• Today

    May 21

    54°Lo 36°

    Cooler with periods of rain

    Poor for hiking
    • Precip
      67%
    • Hi
      RealFeel
      57°
    • Hours of Precip
      4
  • Wed

    May 22

    47°Lo 34°

    Mostly cloudy, showers around

    Poor for hiking
    • Precip
      66%
    • Hi
      RealFeel
      49°
    • Hours of Precip
      3
    more
  • Thu

    May 23

    58°Lo 38°

    Cloudy with spotty showers

    Poor for hiking
    • Precip
      60%
    • Hi
      RealFeel
      61°
    • Hours of Precip
      1.5
    more
  • Fri

    May 24

    57°Lo 39°

    A shower possible

    Very Good for hiking
    • Precip
      30%
    • Hi
      RealFeel
      62°
    • Hours of Precip
      0
    more
  • Sat

    May 25

    64°Lo 40°

    Warmer with a passing shower

    Good for hiking
    • Precip
      55%
    • Hi
      RealFeel
      71°
    • Hours of Precip
      1
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Showers
Partly Sunny
Partly Sunny
Rain
Cloudy
Rain
Rain
Rain
Temp (°F) 44° 43° 46° 48° 49° 50° 51° 53°
RealFeel® 43° 42° 45° 47° 49° 50° 52° 55°
Humidity 89% 93% 83% 84% 79% 75% 70% 70%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
54%
 
49%
 
49%
 
64%
 
49%
 
64%
 
61%
 
61%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 3 W 3 W 4 WNW 3 WSW 4 W 4 W 5 WNW 5 WNW
UV Index 0 0 1 0 1 1 2 2
Cloud Cover 92% 43% 35% 98% 96% 91% 90% 89%
Dew Point 41° 41° 41° 43° 43° 42° 42° 44°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - May 21

more Historical Weather Data >
  Today Normal Record 5/21/2012
High 54° 54° N/A 50°
Low 36° 38° N/A 42°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:22 AM with 15:19 of sunlight, then sets at 8:41 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:48 PM with 10:51 of moolight, then sets at 3:39 AM

Breaking Weather: Airport Delays in Boston

May 21, 2013; 8:07 AM ET Dense fog along the Massachusetts coast is causing problems for morning travelers.