MANCHESTER, N.H. – A chill is sweeping across southern New Hampshire as temperatures dip near freezing by early Friday, signaling the first frost risk of the fall season. Residents from Hooksett to Londonderry should take action tonight to protect sensitive plants before a sunny, warmer weekend returns.
According to the National Weather Service in Gray, clear skies and calm winds will allow rapid cooling late Thursday night, dropping lows to the mid-30s. Patchy frost may form across valleys and open areas, especially along the I-93 corridor north of Manchester. Gardeners are urged to cover tender vegetation and bring potted plants indoors to avoid damage.
Thursday brings sunshine with highs near 53°F, followed by a sunny Friday reaching about 61°F once morning frost burns off. Saturday will feature a beautiful fall afternoon, with highs in the low 60s and plenty of sunshine—ideal for leaf peeping, pumpkin patch visits, and outdoor events across southern New Hampshire.
Clouds will increase late Sunday ahead of a developing system that could bring showers Sunday night into Monday morning. Rain chances reach 60% by late Sunday, but the first half of the weekend remains crisp and clear.
Next week begins mild, with highs in the 60s and scattered showers likely through midweek. For now, prepare for a frosty Friday morning and a picture-perfect Saturday that captures the heart of New England fall.
Five-Day Forecast for Manchester, NH:
Thu: 53/37 – Sunny; gusts up to 25 mph.
Fri: 61/35 – Patchy frost early; sunny afternoon.
Sat: 63/40 – Bright and mild; calm breeze.
Sun: 69/50 – Increasing clouds; late showers possible.
Mon: 64/44 – Showers early; partly sunny later.
