• Tonight

    Apr 20

    Lo 28°

    Partly cloudy and cold

    Dust & Dander Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Mon

    Apr 21

    69°Lo 36°

    Partly sunny and nice

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Tue

    Apr 22

    70°Lo 42°

    Showers in the afternoon

    Moderate indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Wed

    Apr 23

    56°Lo 27°

    Cooler with a passing shower

    Moderate indoor dust & dander levels
    • Precip
      55%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      70%
    more
  • Thu

    Apr 24

    59°Lo 31°

    Partly sunny and windy

    High indoor dust & dander levels
    • Precip
      3%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      26%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Cloudy
Cloudy
Partly Cloudy
Partly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 29° 29° 28° 33° 34° 41° 47° 55°
RealFeel® 31° 31° 30° 35° 38° 47° 54° 64°
Humidity 81% 83% 84% 81% 74% 60% 45% 33%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 1 SW 1 SW 1 SW 1 SW 1 SW 2 SSW 3 SSW 4 SSW
UV Index 0 0 0 0 1 2 4 5
Cloud Cover 70% 70% 59% 46% 26% 26% 26% 26%
Dew Point 24° 24° 23° 28° 27° 29° 27° 27°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 69° 61° N/A 52°
Low 36° 34° N/A 28°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:59 AM with 13:39 of sunlight, then sets at 7:38 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:09 AM with 10:11 of moolight, then sets at 11:20 AM

Top Story

Winchester Weather Report

Boston: Milder Patriots' Day Follows Easter Cooldown

April 20, 2014; 9:01 PM ET

After taking a tumble Easter Sunday, temperatures will quickly rebound in Boston for Patriots' Day. more >

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps