Block Island, Rhode Island Weather Conditions

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Current Conditions

  • 62°
  • Clear
  • Wind: ESE 4 mph
  • Humidity: 93%
  • Visibility: 6.0 miles
  • Dew Point: 60°
  • Pressure: 29.89 in. -

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Next 12 Hours

6  am
9  am
12  pm
3  pm
6  pm
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
63°
71°
79°
81°
78°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Clear
  • High: 83 °
  • Low: 65 °
  • Clear
  • Thursday
  • Clear
  • High: 78 °
  • Low: 65 °
  • Clear
  • Friday
  • Partly Cloudy
  • High: 78 °
  • Low: 65 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 77 °
  • Low: 64 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 77 °
  • Low: 65 °
  • Partly Cloudy

Forecast for Block Island, Rhode Island

Updated: 4:15 am EDT on August 5, 2015

  • Today

    Sunny. Patchy fog this morning. Highs in the lower 80s. Southwest winds 5 to 10 mph.

  • Tonight

    Partly cloudy in the evening...then clearing. Lows in the mid 60s. Northwest winds 5 to 10 mph.

  • Thursday

    Sunny. Highs in the upper 70s. Northwest winds 5 to 10 mph...becoming west 10 to 15 mph in the afternoon.

  • Thursday Night

    Partly cloudy. Lows in the upper 60s. West winds 5 to 10 mph...becoming northwest after midnight.

  • Friday

    Partly sunny. Highs in the mid 70s. East winds 10 to 15 mph.

  • Friday Night and Saturday

    Mostly cloudy. Lows in the mid 60s. Highs in the mid 70s.

  • Saturday Night through Sunday Night

    Partly cloudy. Lows in the upper 60s. Highs in the mid 70s.

  • Monday through Tuesday

    Mostly cloudy with a 30 percent chance of showers. Highs in the mid 70s. Lows in the upper 60s.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 6:23 AM EDT

Temperature: 65.8 °F Dew Point: 64 °F Humidity: 93% Wind: South at 2.0 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: Block Island Jetty, New Shoreham, RI

Updated: 6:20 AM EDT

Temperature: 68.0 °F Dew Point: - Humidity: 88% Wind: North at - Pressure: 29.84 in Hourly Precipitation: - Graphs

Location: CC Block Island, New Shoreham, RI

Updated: 6:10 AM EDT

Temperature: 66.7 °F Dew Point: 62 °F Humidity: 85% Wind: NE at 2.2 mph Pressure: 29.75 in Hourly Precipitation: - Graphs

Location: Charlestown Beach, Charlestown, RI

Updated: 6:14 AM EDT

Temperature: 64.6 °F Dew Point: 64 °F Humidity: 99% Wind: Calm Pressure: 29.76 in Hourly Precipitation: - Graphs

Location: Pt. Judith, Narragansett, RI

Updated: 6:20 AM EDT

Temperature: 69.6 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.82 in Hourly Precipitation: - Graphs

Location: Roy Carpenter's Beach, Matunuck RI, South Kingstown, RI

Updated: 6:23 AM EDT

Temperature: 63.3 °F Dew Point: 48 °F Humidity: 58% Wind: NNW at 2.8 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: Jerusalem, Narragansett, RI

Updated: 6:23 AM EDT

Temperature: 70.0 °F Dew Point: 61 °F Humidity: 74% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Graphs

Location: Near Charlestown Beach, Charlestown, RI

Updated: 6:21 AM EDT

Temperature: 61.2 °F Dew Point: 61 °F Humidity: 100% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Graphs

Location: Snug Harbor, RI, Wakefield, RI

Updated: 6:23 AM EDT

Temperature: 64.3 °F Dew Point: 63 °F Humidity: 95% Wind: NW at 2.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: Daytona Avenue, Narragansett, RI

Updated: 6:20 AM EDT

Temperature: 59.9 °F Dew Point: 60 °F Humidity: 100% Wind: North at - Pressure: 29.73 in Hourly Precipitation: - Graphs

Location: Pasquiset Pond, Charlestown, RI

Updated: 6:17 AM EDT

Temperature: 61.0 °F Dew Point: 60 °F Humidity: 97% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.01 in Graphs

Location: APRSWXNET, Westerly, RI

Updated: 5:49 AM EDT

Temperature: 61 °F Dew Point: 60 °F Humidity: 96% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: Shannock Rd, Charlestown, RI

Updated: 6:23 AM EDT

Temperature: 61.3 °F Dew Point: 61 °F Humidity: 98% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: Stone Cove Marina, Wakefield, RI

Updated: 6:23 AM EDT

Temperature: 64.4 °F Dew Point: 64 °F Humidity: 99% Wind: Calm Pressure: 29.90 in Hourly Precipitation: - Graphs

Location: Congdon Street, Narragansett, RI

Updated: 6:21 AM EDT

Temperature: 62.2 °F Dew Point: 62 °F Humidity: 98% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Graphs

Location: Kenyon Avenue, South Kingstown, RI

Updated: 6:20 AM EDT

Temperature: 65.3 °F Dew Point: 64 °F Humidity: 95% Wind: North at - Pressure: 29.81 in Hourly Precipitation: - Graphs

Location: Westerly, Westerly, RI

Updated: 6:21 AM EDT

Temperature: 63.7 °F Dew Point: 62 °F Humidity: 94% Wind: North at - Pressure: 29.92 in Hourly Precipitation: - Graphs

Location: Rooftop, Narragansett, RI

Updated: 6:23 AM EDT

Temperature: 64.9 °F Dew Point: 63 °F Humidity: 95% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Graphs

Location: APRSWXNET, Pawcatuck, CT

Updated: 6:02 AM EDT

Temperature: 65 °F Dew Point: 62 °F Humidity: 90% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Graphs

Location: APRSWXNET, Wakefield, RI

Updated: 5:55 AM EDT

Temperature: 63 °F Dew Point: 62 °F Humidity: 98% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Graphs

Location: Deer Trail, Hopkinton, RI

Updated: 6:20 AM EDT

Temperature: 62.2 °F Dew Point: 59 °F Humidity: 89% Wind: North at - Pressure: 29.75 in Hourly Precipitation: - Graphs

Location: Beavertail, Jamestown, RI

Updated: 6:20 AM EDT

Temperature: 67.0 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.75 in Hourly Precipitation: - Graphs

Location: montauk, Montauk, NY

Updated: 6:23 AM EDT

Temperature: 69.3 °F Dew Point: 65 °F Humidity: 87% Wind: Calm Pressure: 29.53 in Hourly Precipitation: 0.00 in Graphs

Location: Beaver River Inn, Richmond, RI

Updated: 6:23 AM EDT

Temperature: 57.9 °F Dew Point: 58 °F Humidity: 99% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Graphs

Location: Bonnet Shores Beach Club, Narragansett, RI

Updated: 6:23 AM EDT

Temperature: 66.4 °F Dew Point: 64 °F Humidity: 92% Wind: NE at 2.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

Location: Walnut Street, Stonington, CT

Updated: 6:20 AM EDT

Temperature: 64.0 °F Dew Point: 61 °F Humidity: 90% Wind: North at - Pressure: 29.76 in Hourly Precipitation: - Graphs

Location: NOS_NWLON, Montauk, NY

Updated: 5:12 AM EDT

Temperature: 68 °F Dew Point: - Humidity: - Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 6:23 AM EDT

Temperature: 66.0 °F Dew Point: -23 °F Humidity: - Wind: SE at 4.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Taunton Massachusetts 
405 am EDT Wednesday Aug 5 2015 


Synopsis... 
a few showers or thundershowers are possible this 
afternoon...followed by drier weather into Thursday. A period of 
unsettled weather is possible Friday into this weekend...but 
confidence remains low regarding the timing and coverage of any 
potential wet weather. 


&& 


Near term /until 6 PM this evening/... 
convection continues within a band of higher Theta-E/lower static 
stability to the S of a weakening cold front currently situated 
near the S coast this morning. Bulk of the activity should remain 
outside of the box/okx coastal waters due to slight turning toward 
the lower stability further S. Even the cirrus/anvil remains offshore. 


Otherwise...with cyclonic flow continues across most of New 
England today with yet a final strong shortwave expected to move 
across the region during the late morning/afternoon hours. This is 
within a regime where 500 mb heights are generally 2-3 Standard deviations 
below normal and 500 mb temperatures drop between -13c and -15c. Drier air 
does continue to invade the column behind the exiting front...so 
this limits the lapse rates in spite of the cold temperatures aloft. 
Still...looks like enough diurnally driven afternoon instability 
to support some modest convective shra/T-storms. The cold temperatures 
suggest risk for small hail...but the drier air near the surface could 
support some gusty winds as well. Therefore...have added this 
wording to the forecast with this update. Highest risk will be 
north...where coldest temperatures and overall moisture resides...hence the 
marginal risk across northern New England. Therefore...focus is north of 
the Mass Pike...but risk is non-zero everywhere. With the dry 
air...not expecting activity to be as strong or widespread as 
Tuesday...but still Worth watching the skies through the day. 


Otherwise...temperatures remain warm today as the coldest air in the low 
levels still lags the front a bit. Expect highs mainly in the middle- 
upper 80s. 


&& 


Short term /6 PM this evening through 6 PM Thursday/... 
tonight... 
suspect any showers/storms will dissipate rather quickly after 
sunset...as it will require the surface warming to maintain. Suspect 
an end between 00z-02z. With skies clearing and surface pressure gradient 
weakening somewhat...temperatures are likely to cool into the 50s by the 
early morning hours. Certainly much more comfortable than previous 
nights. 


