Lexington Weather

Lexington, Massachusetts, USA

59°F
6/17/2026 4:26am 
  • Lexington Conditions: Clear
  • Temperature: 59.2°F / 15.1°CColder 0.3°F than last hour.
  • Dew Point: 52.3°FIncreased 0.7°Fsince last hour.
  • Relative Humidity: 78%Increased 3.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.76 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Watches, Warnings, and Advisories

Issued by the National Weather Service - Austin/San Antonio, TX

    EXTREME HEAT WARNING  

Dimmit, TX

Extreme Heat Warning issued June 17 at 12:04AM CDT until June 18 at 8:00PM CDT by NWS Austin/San Antonio TX

EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON TO 8 PM CDT THURSDAY

Areas Affected: Williamson; Hays; Travis; Bastrop; Lee; Uvalde; Medina; Bexar; Comal; Guadalupe; Caldwell; Fayette; Maverick; Zavala; Frio; Atascosa; Wilson; Karnes; Gonzales; De Witt; Lavaca; Dimmit

Urgency: Expected

Severity: Severe

Certainty: Likely

Alert Sent: Wednesday 12:04am CDT

Alert Effective: Wednesday 12:04am CDT

Alert Expires: Wednesday 4:00pm CDT (expect updated alert by this time)

Event Onset: Thursday 12:00pm CDT

Event Ends: Thursday 8:00pm CDT

Issued by: NWS Austin/San Antonio TX

Details: 
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON TO 8 PM CDT THURSDAY...

* WHAT...Dangerously hot conditions with heat index values up to 112
expected.

* WHERE...The Hill Country, Edwards Plateau, and northern Rio Grande
Plains.

* WHEN...From noon to 8 PM CDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

* ADDITIONAL DETAILS...Little in the way of extreme heat has been
observed so far this
Summer. The risk will be higher with little time to adjust to the
extreme heat.

Information: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Do not leave young children or pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.a426d51c1247e475d0f9f10107220a3c9202d35d.001.1
Codes: TXZ173, TXZ191, TXZ192, TXZ193, TXZ194, TXZ203, TXZ204, TXZ205, TXZ206, TXZ207, TXZ208, TXZ209, TXZ217, TXZ218, TXZ219, TXZ220, TXZ221, TXZ222, TXZ223, TXZ224, TXZ225, TXZ228
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a426d51c1247e475d0f9f10107220a3c9202d35d.001.1