Manchester, NH – Storms and dense fog may create dangerous driving conditions along I-93 and Route 3 as early as Friday night, with more rain and thunderstorms looming through the weekend.
According to the National Weather Service in Gray, Maine, a round of scattered thunderstorms could reach the Manchester area late Friday, with a 20% chance of rain increasing dramatically by Saturday afternoon. Areas of dense fog are also expected to redevelop overnight into Saturday morning, cutting visibility along major travel routes and increasing the risk of delays.
Saturday’s high will climb to 73°F under humid, unstable air. Showers and thunderstorms are likely after 2 p.m., especially across southern and central Hillsborough County. Winds will shift from the south at 10 mph, potentially picking up near any thunderstorm activity. Drivers should remain alert for sudden downpours and fog, especially along elevated stretches of I-93.
By Saturday night, scattered thunderstorms may linger before tapering off around midnight. Temperatures will fall to the mid-50s, with winds turning northwest. Sunday offers a slight reprieve, with drier weather expected after 9 a.m. and a high near 70°F.
Looking ahead, Monday brings calmer skies and a cool high of 63°F. Showers return Tuesday night and continue through Thursday, with daytime highs in the upper 50s and nighttime lows in the mid-40s.
Drivers should avoid unnecessary travel during Saturday’s peak storm hours and use headlights in low-visibility fog. More alerts may follow if storms intensify.