• Early AM

    Apr 20

    Lo 30°

    Clear

    Bicycling Weather
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      8 mph
    more
  • Today

    Apr 20

    60°Lo 31°

    Mostly sunny

    Very Good for biking
    • Precip
      6%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
  • Mon

    Apr 21

    71°Lo 41°

    Pleasant and warmer

    Excellent for biking
    • Precip
      6%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
    more
  • Tue

    Apr 22

    74°Lo 45°

    Some sun, then clouds

    Very Good for biking
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      13 mph
    more
  • Wed

    Apr 23

    60°Lo 32°

    Cooler with a passing shower

    Poor for biking
    • Precip
      55%
    • Hours of Precip
      1
    • Wind
      Gust
      25 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
3am
4am 5am 6am 7am 8am 9am 10am
  3am 4am 5am 6am 7am 8am 9am 10am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 34° 32° 32° 30° 31° 39° 43° 46°
RealFeel® 37° 34° 34° 31° 31° 40° 47° 51°
Humidity 65% 67% 69% 70% 65% 53% 44% 35%
   
  3am 4am 5am 6am 7am 8am 9am 10am
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%
   
  3am 4am 5am 6am 7am 8am 9am 10am
Wind (mph) 1 N 1 N 1 N 2 NNW 3 NNW 3 N 4 NNE 5 ENE
UV Index 0 0 0 0 0 1 2 4
Cloud Cover 18% 16% 14% 12% 11% 11% 11% 11%
Dew Point 24° 23° 23° 21° 20° 23° 23° 20°
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 60° 60° 87° (2004) 76°
Low 31° 35° 21° (1960) 39°

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 12:14 AM with 9:57 of moolight, then sets at 10:11 AM

Top Story

Merrimack Weather Report

Boston: Milder Patriots' Day Follows Easter Cooldown

April 19, 2014; 8:41 PM ET

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

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