Portsmouth, NH Weather - Tomorrow’s Forecast

Sunday

Clouds clearing

High:
28°F

Cloudy, then gradually becoming mostly sunny, with a high near 28. Calm wind becoming northwest around 5 mph in the afternoon.

Sunday Night

Mostly clear

Overnight low:
4°F

Mostly clear, with a low around 4. Wind chill values as low as -3. Northwest wind around 5 mph.