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Groton Weather Forecast

Temperature, wind, rain and more for Groton

Connecticut, United States Of America

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 10
Sep		13:00

ENE
ENE

 13 / 15 mph 77 / 79°F 67% 1021 mb
Low level cloud: 84%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ENE
ENE

 11 / 13 mph 79 / 79°F 66% 1019 mb
Low level cloud: 46%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NE
NE

 12 / 19 mph 64 / 64°F 72% 1019 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 51%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNE
NNE

 11 / 21 mph 58 / 55°F 80% 1019 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 11
Sep		01:00

N
N

 10 / 20 mph 56 / 54°F 74% 1018 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

N
N

 9 / 18 mph 55 / 53°F 71% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

N
N

 6 / 11 mph 59 / 57°F 69% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNW
NNW

 4 / 5 mph 77 / 77°F 48% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

 4 / 4 mph 81 / 80°F 48% 1018 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 9%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

S
S

 5 / 6 mph 81 / 80°F 54% 1018 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 32%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSE
SSE

 7 / 14 mph 67 / 66°F 73% 1019 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 32%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 3 / 6 mph 65 / 65°F 74% 1020 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for Groton:

Reviewing the forecast for Groton Over the next 7 days and the average daytime maximum temperature will be around 26°C, with a high for the week of 29°C expected on the afternoon of Wednesday 17th. The mean minimum temperature will be 15°C, dipping to its lowest on the morning of Thursday 11th at 12°C. Expect the next week to have mostly dry days although Sunday is likely to see a little rain. It looks like Sunday 11th will have the most precipitation with an accumulation of around 4.0mm. On the whole winds are likely to be moderate.

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure