Marine Weather Net

Portsmouth, NH Weather Forecast




Portsmouth, New Hampshire

 Lat: 43.07N, Lon: 70.76W

Current Conditions Updated: 755 PM EDT TUE JUN 23 2026

Overcast
Temp: 68°F
  • Humidity:
  • 86%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.81 in.
  • Dewpoint:
  • 64°F
  • Heat index:
  • 68°F

  • Sunrise:
  • 5:02 AM EDT
  • Sunset:
  • 8:25 PM EDT
  • Moonrise:
  • 2:48 PM EDT
  • Moonset:
  • 12:55 AM EDT

TONIGHT

CHANCE OF SHOWERS
Lo: 59°F
Precip: 20%

WEDNESDAY

MOSTLY SUNNY
Hi: 80°F
Lo: 59°F

THURSDAY

PARTLY SUNNY
Hi: 81°F
Lo: 61°F

FRIDAY

CHANCE OF T-STORM
Hi: 81°F
Lo: 61°F
Precip: 80%
Weather Forecast In Detail:
Forecast Issued: 718 PM EDT Tue Jun 23 2026

Tonight...Mostly cloudy. A slight chance of showers this evening. Areas of fog. Lows in the upper 50s. Light and variable winds. Chance of rain 20 percent.
Wednesday...Patchy fog in the morning. Mostly sunny. Highs around 80. Light and variable winds, becoming northwest around 10 mph in the afternoon.
Wednesday Night...Mostly clear. Lows in the upper 50s. Light and variable winds.
Thursday...Partly sunny. Highs in the lower 80s. Light and variable winds.
Thursday Night...Partly cloudy with a chance of showers in the evening, then mostly cloudy with showers after midnight. Lows in the lower 60s. Light and variable winds. Chance of rain 80 percent.
Friday...Showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 80 percent.
Friday Night...Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 60s. Chance of rain 50 percent.
Saturday...Partly sunny. Highs in the upper 70s.
Saturday Night...Partly cloudy. Lows around 60.
Sunday...Partly sunny. Highs in the lower 80s.
Sunday Night...Partly cloudy. Lows in the lower 60s.
Monday...Partly sunny. Highs in the lower 80s.
Monday Night...Partly cloudy. Lows in the lower 60s.
Tuesday...Partly sunny. Highs in the lower 80s.
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