• Today

    Oct 21

    61°Lo 48°

    Cloudy with a shower or two

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Wed

    Oct 22

    54°Lo 49°

    Windy and cooler with rain

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Thu

    Oct 23

    56°Lo 48°

    Windy with rain

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Oct 24

    58°Lo 45°

    Cloudy, a little rain; breezy

    Low ragweed pollen levels
    • Precip
      55%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      95%
    more
  • Sat

    Oct 25

    59°Lo 44°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      10%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      41%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 46° 46° 46° 45° 45° 45° 44° 47°
RealFeel® 45° 45° 46° 46° 45° 45° 44° 45°
Humidity 70% 74% 75% 80% 84% 84% 91% 85%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
10%
 
7%
 
7%
 
9%
 
11%
 
11%
 
14%
 
18%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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0%
 
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0%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 5 S 2 N 1 N 1 N 1 N 1 NNE 2 NE 4 N
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 94% 96% 94% 94% 95% 97% 91% 92%
Dew Point 37° 38° 38° 39° 40° 40° 41° 42°
Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Oct 21

more Historical Weather Data >
  Today Normal Record 10/21/2013
High 61° 59° N/A 66°
Low 48° 39° N/A 37°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:06 AM with 10:48 of sunlight, then sets at 5:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:44 AM with 12:04 of moolight, then sets at 4:48 PM

Derry Weather Report

Storm to Affect Boston This Week With Rain, Wind

October 21, 2014; 6:02 AM ET

A developing nor'easter will bring rain and wind to the Boston area during the middle and latter part of the week. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps