New Hampshire's Autumn Forecast: A Detailed Evening Weather Outlook and Week Ahead

As the final rays of an autumn sun dip below New Hampshire's picturesque horizon this Tuesday evening, October 14, 2025, residents are in for a classic crisp night. Our evening forecast brings mostly clear skies, allowing the last vestiges of daylight to give way to a star-studded canopy across much of the Granite State.

Tonight will be cool, with temperatures steadily falling into the low to mid-30s across interior regions, while coastal areas might hover a few degrees warmer in the upper 30s. A light breeze from the north will add a noticeable chill, making it a perfect night for a warm beverage indoors. Those in more rural, sheltered valleys should be prepared for potential patchy frost formation as temperatures flirt with freezing.

Looking ahead to Wednesday, New Hampshire will awaken to a beautiful, bright start.

Expect abundant sunshine greeting the morning, with temperatures making a pleasant rebound into the mid-50s to near 60 degrees by the afternoon. It will be a fantastic day to enjoy the lingering fall foliage, perhaps take a walk, or tackle outdoor chores. However, this delightful tranquility is merely a prelude to a significant shift in our weather pattern.

By Wednesday evening, clouds will begin to gather from the west, hinting at the moisture on its way.

Thursday looks to be a much different story. A low-pressure system is expected to track across the region, bringing widespread rain to New Hampshire throughout the day. The heaviest rainfall is anticipated during the late morning and early afternoon hours, making for a damp and breezy day. Temperatures will be cooler on Thursday, struggling to reach the low to mid-50s, and the persistent rain will make it feel even chillier.

The wet weather looks to linger into Friday morning for some areas, particularly in the eastern parts of the state, before gradually tapering off by the afternoon.

The skies will attempt to clear, but expect mostly cloudy conditions with a noticeable drop in temperatures, with highs only reaching the upper 40s to low 50s. The weekend, thankfully, offers a glimpse of improvement. Saturday appears to be a mixed bag of sun and clouds, feeling cool but dry, providing a much-needed respite from the mid-week rain.

Sunday could bring a slight chance of isolated showers, but overall, it's shaping up to be a calmer end to the week.

In summary, New Hampshire transitions from a serene, clear autumn evening into a mild Wednesday, before a midweek soaking on Thursday and Friday. While temperatures will fluctuate, the overall trend points towards cooler conditions as we head into the weekend.

Stay tuned to WMUR for the latest updates and detailed hourly forecasts to help you plan your week ahead.