Portsmouth, NH Weather - Tomorrow’s Forecast

Saturday

Sunny

High:
20°F

Sunny, with a high near 20. Wind chill values as low as -12. West wind around 5 mph becoming calm in the morning.

Saturday Night

Mostly cloudy

Overnight low:
6°F

Mostly cloudy, with a low around 6. Wind chill values as low as -7. Light northwest wind becoming north 5 to 10 mph after midnight.