A storm system will pass SE of Cape Cod midday Saturday and another low will track NW of the region to provide a wintry mix of precipitation to New Hampshire with all snow in the mountains, and icy mix across the interior, and a mix to rain for southern New Hampshire, that may end as a period of snow. The heaviest precipitation will fall during the morning with the storm pulling away by mid to late afternoon, but snow showers will linger in the mountains.
For southern NH we will start the early morning off with a spotty freezing drizzle so untreated roads will be icy. Then, after daybreak we will be watching a snow/rain line advancing north thanks to warmer air moving in aloft. Snow will be changing to sleet, ice from Concord northward, but over the southwest part of the state any mixing looks to change to wet snow. From Manchester south and east it will primarily be rain. The mixing and rain will help to keep accumulations down for many locations. A deeper cold across the north country will make for some localized heavy snow in ski country! As the storm begins to move past Cape Cod winds will become more northerly during the midday causing any rain or mix in the south to end as period of snow. Everything looks to wind down by about 4pm as the storm pulls away.
Snow totals from the lake region northward look to be between 3-6" with 6-9" in the mountains. However, throughout the CT river valley 1-3" will do it as a result of shadowing from the higher terrain to the east along with the fact that you'll be further away from the heavier precipitation. Also the southwest corner of the state to Concord will end up with about 1-2" by late morning after the mixing earlier in the day. Again, Manchester to the seacoast really shouldn't see much more than a dusting of snow at the end. Stay tuned to the forecast for any future changes.
After everything is over Saturday evening, temperatures will drop below freezing going down into the 20s. Sunday will be a quiet day with partly sunny skies. Then Sunday night and Monday morning another very weak Low pressure system will race in from the Great Lakes bringing more light snow and snow showers as much colder air comes our way! Snowfall from that system could reach 1-2" with some spot 3 inch amounts in the mountains. After that cold dry conditions will continue for the rest of the week.
Rain will be ending at Foxboro. The tailgate will start off with a little rain in the morning, and remain damp into the afternoon. Dry, cloudy conditions are expected at kickoff with temperatures near 40. Cooling temps as clouds begin to break and clear during the game into the 30's.