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  • Tonight

    Apr 18

    Partly cloudy Lo 40°
    more
  • Sun

    Apr 19

    Mostly sunny 54°Lo 38°
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  • Mon

    Apr 20

    Breezy with occasional rain 48°Lo 44°
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  • Tue

    Apr 21

    Warmer; rain in the morning 58°Lo 41°
  • Wed

    Apr 22

    Mainly cloudy 59°Lo 41°
    more
Clear 53° Lo 45° RealFeel® 50° / 41°

N

E

S

W

  • Precipitation: 21%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 72%
  • Cloud Cover: 23%
  • Dew Point: 40° F
  • Visibility: 9 mi
8 mph

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 58° 59° 92° (1941) 65°
Low 41° 36° 21° (1969) 30°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:52 AM with 13:40 of sunlight, then sets at 7:32 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:05 AM with 14:48 of moolight, then sets at 10:53 PM

Portsmouth Weather Report

2015 Boston Marathon Forecast: Rain and Wind in Store for Runners

April 18, 2015; 4:16 PM ET

The 119th Boston Marathon will take place on Monday, April 20, and runners set to take on the historic course will face cool and rainy conditions. more >