave Creek/New River, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Central La Paz, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Central Phoenix, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Deer Valley, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Dripping Springs, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

East Valley, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Eastern Cochise County Below 5000 Feet including Douglas/Willcox, AZ
      Extreme Heat Warning - Expires: Friday 5:00am MST

Fountain Hills/East Mesa, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Gila Bend, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Gila River Valley, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Globe/Miami, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

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

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

Kofa, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

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

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

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

New River Mesa, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

North Phoenix/Glendale, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

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

Northwest Pinal County, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Northwest Valley, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Parker Valley, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Rio Verde/Salt River, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

San Carlos, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Scottsdale/Paradise Valley, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Sonoran Desert Natl Monument, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

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

South Mountain/Ahwatukee, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

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

Southeast Valley/Queen Creek, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Southeast Yuma County, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Superior, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

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

Tonopah Desert, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Tonto Basin, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

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

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

Upper San Pedro River Valley including Sierra Vista/Benson, AZ
      Extreme Heat Warning - Expires: Friday 5:00am MST

Upper Santa Cruz River and Altar Valleys including Nogales, AZ
      Extreme Heat Warning - Expires: Friday 5:00am MST

West Pinal County, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

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

Yavapai County Valleys and Basins, AZ
      Extreme Heat Warning - Expires: Friday 8:00pm MST

Yuma, AZ
      Extreme Heat Warning - Expires: Friday 4:00am MST

Antelope Valley, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Apple and Lucerne Valleys, CA
      Extreme Heat Warning - Expires: Thursday 10:30pm PDT

Cadiz Basin, CA
      Extreme Heat Warning - Expires: Friday 5:00am PDT

Calabasas and Agoura Hills, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Catalina and Santa Barbara Islands, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Central Ventura County Valleys, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Chiriaco Summit, CA
      Extreme Heat Warning - Expires: Friday 4:00am PDT

Chuckwalla Mountains, CA
      Extreme Heat Warning - Expires: Friday 4:00am PDT

Chuckwalla Valley, CA
      Extreme Heat Warning - Expires: Friday 4:00am MST

Coachella Valley, CA
      Extreme Heat Warning - Expires: Thursday 10:30pm PDT

Cuyama Valley, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Death Valley National Park, CA
      Extreme Heat Warning - Expires: Friday 5:00am PDT

Eastern Antelope Valley Foothills, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Eastern Mojave Desert, Including the Mojave National Preserve, CA
      Extreme Heat Warning - Expires: Friday 5:00am PDT

Eastern San Fernando Valley, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Eastern San Gabriel Mountains, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Eastern Santa Monica Mountains Recreational Area, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Imperial County Southeast, CA
      Extreme Heat Warning - Expires: Friday 4:00am MST

Imperial County Southwest, CA
      Extreme Heat Warning - Expires: Friday 4:00am MST

Imperial County West, CA
      Extreme Heat Warning - Expires: Friday 4:00am MST

Imperial Valley, CA
      Extreme Heat Warning - Expires: Friday 4:00am MST

Interstate 5 Corridor, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Joshua Tree NP East, CA
      Extreme Heat Warning - Expires: Friday 4:00am PDT

Lake Casitas, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Los Angeles County Beaches, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Los Angeles County Inland Coast including Downtown Los Angeles, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Los Angeles County San Gabriel Valley, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Malibu Coast, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Morongo Basin, CA
      Extreme Heat Warning - Expires: Friday 5:00am PDT

Ojai Valley, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Orange County Inland, CA
      Extreme Heat Warning - Expires: Thursday 10:30pm PDT

Palo Verde Valley, CA
      Extreme Heat Warning - Expires: Friday 4:00am MST

Palos Verdes Hills, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Salton Sea, CA
      Extreme Heat Warning - Expires: Friday 4:00am PDT

San Bernardino County-Upper Colorado River Valley, CA
      Extreme Heat Warning - Expires: Friday 5:00am PDT

San Bernardino and Riverside County Valleys-The Inland Empire, CA
      Extreme Heat Warning - Expires: Thursday 10:30pm PDT

San Diego County Deserts, CA
      Extreme Heat Warning - Expires: Thursday 10:30pm PDT

San Diego County Inland Valleys, CA
      Extreme Heat Warning - Expires: Thursday 10:30pm PDT

San Diego County Mountains, CA
      Extreme Heat Warning - Expires: Thursday 10:30pm PDT

San Gorgonio Pass Near Banning, CA
      Extreme Heat Warning - Expires: Thursday 10:30pm PDT

Santa Ana Mountains and Foothills, CA
      Extreme Heat Warning - Expires: Thursday 10:30pm PDT

Santa Barbara County Interior Mountains, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Santa Barbara County Southeastern Coast, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Santa Barbara County Southwestern Coast, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Santa Clarita Valley, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Santa Susana Mountains, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Santa Ynez Mountains Eastern Range, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Santa Ynez Mountains Western Range, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Southeastern Ventura County Valleys, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Southern Ventura County Mountains, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Ventura County Beaches, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Ventura County Inland Coast, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Western Antelope Valley Foothills, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Western Mojave Desert, CA
      Extreme Heat Warning - Expires: Friday 5:00am PDT

Western San Fernando Valley, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Western San Gabriel Mountains and Highway 14 Corridor, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

Western Santa Monica Mountains Recreational Area, CA
      Extreme Heat Warning - Expires: Friday 1:00am PDT

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

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

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

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

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

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