• Tonight

    Apr 18

    Lo 42°

    Clearing and breezy

    Arthritis Pain Weather
    • Rain
      0 in
    • Hours of Precip
      0
    • UV
      6 - High
  • Sun

    Apr 19

    50°Lo 38°

    Mostly sunny and colder

    Beneficial weather for arthritis pain
    • Rain
      0 in
    • Hours of Precip
      0
    • UV
      6 - High
    more
  • Mon

    Apr 20

    51°Lo 47°

    Breezy with periods of rain

    At Risk weather for arthritis pain
    • Rain
      0.79 in
    • Hours of Precip
      12
    • UV
      2 - Low
    more
  • Tue

    Apr 21

    55°Lo 43°

    A passing shower or two

    At Extreme Risk weather for arthritis pain
    • Rain
      0.08 in
    • Hours of Precip
      2
    • UV
      4 - Moderate
    more
  • Wed

    Apr 22

    54°Lo 42°

    Plenty of sun

    Beneficial weather for arthritis pain
    • Rain
      0.02 in
    • Hours of Precip
      1
    • UV
      7 - High
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
6pm
7pm 8pm 9pm 10pm 11pm Sun
12am
1am
  6pm 7pm 8pm 9pm 10pm 11pm 12am 1am
Forecast
Sunny
Cloudy
Cloudy
Mostly Cloudy
Cloudy
Cloudy
Partly Cloudy
Mostly Clear
Temp (°F) 53° 50° 51° 49° 48° 47° 46° 46°
RealFeel® 48° 46° 49° 46° 42° 37° 35° 34°
Humidity 74% 80% 77% 77% 79% 79% 78% 78%
   
  6pm 7pm 8pm 9pm 10pm 11pm 12am 1am
Rain
 
7%
 
6%
 
5%
 
5%
 
5%
 
5%
 
5%
 
3%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  6pm 7pm 8pm 9pm 10pm 11pm 12am 1am
Wind (mph) 13 SW 8 SW 6 WNW 7 WNW 10 WNW 16 WNW 18 W 20 WNW
UV Index 1 0 0 0 0 0 0 0
Cloud Cover 0% 100% 100% 83% 67% 55% 40% 29%
Dew Point 45° 44° 44° 43° 42° 41° 40° 39°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2014
High 62° 51° N/A 43°
Low 42° 40° N/A 37°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:56 AM with 13:28 of sunlight, then sets at 7:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:54 AM with 13:34 of moolight, then sets at 7:28 PM

Chatham Weather Report

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

April 18, 2015; 8:16 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 >

Sat. Arthritis Pain

Sat. UV Index