Autumn's Evening Embrace: Your New Hampshire Weather Outlook for October 17, 2025

As the vibrant hues of autumn continue to paint the New Hampshire landscape, we settle into another characteristically crisp evening on October 17, 2025. Today brought us a mix of classic fall weather, with bright sunshine gracing many areas, though some northern regions saw a few lingering clouds.

The air carried that distinctive coolness, a gentle reminder that we are deep into the season of falling leaves and cozy sweaters.

Tonight, temperatures across the Granite State are set to take a significant dip. Expect overnight lows to plunge into the mid-30s for most of the state, with some sheltered valleys potentially seeing readings in the upper 20s.

This means a widespread frost advisory is in effect for much of New Hampshire. If you have any tender plants still out, now is the time to bring them indoors or cover them up. Don't forget to protect your outdoor pipes if they are exposed.

Looking ahead to your Friday, prepare for another splendid autumn day! We anticipate a return to abundant sunshine, bathing the state in glorious fall light.

Highs tomorrow will be pleasantly cool, generally reaching the low to mid-50s. It's truly perfect weather for enjoying the last vestiges of peak foliage, perhaps a scenic drive, or a brisk walk through a local park.

As we glide into the weekend, the forecast remains largely cooperative. Saturday looks to be a repeat of Friday’s delightful conditions, offering plenty of sunshine and comfortable temperatures.

By Sunday, we might see a slight increase in cloud cover as a new system begins to approach, but it should remain dry for most of the day. Enjoy these quintessential New Hampshire autumn days while they last, as the colder whispers of winter are never too far behind.