• Tonight

    May 21

    Lo 55°

    An evening thunderstorm

    Asthma Weather
    • Hi
      RealFeel
      74°
    • UV
      7 - High
    • Air Qual.
      Good
    more
  • Wed

    May 22

    70°Lo 61°

    Variably cloudy, a t-storm

    At Risk weather for asthma
    • Hi
      RealFeel
      68°
    • UV
      2 - Low
    • Air Qual.
      Good
  • Thu

    May 23

    68°Lo 61°

    Variably cloudy, a t-storm

    At High Risk weather for asthma
    • Hi
      RealFeel
      64°
    • UV
      2 - Low
    • Air Qual.
      Good
    more
  • Fri

    May 24

    68°Lo 51°

    Occasional rain

    At Risk weather for asthma
    • Hi
      RealFeel
      68°
    • UV
      4 - Moderate
    • Cloud
      Cover
      76%
    more
  • Sat

    May 25

    60°Lo 49°

    Partly sunny with a shower

    Beneficial weather for asthma
    • Hi
      RealFeel
      64°
    • UV
      6 - High
    • Cloud
      Cover
      45%
    more
Next Previous
Hi 70° RealFeel® 68° Precipitation 55%

Day

N

E

S

W

  • SW 11 mph
  • Gusts: 20 mph

Variably cloudy with a shower or thunderstorm around

  • Max UV Index: 2 (Low)
  • Thunderstorms: 40%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 61° RealFeel® 54° Precipitation 40%

Night

N

E

S

W

  • SW 14 mph
  • Gusts: 20 mph

A shower or thunderstorm in spots in the evening; otherwise, mostly cloudy, breezy and mild

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - May 22

more Historical Weather Data >
  Today Normal Record 5/22/2012
High 70° 64° 86° (1996) 64°
Low 61° 49° 34° (1965) 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:16 AM with 14:44 of sunlight, then sets at 8:00 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:17 PM with 10:41 of moolight, then sets at 3:58 AM

Top Story

Hyannis Weather Report

Severe Storms to Reach DC, NYC, Albany Thursday

May 21, 2013; 5:20 PM ET

The same storm system responsible for producing violent thunderstorms in Oklahoma recently will reach the Atlantic Seaboard Thursday. more >

Smoke Alert: The Hidden Dangers of E-Cigarettes

May 20, 2013; 5:00 AM ET E-cigarette manufacturers claim the devices can help a person quit smoking but have those claims ever been proven?

Wed. Air Quality

Wed. Asthma Risk

Wed. UV Index