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Somerville Weather Forecast

Temperature, wind, rain and more for Somerville

Massachusetts, United States Of America

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Mon 12
May		13:00

WSW
WSW

 13 / 15 mph 73 / 74°F 28% 1022 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 12 / 16 mph 74 / 76°F 39% 1020 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

 12 / 16 mph 67 / 65°F 52% 1020 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

 9 / 15 mph 61 / 61°F 56% 1021 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 13
May		01:00

NNW
NNW

 4 / 6 mph 59 / 59°F 71% 1021 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NE
NE

 4 / 9 mph 56 / 56°F 74% 1023 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ENE
ENE

 10 / 12 mph 58 / 55°F 61% 1025 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 32%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

E
E

 11 / 12 mph 60 / 59°F 55% 1026 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 33%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

E
E

 10 / 11 mph 62 / 60°F 49% 1025 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 8%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 9 / 10 mph 60 / 57°F 54% 1025 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 98%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 6 / 7 mph 55 / 52°F 68% 1025 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ESE
ESE

 4 / 6 mph 51 / 50°F 76% 1025 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 61%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for Somerville:

The outlook for Somerville in the week ahead shows the average daytime maximum temperature will be around 23°C, with a high for the week of 29°C expected on the afternoon of Friday 16th. The average minimum temperature will be 12°C, dipping to its lowest on the morning of Monday 12th at 9°C. Expect the week ahead to have mixed overhead conditions with some days dry and some seeing a significant amount of rain. It looks like Friday 12th will have the most precipitation with an accumulation of around 7.0mm. On the whole winds are likely to be light.

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