New Hampshire – The pavement is already warming under bright sunshine, and the hottest stretch of the week is quickly taking shape. Comfortable morning air will disappear as temperatures surge through southern New Hampshire, bringing dangerous heat that could affect travel, outdoor work, and recreation over the next several days.
According to the National Weather Service in Gray, skies remain mostly sunny with dry weather dominating the region as strong high pressure settles across New England. Today’s high reaches around 90 degrees, but a much hotter air mass arrives Tuesday. Temperatures are expected to climb to 98 degrees, while the heat index could reach 102 degrees, creating the most uncomfortable conditions of the week.
The combination of strong sunshine, light winds, and increasing humidity will make it feel even hotter during the afternoon. Residents planning time outside should schedule strenuous activities during the early morning or evening hours. Drink water frequently, wear lightweight clothing, and check on older adults and anyone without reliable air conditioning.
Drivers along Interstate 93, Interstate 293, Route 101, and the Everett Turnpike should expect vehicles parked in direct sunlight to heat rapidly during the afternoon. Never leave children or pets inside a parked vehicle, even for a short time. Interior temperatures can become dangerous within minutes.
A slight chance of showers develops Tuesday night, but widespread rainfall is not expected. Sunshine returns Wednesday with another hot afternoon near 94 degrees, followed by highs around 90 degrees Thursday. While severe thunderstorms remain focused across parts of the Plains and Midwest, New Hampshire’s primary weather concern through midweek is prolonged summer heat.
Long-range outlooks from the Climate Prediction Center continue signaling above-normal temperatures across New England into the 6-to-10-day period, suggesting the warm pattern may linger beyond this week.
Five-Day Forecast for Manchester, NH
- Monday: Sunny and hot. High 90°F.
- Monday Night: Slight chance of showers before late evening, then partly cloudy. Low 67°F.
- Tuesday: Sunny and hot. High 98°F. Heat index as high as 102°F.
- Tuesday Night: Partly cloudy. Low 77°F.
- Wednesday: Mostly sunny and hot. High 94°F.
- Wednesday Night: Partly cloudy. Low 66°F.
- Thursday: Sunny and hot. High 90°F.
