• Today

    Aug 20

    79°Lo 56°

    Partly sunny

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

    Aug 21

    75°Lo 59°

    Intervals of clouds and sun

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

    Aug 22

    73°Lo 58°

    Some sun with a stray shower

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sat

    Aug 23

    72°Lo 58°

    Periods of sun with a shower

    Low ragweed pollen levels
    • Precip
      42%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      46%
    more
  • Sun

    Aug 24

    73°Lo 55°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      69%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 57° 56° 56° 58° 61° 65° 68° 71°
RealFeel® 56° 56° 55° 57° 61° 65° 70° 74°
Humidity 87% 88% 90% 88% 83% 74% 66% 58%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
1%
 
1%
 
1%
 
3%
 
6%
 
6%
 
6%
 
6%
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 ENE 2 NE 2 ENE 3 ENE 3 ENE 4 ENE 4 ENE 5 ENE
UV Index 0 0 0 0 1 2 3 4
Cloud Cover 79% 90% 93% 92% 70% 70% 70% 70%
Dew Point 53° 53° 53° 54° 56° 57° 56° 56°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 75° 80° N/A 87°
Low 59° 59° N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:58 AM with 13:39 of sunlight, then sets at 7:37 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:24 AM with 14:41 of moolight, then sets at 5:05 PM

Top Story

Watertown Weather Report

Heavy Rain to Avoid Boston Through Weekend

August 20, 2014; 3:13 AM ET

A wedge of dry air will slowly erode later this week and may allow spotty showers to survive the trip into Boston from the Midwest. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps