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    • Early AM

      Sep 29

      50° Lo
      Mostly cloudy
      • Home Energy Efficiency
      • Weather
      • Avg RealFeel: 48°
      • Hi RealFeel: 54°
      • Wind Speed: 12 mph
      More
    • Today

      Sep 29

      62° /50°F
      Mostly cloudy and windy
      • Poor
      • for home energy
      • Avg RealFeel: 50°
      • Hi RealFeel: 58°
      • Wind Speed: 15 mph
    • Fri

      Sep 30

      58° /52°
      A bit of afternoon rain
      • Poor
      • for home energy
      • Avg RealFeel: 48°
      • Hi RealFeel: 53°
      • Wind Speed: 14 mph
      More
    • Sat

      Oct 1

      58° /54°
      Cloudy with a touch of rain
      • Poor
      • for home energy
      • Avg RealFeel: 52°
      • Hi RealFeel: 55°
      • Wind Speed: 8 mph
      More
    • Sun

      Oct 2

      61° /53°
      Cloudy with a shower
      • Poor
      • for home energy
      • Avg RealFeel: 57°
      • Hi RealFeel: 60°
      • Wind Speed: 4 mph
      More

    Day

    62°Hi RealFeel® 58° Precipitation 17%
    Mostly cloudy and windy
    • NE 17 mph
    • Gusts: 25 mph
    • Max UV Index: 2 (Low)
    • Thunderstorms: 4%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    50°Lo RealFeel® 41° Precipitation 25%
    Mostly cloudy and breezy
    • NE 15 mph
    • Gusts: 21 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 62° 68° 86° (1952) 81°
    Low 50° 45° 27° (1980) 62°

    Sunrise/Sunset

    • Sunrise: 6:39 AM
    • Sunset: 6:27 PM
    • Duration: 11:48 hr

    Moonrise/Moonset

    • Moonrise: 5:09 AM
    • Moonset: 6:01 PM
    • Duration: 12:52 hr
    Astronomy

    Portsmouth Weather Report

    Persistent rain to raise flood risk in part of northeastern US late this week

    September 29, 2016; 12:55 AM ET

    Rain will spread over much of the northeastern U.S. into the weekend, but persistent downpours will raise the flood risk in part of the mid-Atlantic. More >

    Thu. Home Energy Efficiency

    Thu. Degree Days

    Thu. UV Index