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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 30
Apr		07:00

NNW
NNW

 14 / 22 mph 56 / 52°F 70% 1013 mb
Low level cloud: 0%
Mid level cloud: 69%
High level cloud: 81%
Most Significant Cloud Type: medium
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NW
NW

 14 / 19 mph 60 / 56°F 51% 1014 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

NW
NW

 12 / 21 mph 64 / 63°F 40% 1014 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
16:00

NW
NW

 11 / 20 mph 64 / 63°F 39% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: high
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NW
NW

 9 / 17 mph 58 / 55°F 57% 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
22:00

NNW
NNW

 8 / 16 mph 52 / 49°F 62% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 01
May		01:00

NNE
NNE

 8 / 16 mph 48 / 44°F 67% 1020 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NE
NE

 6 / 13 mph 46 / 43°F 67% 1021 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ENE
ENE

 4 / 5 mph 52 / 50°F 57% 1023 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 3%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SE
SE

 6 / 7 mph 58 / 55°F 51% 1023 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 8%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSE
SSE

 9 / 10 mph 59 / 56°F 53% 1021 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 3%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SSE
SSE

 9 / 10 mph 58 / 55°F 56% 1019 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 6%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSE
SSE

 9 / 15 mph 53 / 48°F 73% 1019 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 21%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

 7 / 13 mph 51 / 48°F 82% 1019 mb
Low level cloud: 6%
Mid level cloud: 28%
High level cloud: 98%
Most Significant Cloud Type: medium
50%
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 17°C, with a high for the week of 21°C expected on the afternoon of Friday 2nd. The mean minimum temperature will be 9°C, dipping to its lowest on the morning of Tuesday 6th at 6°C. Expect the coming week to have mostly dry days although Saturday is likely to see a significant amount of rain. Current predictions suggest Saturday 6th will have the most precipitation with an accumulation of around 9.0mm. 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