Sky: overcastWeather: mist

Visibility: 4 mile(s)

Maxtemptime: 12:00 AM

Mintemptime: 1:39 AM

Maxgusttoday: 0.0 kts

Maxgusttodaytime: 1:56 PM

pressurechangein3hour: -0.049 in.

pressurechangein6hour: -0.023 in.

pressurechangein12hour: -0.059 in.

pressurechangein24hour: -0.226 in.

baro-trend: Steady

Yearrain: 11.82 in.
Claremont, NH Weather - NWS Alerts Details
Updated06/11/2026 2:42am 
 

Weather Alerts for Merrimack County

Issued by the National Weather Service

Heat Advisory  HEAT ADVISORY   Heat Advisory
MERRIMACK COUNTY

Areas Affected:
Southern Grafton - Sullivan - Merrimack - Belknap - Strafford - Cheshire - Eastern Hillsborough - Interior Rockingham - Western And Central Hillsborough
Effective: Thu, 6/11 2:24am Updated: Thu, 6/11 2:33am Urgency: Expected
Expires: Thu, 6/11 8:00pm Severity:  Moderate  Certainty: Likely

 
Details:
* WHAT...Heat index values up to 97 expected.

* WHERE...Western and Central Hillsborough, Belknap, Merrimack,
Strafford, Sullivan, Southern Grafton, Cheshire, Eastern
Hillsborough, and Interior Rockingham Counties.

* WHEN...From noon today to 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...It will remain warm tonight as overnight lows
only dip into the mid 60s to lower 70s.

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

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.




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