Manchester, N.H. – New Hampshire will kick off Labor Day weekend with a mix of sunshine, patchy morning fog, and cooler September nights. Temperatures will dip into the upper 40s to low 50s in some towns, giving drivers and early risers a taste of fall air.
According to the National Weather Service in Gray, Maine, patchy fog is likely after 2 a.m. tonight and again Monday morning. Motorists on I-93 and Route 101 should allow extra travel time, as visibility may drop sharply during early commutes. By midday, skies turn sunny with highs climbing into the upper 70s.
Sunday and Labor Day will bring nearly identical conditions: cool mornings, sunny afternoons, and light winds. Monday afternoon looks ideal for holiday barbecues, but fog could return late at night. The warming trend continues Tuesday and Wednesday, with highs reaching near 80 before dropping back into the low 50s overnight.
Longer-range forecasts show cooler-than-normal air dominating much of the Midwest and Northeast through early September. New Hampshire could see more crisp mornings and near-perfect afternoons, signaling the seasonal transition ahead.
Residents are encouraged to prepare for quick temperature swings: dress in layers for morning commutes, allow extra time for foggy drives, and keep outdoor evening plans flexible as cool air settles in.
More updates are expected if conditions change, but for now, Labor Day in New Hampshire looks mostly sunny, mild, and pleasant.
Five-Day Forecast for Manchester, NH
- Sunday: Patchy fog early, then sunny. High 78, low 53.
- Labor Day Monday: Morning fog, mostly sunny. High 79, low 52.
- Tuesday: Sunny, warm. High 79, low 53.
- Wednesday: Sunny skies. High 81, low 55.
- Thursday: Slight chance of showers. High 77, low 54.