Thursday... 
weak ridge of high pressure will build across the region. In spite of 
last bit of cyclonic curvature aloft...suspect mainly dry 
conditions as best lift/moisture remains well to the north. 850 mb temperatures 
slightly below normal suggests highs below normal. Mainly the low 
80s. 


&& 


Long term /Thursday night through Tuesday/... 
highlights... 


* unsettled weather remains possible Friday into the weekend 
* temperatures trending below normal through most if not the entire 
period 


Overview and model preferences... 


Noting fairly good agreement with 12z operational models runs into 
Friday...then each GOES on their merry own way which lends to low 
confidence beyond Friday. One big question will be how the 500 mb cutoff 
low across Quebec and Maritimes flattens out...which also flattens 
out the flow across most of the northern stream. Depending upon 
whether this upper level system flattens out will determine how far 
S the large high pressure ridge builds out of central Canada. Also 
noting a stalled front S of the region which has a short wave moving 
along it...which could push some moisture into portions of southern 
New England. Another fly in the ointment is the possible 
amplification of long wave trough across the middle Atlantic region this 
weekend. 


Needless to say...low confidence forecast beyond Friday due to the 
wide variance of op model run solutions. Went along with most 
available guidance /except GFS/ through Friday...then transitioned 
over to an ensemble model blend similar to wpc guidance from 
Saturday Onward. 


Details... 


Thursday...high pressure builds out of central Canada into upstate 
New York. Weak short wave moves across northern New England and...with 
lack of available moisture in the general west-northwest flow...expect dry 
conditions. Highs look to run around 80 degrees...slightly below 
seasonal norms. 


Thursday night through Saturday...short wave moving along stalled 
front from the Ohio Valley. Could start to see some moisture moving 
NE into north CT/RI/se Massachusetts overnight Thursday night then push further north during 
Friday. Still a lot of question on how far this rain will push into the 
region...if at all. For now...kept continuity going from the 
previous forecast with mainly chance probability of precipitation...though low likely in 
place across S coastal areas Friday into Friday night. 


Have lowered probability of precipitation to chance for early Saturday then should push east 
during the afternoon into Sat evening. 


Sunday through Wednesday...much of this forecast continues to 
depend upon the Friday-Sat pattern sets up. At this point...looks like 
it should be mainly dry but cool on Sunday. Models signaling another 
500 mb long wave trough digging across eastern Great Lakes as 500 mb low 
trying to cut off again across Hudson Bay. May see periods of widely 
scattered showers from time to time during this timeframe...but low 
confidence on timing and placement. 


&& 


Aviation /07z Wednesday through Sunday/... 
forecaster confidence levels... 


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


Short-term /through Thursday/... 


Through 12z...high confidence. 
Mainly VFR and dry. A few low clouds/fog mainly cape/islands. 


Today...moderate confidence. 
Mainly VFR throughout the day...although some scattered rain showers/thunderstorms and rain with 
small hail and gusty winds are possible this afternoon. Not as 
widespread as yesterday. West winds with gusts approaching 20 knots at 
times. 


Tonight into Thursday...high confidence. 
Weak high pressure will slowly build across the region. Mainly VFR 
conditions expected. 


Kbos terminal...high confidence in taf...low confidence in a 
shower or storm this afternoon. 


Kbdl terminal...high confidence in taf. 


Outlook /Thursday night through Sunday/... 


Thursday night through Saturday...low confidence on timing...higher 
confidence on trends. MVFR-IFR conditions in areas of rain sometime 
during this period. VFR before and after periods of rain. 


Sunday...low confidence mainly for timing. May see leftover showers 
with brief MVFR conditions early...then VFR. 


&& 


Marine... 
forecaster confidence levels... 


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


Short-term /through Thursday/... 


Through today...moderate confidence. 
West winds generally remain below Small Craft Advisory conditions...with seas 
gradually receding through the morning. Small craft advisories 
remain in place through middle morning along S waters...but will 
likely be gone by middle day. A few showers or T-storms possible 
mainly near coastlines this afternoon. 


Tonight into Thursday...high confidence. 
Weak high pressure brings mainly quiet boating weather to the region. 


Outlook /Thursday night through Sunday/... 


Thursday night...high confidence. Winds and seas below small 
craft criteria. Locally reduced visibilities in light rain Thursday night. 


Friday through Sunday...moderate confidence. Easterly winds gusting 
up to 20 knots. With onshore winds...seas look to build up to 5-6 feet 
highest across the eastern outer waters. Rain likely Friday night 
through Saturday night...limiting visibilities at times...then 
should improve during Sunday. 


&& 


Box watches/warnings/advisories... 
CT...none. 
Massachusetts...none. 
Rhode Island...none. 
Marine...Small Craft Advisory until 11 am EDT this morning for anz235- 
237-254>256. 


&& 


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






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