Lexington Weather

Lexington, Massachusetts, USA

59°F
6/17/2026 5:06am 
  • Lexington Conditions: Clear
  • Temperature: 58.8°F / 14.9°CColder 0.4°F than last hour.
  • Dew Point: 52.3°FIncreased 0.3°Fsince last hour.
  • Relative Humidity: 79%Increased 2.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.77 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Watches, Warnings, and Advisories

Issued by the National Weather Service - Rapid City, SD

    RED FLAG WARNING  

Weston County Plains, WY

Red Flag Warning issued June 16 at 10:15PM MDT until June 17 at 8:00PM MDT by NWS Rapid City SD

RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT WEDNESDAY

Areas Affected: Southern Black Hills; Fall River County Area; Custer County Plains; Pine Ridge Area; Badlands Area; Bennett County Area; Southern Campbell; Weston County Plains

Urgency: Expected

Severity: Severe

Certainty: Likely

Alert Sent: Tuesday 10:15pm MDT

Alert Effective: Tuesday 10:15pm MDT

Alert Expires: Wednesday 6:15am MDT (expect updated alert by this time)

Event Onset: Wednesday 11:00am MDT

Event Ends: Wednesday 8:00pm MDT

Issued by: NWS Rapid City SD

Details: 
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT WEDNESDAY...

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT WEDNESDAY DUE TO
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR SOUTHERN BLACK HILLS, FALL
RIVER COUNTY AREA, CUSTER COUNTY PLAINS, PINE RIDGE AREA, BADLANDS
AREA, BENNETT COUNTY AREA, SOUTHERN CAMPBELL, AND WESTON COUNTY
PLAINS...

.A cold front will move through early Wednesday morning. Behind the
cold front, strong northwest winds from 25 to 35 mph with gusts from
40 to 55 mph are expected. Minimum relative humidity values will dip
as low as 18 percent, which is higher than normal thresholds.
However, the strong winds will make up the difference as well as
antecedent D2 to D3 drought and very dry weather over the past 1-2
weeks. Thus, critical fire weather conditions are expected for parts
of northeastern Wyoming and southwestern South Dakota late Wednesday
morning through the early evening hours.

The National Weather Service in Rapid City SD has issued a Red Flag
Warning.

* AFFECTED AREA...Fire Weather Zones 315, 317, 321, 322, 325, 326,
332, and 333.

* TIMING...From 11 AM to 8 PM MDT Wednesday.

* WINDS...Northwest winds 25 to 35 mph with gusts from 40 to 55 mph.

* RELATIVE HUMIDITY...Relative Humidity as low as 18 percent.

* IMPACTS...Any fires that develop will spread rapidly. Outdoor
burning is not recommended.

Information: 
A Red Flag Warning means that critical fire weather conditions are
either occurring now, or will shortly. A combination of strong winds,
low relative humidity, and warm temperatures can contribute to
extreme fire behavior.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.e7225dc59224fb5d4485875e16e9dbb1337a53ca.001.1
Codes: SDZ321, SDZ322, SDZ325, SDZ326, SDZ332, SDZ333, WYZ315, WYZ317
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e7225dc59224fb5d4485875e16e9dbb1337a53ca.001.1