• Early AM

    Jul 29

    Lo 70°

    Mostly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Jul 29

    78°Lo 61°

    Heavy rain and a thunderstorm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Sat

    Jul 30

    87°Lo 66°

    Warmer with clouds and sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Jul 31

    77°Lo 66°

    Not as warm with showers

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Aug 1

    77°Lo 61°

    Showers around in the morning

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Next 8 hours >
  Fri
12am
1am 2am 3am 4am 5am 6am 7am
  12am 1am 2am 3am 4am 5am 6am 7am
Forecast
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 74° 73° 73° 72° 71° 70° 71° 71°
RealFeel® 75° 75° 74° 73° 72° 71° 72° 73°
Humidity 76% 77% 77% 79% 84% 89% 86% 87%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Rain
 
6%
 
5%
 
5%
 
5%
 
6%
 
7%
 
7%
 
5%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  12am 1am 2am 3am 4am 5am 6am 7am
Wind (mph) 4 SSW 4 SSW 4 SSW 4 SW 4 SW 2 SW 4 W 4 NNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 87% 88% 90% 93% 96% 100% 100% 100%
Dew Point 66° 66° 66° 65° 66° 66° 66° 67°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Jul 29

more Historical Weather Data >
  Today Normal Record 7/29/2015
High 78° 83° N/A 95°
Low 61° 62° N/A 68°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:35 AM with 14:35 of sunlight, then sets at 8:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:54 AM with 14:20 of moolight, then sets at 3:14 PM

Groton Weather Report

Torrential downpours in northeastern US to ease heat wave, raise flash flood risk

July 28, 2016; 11:02 PM ET

As July draws to a close, a storm system swinging up from the Deep South will bring downpours to the northeastern U.S. and break the back of an extended heat wave. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps