Lexington Weather

Lexington, Massachusetts, USA

68°F
7/28/2026 7:32am 
  • Lexington Conditions: Mist, Overcast
  • Temperature: 68.2°F / 20.1°CWarmer 0.7°F than last hour.
  • Dew Point: 66.4°FIncreased 1.1°Fsince last hour.
  • Relative Humidity: 94%Increased 1.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: None
  • Barometer: 29.71 in Steady
  • Visibility: 4 miles
  • Rain Today: 0.00 in
  •   

Watches, Warnings, and Advisories

Issued by the National Weather Service - NWS Tucson Arizona

    FLOOD WATCH  

Baboquivari Mountains including Kitt Peak, AZ

Flood Watch issued July 27 at 8:39PM MST until July 28 at 5:00AM MST by NWS Tucson AZ

FLOOD WATCH IN EFFECT UNTIL 5 AM MST TUESDAY

Areas Affected: Upper Santa Cruz River and Altar Valleys including Nogales; Upper San Pedro River Valley including Sierra Vista/Benson; Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon; Baboquivari Mountains including Kitt Peak

Urgency: Future

Severity: Severe

Certainty: Possible

Alert Sent: Monday 8:39pm MST

Alert Effective: Monday 8:39pm MST

Alert Expires: Tuesday 5:00am MST

Event Onset: Monday 9:00pm MST

Event Ends: Tuesday 5:00am MST

Issued by: NWS Tucson AZ

Details: 
...FLOOD WATCH IN EFFECT UNTIL 5 AM MST TUESDAY...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...A portion of Southeast Arizona, including the following
areas, Baboquivari Mountains, Dragoon and Mule and Huachuca and
Santa Rita Mountains, Upper San Pedro River Valley and Upper Santa
Cruz River Valley/Altar Valley.

* WHEN...Until 5 AM MST Tuesday.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- An organized cluster of storms or mesoscale convective system
(MCS) in northeast Sonora Mexico is expected to slowly drift
northwest across portions of south-central Arizona late this
evening and overnight tonight. This storm system will be capable
of producing moderate rainfall with pockets of very heavy
rainfall. Although widespread rainfall amounts between 0.50 and
1.00 inches are anticipated, localized rainfall amounts between 1
and 3 inches will be possible resulting in localized flash
flooding. The heaviest rainfall is expected over the southwest
half of Santa Cruz county and extreme south-central Pima county
and may have significant impact on the Nogales Wash overnight.
Heavy rainfall Monday evening along Highway 286 and along and
Arivaca Road have made portions of south central Pima county
vulnerable to flash flooding with additional rainfall overnight.
- http://www.weather.gov/safety/flood

Information: 
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.56cb007b0b4134fbefbb3e25c1a3deb21f6a093c.001.1
Codes: AZZ503, AZZ507, AZZ513, AZZ515
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.56cb007b0b4134fbefbb3e25c1a3deb21f6a093c.001.1