---- — The frigid arctic air returned to the Merrimack Valley and southern New Hampshire yesterday after a mild Monday that saw daytime temperatures hit close to 60 throughout the region.
The temperatures hovered around the low teens yesterday and were expected to drop to a low of around 4 overnight with a wind chill as low as minus 10. It’s the dangerous kind of weather that raises health concerns — frost bite and hypothermia — and more worries about Black ice and car breakdowns on roadways and bursting water pipes at home.
“A very frigid, arctic air mass will continue to bring dangerous, and in some cases life-threatening, low temperatures and wind chills to parts of the central and eastern U.S.,” the National Weather Service noted yesterday.
“Wind Chill Advisories and Warnings are in effect for much of the eastern two-thirds of the nation with wind chill values as low as minus 20 to minus 50 possible.
The Weather Service was forecasting more cold weather for today, with temperatures reaching a high of around 20 and an overnight low of around 10.
Slightly warmer, but still cold day temperatures are expected for tomorrow with a high of 28 and an overnight low of around 15.
Friday’s forecast calls for a high of 34 and a low of 25.
But the cold temperatures that would normally provide a compelling home field advantage for quarterback Tom Brady and the New England Patriots in their Saturday night playoff game in Foxboro against the Indianapolis Colts may not be much of a factor at game time.
There is a 60 percent chance of rain or snow showers during the day and night, with a high temperature of 46 and a low temperature of around 37. That mild weather is expected to continue through the weekend and into Monday. Sunday should be mostly sunny with a high near 47, dropping to a low of 32 Sunday night.
Monday’s high is expected to reach 47 degrees with a 40 percent chance of showers. The overnight low will be around 34.
The Weather Service is calling for more mild weather on Tuesday, with a high near 43.