Lexington Weather

Lexington, Massachusetts, USA

78°F

7/12/2026 6:00pm

Lexington Conditions: Partly cloudy
Temperature: 78.3°F / 25.7°C
Dew Point: 57.6°F
Relative Humidity: 49%
Wind: Calm, 10-min avg: Calm, gust: 1 mph
Barometer: 30.12 in Steady
Visibility: 10 miles
Rain Today: 0.00 in

Watches, Warnings, and Advisories

Issued by the National Weather Service - Great Falls, MT

HEAT ADVISORY

Cascade County below 5000ft, MT

Heat Advisory issued July 12 at 8:17AM MDT until July 13 at 9:00PM MDT by NWS Great Falls MT

HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT MONDAY

Areas Affected: Eastern Toole and Liberty; Hill County; Northern Blaine County; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Gates of the Mountains; Helena Valley; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley

Urgency: Expected

Severity: Moderate

Certainty: Likely

Alert Sent: Sunday 8:17am MDT

Alert Effective: Sunday 8:17am MDT

Alert Expires: Monday 6:00am MDT (expect updated alert by this time)

Event Onset: Sunday 8:17am MDT

Event Ends: Monday 9:00pm MDT

Issued by: NWS Great Falls MT

Details:

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT MONDAY...

* WHAT...Hot daytime temperatures of 95 to 105 degrees, with
overnight temperatures of 60 to 70 degrees expected.

* WHERE...Portions of central, north central, and southwest Montana.

* WHEN...Until 9 PM MDT Monday.

* IMPACTS...Hot temperatures may cause heat illnesses.

Information:

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

Meta data:

ID: urn:oid:2.49.0.1.840.0.e7389913d0626755797f2cfaed1d02b0625732ed.001.1
Codes: MTZ304, MTZ305, MTZ306, MTZ308, MTZ309, MTZ310, MTZ311, MTZ312, MTZ313, MTZ314, MTZ316, MTZ319, MTZ323, MTZ324, MTZ325, MTZ326
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e7389913d0626755797f2cfaed1d02b0625732ed.001.1

SPECIAL WEATHER STATEMENT

Cascade County below 5000ft, MT

Special Weather Statement issued July 12 at 3:55PM MDT by NWS Great Falls MT

A strong thunderstorm will impact portions of southeastern Lewis and Clark, northwestern Meagher, north central Jefferson and southwestern Cascade Counties through 430 PM MDT

Areas Affected: Cascade County below 5000ft; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Little Belt and Highwood Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains; Elkhorn and Boulder Mountains

Urgency: Expected

Severity: Moderate

Certainty: Observed

Alert Sent: Sunday 3:55pm MDT

Alert Effective: Sunday 3:55pm MDT

Alert Expires: Sunday 4:30pm MDT

Event Onset: Sunday 3:55pm MDT

Issued by: NWS Great Falls MT

Threats:

Max Wind Gusts: 50 MPH
Max Hail Size: 0.00 in

Details:

...A strong thunderstorm will impact portions of southeastern Lewis and Clark, northwestern Meagher, north central Jefferson and southwestern Cascade Counties through 430 PM MDT...

At 355 PM MDT, Doppler radar was tracking a strong thunderstorm over
Helena, moving northeast at 55 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.

Locations impacted include...
Helena, East Helena, Montana City, Black Sandy State Park, York, and
Spring Meadow Lake State Park.

Information:

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

Meta data:

ID: urn:oid:2.49.0.1.840.0.899097d559a1bcf5235ff1268cd9b7fe64067342.001.1
Codes: MTZ312, MTZ315, MTZ316, MTZ317, MTZ319, MTZ320, MTZ322
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.899097d559a1bcf5235ff1268cd9b7fe64067342.001.1