Block Island, Rhode Island Weather Conditions

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Current Conditions

  • 73°
  • Clear
  • Wind: SE 7 mph
  • Humidity: 65%
  • Visibility: 10.0 miles
  • Dew Point: 61°
  • Pressure: 30.01 in. +

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Next 12 Hours

2  pm
5  pm
8  pm
11  pm
2  am
Clear
Clear
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
73°
72°
68°
63°
64°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Clear
  • High: 75 °
  • Low: 63 °
  • Clear
  • Thursday
  • Partly Cloudy
  • High: 73 °
  • Low: 63 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 73 °
  • Low: 61 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 72 °
  • Low: 61 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 75 °
  • Low: 61 °
  • Partly Cloudy

Forecast for Block Island, Rhode Island

Updated: 11:00 AM EDT on August 19, 2014

  • Wednesday

    Clear. High of 75F. Winds from the ENE at 5 to 10 mph shifting to the SE in the afternoon.

  • Wednesday Night

    Partly cloudy. Low of 63F. Winds from the East at 5 to 10 mph.

  • Thursday

    Partly cloudy. High of 73F. Winds from the ENE at 5 to 10 mph.

  • Thursday Night

    Partly cloudy in the evening, then overcast. Low of 63F. Winds from the ENE at 5 to 15 mph.

  • Friday

    Partly cloudy. High of 73F. Winds from the East at 10 to 15 mph.

  • Friday Night

    Partly cloudy with a chance of rain after midnight. Fog overnight. Low of 61F. Winds from the ENE at 10 to 15 mph.

  • Saturday

    Partly cloudy. High of 72F. Breezy. Winds from the ENE at 15 to 20 mph.

  • Saturday Night

    Partly cloudy. Fog overnight. Low of 61F. Winds from the ENE at 10 to 15 mph.

  • Sunday

    Partly cloudy. High of 75F. Winds from the ENE at 10 to 15 mph.

  • Sunday Night

    Clear. Low of 61F. Winds from the ENE at 5 to 15 mph.

  • Monday

    Partly cloudy. High of 72F. Winds from the NE at 5 to 10 mph shifting to the SSE in the afternoon.

  • Monday Night

    Clear. Fog overnight. Low of 63F. Winds from the SSW at 5 to 15 mph.

  • Tuesday

    Partly cloudy. High of 77F. Breezy. Winds from the SW at 15 to 20 mph.

  • Tuesday Night

    Clear. Low of 63F. Winds from the West at 5 to 20 mph.

  • Wednesday

    Partly cloudy. High of 75F. Winds less than 5 mph.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.

  • Thursday

    Partly cloudy with a chance of a thunderstorm. Fog early. High of 73F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday Night

    Clear with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds less than 5 mph. Chance of rain 40%.

  • Friday

    Clear with a chance of a thunderstorm. Fog early. High of 72F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Clear with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds less than 5 mph. Chance of rain 20%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Block Island Water Tower, New Shoreham, RI

Updated: 2:31 PM EDT

Temperature: 72.5 °F Dew Point: 102 °F Humidity: 255% Wind: SSW at 8.6 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Champlins Road - near Coast Guard, Block Island, RI

Updated: 2:31 PM EDT

Temperature: 74.6 °F Dew Point: 65 °F Humidity: 72% Wind: ENE at 7.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: West Beach Quonnie, Quonochontaug, RI

Updated: 2:23 PM EDT

Temperature: 74.2 °F Dew Point: 66 °F Humidity: 75% Wind: West at 5.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Quonnie, Charlestown, RI

Updated: 2:31 PM EDT

Temperature: 74.0 °F Dew Point: 65 °F Humidity: 73% Wind: West at 6.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Near Charlestown Beach, Charlestown, RI

Updated: 2:18 PM EDT

Temperature: 72.8 °F Dew Point: 69 °F Humidity: 87% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Snug Harbor, RI, Wakefield, RI

Updated: 2:31 PM EDT

Temperature: 73.8 °F Dew Point: 65 °F Humidity: 75% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Westerly, RI

Updated: 2:22 PM EDT

Temperature: 71.8 °F Dew Point: 65 °F Humidity: 79% Wind: ESE at 6.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Pasquiset Pond, Charlestown, RI

Updated: 2:26 PM EDT

Temperature: 74.0 °F Dew Point: 64 °F Humidity: 71% Wind: South at 2.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Shannock Rd, Charlestown, RI

Updated: 2:31 PM EDT

Temperature: 77.2 °F Dew Point: 66 °F Humidity: 69% Wind: SW at 1.3 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Stone Cove Marina, Wakefield, RI

Updated: 2:31 PM EDT

Temperature: 74.1 °F Dew Point: 63 °F Humidity: 69% Wind: SSE at 5.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Narragansett, Narragansett, RI

Updated: 2:18 PM EDT

Temperature: 73.5 °F Dew Point: 64 °F Humidity: 73% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Fishers Island, Fishers Islandd, NY

Updated: 2:18 PM EDT

Temperature: 75.3 °F Dew Point: 49 °F Humidity: 39% Wind: ESE at 2.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Bonnet Shores Beach Club, Narragansett, RI

Updated: 2:31 PM EDT

Temperature: 71.1 °F Dew Point: 66 °F Humidity: 83% Wind: South at 8.1 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: West Passage of Narragansett Bay, near Beavertail, Jamestown, RI

Updated: 2:31 PM EDT

Temperature: 72.0 °F Dew Point: -23 °F Humidity: - Wind: ESE at 12.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Montauk School, NY

Updated: 2:31 PM EDT

Temperature: 71.0 °F Dew Point: 62 °F Humidity: 74% Wind: East at 11.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Canonchet Woods, Hopkinton, RI

Updated: 2:30 PM EDT

Temperature: 80.8 °F Dew Point: 62 °F Humidity: 52% Wind: South at 2.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Masons Island Marina, Stonington, CT

Updated: 2:31 PM EDT

Temperature: 75.2 °F Dew Point: 62 °F Humidity: 64% Wind: SSE at 2.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Hawks Nest Point, Fishers Island, NY

Updated: 2:31 PM EDT

Temperature: 78.6 °F Dew Point: 66 °F Humidity: 64% Wind: South at 9.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Richmond, Richmond, RI

Updated: 2:31 PM EDT

Temperature: 78.3 °F Dew Point: 66 °F Humidity: 67% Wind: NE at 1.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Taunton Massachusetts 
204 PM EDT Wednesday Aug 20 2014 


Synopsis... 


Mainly dry weather...except maybe a shower in the west...with 
temperatures near or slightly below normal expected through the 
weekend. Pattern starts to become a bit more unsettled early next 
week with an approaching front. 


&& 


Near term /until 6 PM this evening/... 


2 PM update... 


Dry and quiet Weather. Ridge of high pressure from the east/NE 
resulting in light and variable winds. Sea-breezes progressing 
towards interior New England as a result of both the pressure and 
thermal gradient. Few to scattered clouds across the region... 
broken moreso over the Berkshires subsequent of higher Theta-E 
air wrapping ahead of the approaching closed low out of the Great 
Lakes region and converging along the higher terrain. 


Will keep with a dry forecast with a mix of sun and clouds. Highs 
into the low-80s across the interior with a few locales maxing out 
in the mid-80s...cooler conditions along the shoreline with sea- 
breezes. 


&& 


Short term /6 PM this evening through 6 PM Thursday/... 


Tonight... 


The approaching warm front and gradually opening upper level 
cutoff...combined with gradual moisture loading of the column is 
likely to lead to more cloud cover across the region than previous 
nights. Not out of the question a shower is able to slide across 
the west...but both jet and vorticity related dynamics are quite 
weak and overall column moisture remains fairly low until the 
early morning hours. Therefore...will maintain a mostly dry 
forecast except the extreme western fringes of the box County Warning Area through the 
overnight hours. 


Regarding temperatures...given the increased moisture /cloud 
cover/ and warmer evening temperatures expect that overnight lows 
will be warmer than previous nights in spite of the near calm flow 
once again. More widespread middle 50s with even some normal heat 
islands holding in the low-middle 60s are expected. 


Thursday... 


Inverted ridging remains in place...and mainly east-southeast flow expected 
across the region. The marine influence is likely to stave off 
approaching warm front as it/S attendant upper level cutoff 
diminishes to an open wave with cutoff high pressure to the north. Upper 
level and low level jets are weak and with overall vorticity 
decreasing...therefore dynamic forcing is relatively weak even as 
overall column moisture increases through the day /pwats approach 
1.75 inches/. Also...with marine flow and warm front trapped to 
the west...it/S unlikely that there will be much destabilization 
through the day. Given all of this...the threat for showery 
activity remains fairly low. Will focus only low chance probability of precipitation west of 
the CT valley...with slight chance probability of precipitation into the Worcester Hills. 
Convective activity should dive to the SW of the region where 
instability axis resides. Have kept thunder out of the forecast 
with this update due to the marine flow and modest lapse rates. 
The additional cloud cover and marine flow are also likely to keep 
high temperatures cooler than normal /mainly middle 70s/ during the day Thursday. 


&& 


Long term /Thursday night through Tuesday/... 


Highlights... 


* quiet weather expected through much of the long term 
* uncertainty increases early next week with an approaching front 


Rather unique and stable upper level pattern will slowly break down 
late this week into this weekend. 20/00z guidance remains in good 
agreement through this weekend...then more differences appear early 
next week. Will continue to favor a consensus blend to smooth over 
the more minor differences. 


High pressure in Quebec will keep things relatively dry across most 
of southern New England through this weekend. There is potential for 
a few showers across the western half of southern New England 
Thursday night if some moving parts come together. Moisture is the 
main limiting factor...with instability a close second once the sun 
sets. 


This high pressure will sink south through this weekend into early 
next week...eventually dropping south of southern New England and 
returning US to a more westerly flow. A low pressure in Ontario may 
eventually move eastward into Quebec...swinging a cold front through 
southern New England sometime Tuesday into Wednesday. Depending on 
available moisture...this front may initiate a few showers and 
thunderstorms. 


&& 


Aviation /18z Wednesday through Monday/... 


Forecaster confidence levels... 


Low...less than 30 percent. 
Moderate...30 to 60 percent. 
High...greater than 60 percent. 


Short term...through Thursday night...moderate confidence. 


VFR. Sea-breezes continue...becoming light/vrb overnight before 
prevailing east/southeast Thursday into Thursday night. Low-end VFR ceilings 
slowly building east along with -ra chances towards ijd-orh-afn. Will 
also need to watch southeast Massachusetts for potential +ra and MVFR-IFR impacts 
beginning after midnight Thursday. Conditions begin to improve 
closer to Friday morning. 


Kbos terminal...high confidence in taf. East/southeast flow prevails. Expect 
conditions no lower than low-end VFR ceilings. -Ra chances minimal. 


Kbdl terminal...high confidence in taf. -Ra chances begin towards 
Thursday morning along with low-end VFR ceilings. MVFR ceilings possible 
though low-confidence at this time. 


Outlook...Thursday night through Sunday... 


Moderate confidence. Mainly VFR. Low probability of patchy 
MVFR/IFR fog each night. 


&& 


Marine... 


Forecaster confidence levels... 


Low...less than 30 percent. 
Moderate...30 to 60 percent. 
High...greater than 60 percent. 


Short-term...through Thursday...high confidence. 


The mainly quiet boating weather continues. Winds remain mainly east 
to southeast with a few gusts around 15 knots possible especially across the 
outer edge of the S and southeast waters. 


Outlook...Thursday night through Sunday... 


Moderate to high confidence. Quiet boating weather is expected 
through much of this period with high pressure across the region. 
Low probability of patchy overnight fog limiting visibilities. Seas 
may increase on the outer waters this weekend as an ocean storm 
passes well east of the southern New England waters. Wna wave 
guidance looks to be too high based on expected winds...lowered this 
guidance by 20 percent. 


&& 


Box watches/warnings/advisories... 


CT...none. 
Massachusetts...none. 
New Hampshire...none. 
Rhode Island...none. 
Marine...none. 


&& 


$$ 


Synopsis...Belk/doody 
near term...sipprell 
short term...doody 
long term...Belk 
aviation...Belk/doody 
marine...Belk/doody 






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