• Today

    Sep 18

    71°Lo 43°

    Clouds and sun

    Excellent for driving
    • Precip
      25%
    • Hours of Precip
      0
    • Rain
      0 in
  • Fri

    Sep 19

    57°Lo 40°

    Mostly sunny and cooler

    Excellent for driving
    • Precip
      5%
    • Hours of Precip
      0
    • Rain
      0 in
    more
  • Sat

    Sep 20

    68°Lo 55°

    Warmer

    Excellent for driving
    • Precip
      8%
    • Hours of Precip
      0
    • Rain
      0 in
    more
  • Sun

    Sep 21

    76°Lo 56°

    Some sun, then clouds

    Excellent for driving
    • Precip
      25%
    • Hours of Precip
      0
    • Rain
      0 in
    more
  • Mon

    Sep 22

    69°Lo 45°

    Chance of a morning shower

    Excellent for driving
    • Precip
      30%
    • Hours of Precip
      0
    • Rain
      0 in
    more
Next Previous
Hi 71° RealFeel® 76° Precipitation 25%

Day

N

E

S

W

  • NW 5 mph
  • Gusts: 9 mph

Clouds and sun

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 4%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 43° RealFeel® 32° Precipitation 8%

Night

N

E

S

W

  • N 13 mph
  • Gusts: 29 mph

Clear and breezy

  • 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 - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 71° 72° 92° (1948) 74°
Low 43° 49° 30° (1959) 43°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 12:22 of sunlight, then sets at 6:48 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:09 AM with 14:33 of moolight, then sets at 3:42 PM

Top Story

Portsmouth Weather Report

Boston: Remainder of Week to Be Dry, Cool

September 18, 2014; 12:02 PM ET

Rainfall will be scarce around Boston this week, but cool air will be plentiful. more >

Travel Weather Forecast

Sep 18, 2014; 12:52 PM ET United States travel weather forecast

Thu. Travel Weather

48 Hour Precipitation Forecast

Thu. Driving Weather