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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
Sat 07
Mar		16:00

SSW
SSW

 10 / 12 mph 48 / 43°F 98% 1018 mb
Low level cloud: 98%
Mid level cloud: 9%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

 10 / 13 mph 44 / 39°F 99% 1016 mb
Low level cloud: 96%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

 10 / 21 mph 41 / 34°F 100% 1013 mb
Low level cloud: 99%
Mid level cloud: 10%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 08
Mar		01:00

SW
SW

 15 / 20 mph 49 / 43°F 100% 1010 mb
Low level cloud: 96%
Mid level cloud: 20%
High level cloud: 7%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

 13 / 27 mph 41 / 34°F 100% 1008 mb
Low level cloud: 97%
Mid level cloud: 33%
High level cloud: 22%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SW
SW

 11 / 22 mph 41 / 35°F 100% 1008 mb
Low level cloud: 97%
Mid level cloud: 24%
High level cloud: 82%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

 9 / 18 mph 50 / 46°F 100% 1009 mb
Low level cloud: 90%
Mid level cloud: 32%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

 9 / 14 mph 54 / 51°F 98% 1008 mb
Low level cloud: 58%
Mid level cloud: 100%
High level cloud: 92%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 8 / 14 mph 53 / 50°F 98% 1009 mb
Low level cloud: 82%
Mid level cloud: 19%
High level cloud: 26%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

 5 / 11 mph 42 / 39°F 99% 1011 mb
Low level cloud: 5%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

 9 / 18 mph 42 / 37°F 98% 1013 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
The 7 day weather forecast summary for Groton:

The forecast for Groton in the coming week is predicting the average daytime maximum temperature will be around 10°C, with a high for the week of 15°C expected on the morning of Thursday 12th. The average minimum temperature will be 3°C, dipping to its lowest on the evening of Thursday 12th at -2°C. Expect the coming week to have mixed weather with some days dry and some seeing a little rain or sleet. Predictions are Thursday 12th will have the most precipitation with an accumulation of around 2.0mm. On the whole winds are likely to be moderate. Expect the strongest wind on Thursday afternoon, coming from a westerly direction, and reaching around 29mph.

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