Lexington Weather

Lexington, Massachusetts, USA

70°F
6/10/2026 8:54am 
  • Lexington Conditions: Clear
  • Temperature: 70.0°F / 21.1°CWarmer 4.0°F than last hour.
  • Dew Point: 62.4°FIncreased 3.4°Fsince last hour.
  • Relative Humidity: 77%Decreased 1.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.86 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Red Flag Warning

Issued by the National Weather Service - San Francisco Bay Area, CA

    RED FLAG WARNING  

North Bay Interior Mountains, CA; East Bay Hills, CA

Red Flag Warning issued June 9 at 6:43PM PDT until June 11 at 9:00AM PDT by NWS San Francisco CA

RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 9 AM PDT THURSDAY

Areas Affected: North Bay Interior Mountains; East Bay Hills

Urgency: Expected

Severity: Severe

Certainty: Likely

Alert Sent: Tuesday 6:43pm PDT

Alert Effective: Tuesday 6:43pm PDT

Alert Expires: Wednesday 6:00am PDT (expect updated alert by this time)

Event Onset: Wednesday 11:00pm PDT

Event Ends: Thursday 9:00am PDT

Issued by: NWS San Francisco CA

Details: 
...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 9 AM PDT THURSDAY...

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 9 AM
PDT THURSDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR NORTH BAY
INTERIOR MOUNTAINS AND EAST BAY HILLS...

....Hot, dry, and windy conditions combined with mixed vegetation,
such as grass, will lead to critical fire weather conditions
Wednesday night into Thursday morning...

* AFFECTED AREA...East Bay Hills and North Bay Interior Mountains.

* TIMING...From 11 PM Wednesday to 9 AM PDT Thursday.

* WINDS 20 FOOT...Northwest winds 10 to 20 mph with gusts up to 45
mph. Ridge top wind gusts may exceed 60 mph.

* RELATIVE HUMIDITY...Relative Humidity between 12 to 18 percent.

* IMPACTS...Extreme fire behavior and rapid rates of spread likely on
new and existing wildfires. There will be an increased risk for
power outages.

Information: 
Please advise responding agencies or fire crews in the field of this
fire weather alert.

Never leave burning debris or camp fires unattended; extinguish them
completely. Avoid using equipment or machinery that could create a
spark. Secure tow chains to avoid dragging and subsequent sparks.
Never toss cigarette butts out of your vehicle's window. Remember,
one less spark, one less flame.

Familiarize yourself with your emergency plan! Where will you go? How
will you get there? Do you have your go kit ready to go? Who will you
call to let others know you are safe? Visit ready.gov/plan for more
information.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.47771983edc4ed98911598ff1f827e50443e3eac.001.1
Codes: CAZ504, CAZ515
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.47771983edc4ed98911598ff1f827e50443e3eac.001.1