• Tonight

    Apr 20

    Lo 30°

    Partly cloudy and chilly

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

    Apr 21

    70°Lo 40°

    Pleasant and warmer

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

    Apr 22

    73°Lo 45°

    A shower in the afternoon

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

    Apr 23

    59°Lo 31°

    Cooler with a passing shower

    Moderate indoor dust & dander levels
    • Precip
      55%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      71%
    more
  • Thu

    Apr 24

    60°Lo 35°

    Partly sunny and windy

    High indoor dust & dander levels
    • Precip
      2%
    • Wind
      Speed
      17 mph
    • Cloud
      Cover
      26%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9pm
10pm 11pm Mon
12am
1am 2am 3am 4am
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 46° 44° 40° 37° 36° 35° 33° 30°
RealFeel® 42° 42° 39° 37° 37° 35° 34° 31°
Humidity 44% 52% 59% 64% 68% 72% 76% 80%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
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%
 
0%
 
0%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 5 SSE 4 SSE 3 SSE 2 SSE 2 SSW 2 WSW 2 WSW 2 WSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 50% 47% 47% 46% 46% 46% 46% 46%
Dew Point 26° 27° 27° 26° 27° 27° 27° 25°
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 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 59° 60° N/A 65°
Low 30° 39° N/A 40°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:57 AM with 13:37 of sunlight, then sets at 7:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:15 AM with 9:56 of moolight, then sets at 10:11 AM

Top Story

Londonderry Weather Report

Boston: Milder Patriots' Day Follows Easter Cooldown

April 20, 2014; 7:01 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?

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps