• Today

    Apr 21

    71°Lo 43°

    Clouds breaking and warmer

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

    Apr 22

    67°Lo 44°

    Partly sunny

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

    Apr 23

    60°Lo 34°

    A morning shower; cooler

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

    Apr 24

    60°Lo 36°

    Sunshine and windy

    High indoor dust & dander levels
    • Precip
      5%
    • Wind
      Speed
      16 mph
    • Cloud
      Cover
      25%
    more
  • Fri

    Apr 25

    64°Lo 43°

    Partly sunny

    Moderate indoor dust & dander levels
    • Precip
      25%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      39%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 44° 44° 43° 43° 48° 52° 55° 60°
RealFeel® 43° 44° 43° 43° 49° 55° 60° 66°
Humidity 69% 71% 72% 72% 68% 60% 51% 44%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
0%
 
0%
 
0%
 
2%
 
7%
 
7%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 2 S 2 S 2 S 3 S 2 S 3 S 4 S 5 S
UV Index 0 0 0 0 1 2 3 4
Cloud Cover 25% 25% 25% 25% 70% 70% 69% 65%
Dew Point 34° 35° 35° 35° 38° 39° 38° 38°
Middle Grid line 65 F 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

Temperature History - Apr 22

more Historical Weather Data >
  Today Normal Record 4/22/2013
High 67° 61° N/A 52°
Low 44° 39° N/A 33°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:53 AM with 13:42 of sunlight, then sets at 7:35 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:50 AM with 10:33 of moolight, then sets at 12:23 PM

Top Story

Derry Weather Report

Boston: Milder Patriots' Day Follows Easter Cooldown

April 21, 2014; 4:57 AM 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?

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps