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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 am edt fri jun 26 2026


slz022-024-262100-
saint lawrence river from cape vincent to saint regis
1003 am edt fri jun 26 2026

.this afternoon...southwest winds 10 knots or less becoming west.
a chance of showers and thunderstorms. 
.tonight...west winds less than 10 knots. a chance of showers and
thunderstorms early. areas of fog after midnight. 
.saturday...light and variable winds. areas of fog in the
morning. 
.saturday night...light and variable winds. becoming mainly
clear. 
.sunday...light and variable winds. mainly clear, then becoming
partly cloudy. 
.monday...light and variable winds. a chance of showers monday
night. 
.tuesday...south winds less than 10 knots. a chance of showers
and thunderstorms. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri jun 26 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a weak 29.9 inch low over the niagara peninsula will 
move to southern quebec today before passing across the canadian 
maritimes saturday. a 30.1 inch high will then build across the 
upper great lakes saturday, the lower great lakes sunday, and then 
southern quebec to new england by tuesday.


loz062-262100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri jun 26 2026

.rest of today...west winds 5 to 10 knots. patchy fog late this
morning. waves 1 foot or less. 
.tonight...west winds 5 to 10 knots becoming light and variable.
waves 1 foot or less. 
.saturday...light and variable winds becoming northeast 5 to
10 knots. waves 1 foot or less. 
.saturday night...east winds less than 10 knots. waves 1 foot or
less. 
.sunday...light and variable winds. waves 1 foot or less. 
.monday...east winds 10 knots or less becoming south. waves
1 foot or less. 
.tuesday...southwest winds 5 to 15 knots. a chance of showers
during the day, then a chance of showers and thunderstorms
tuesday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 261402
glflo 
expires:202606262100;;938776

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri jun 26 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a weak 29.9 inch low over the niagara peninsula will 
move to southern quebec today before passing across the canadian 
maritimes saturday. a 30.1 inch high will then build across the 
upper great lakes saturday, the lower great lakes sunday, and then 
southern quebec to new england by tuesday.


loz063>065-262100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri jun 26 2026

.rest of today...west winds 5 to 10 knots. waves 2 feet or less. 
.tonight...west winds 5 to 10 knots becoming light and variable.
waves 1 foot or less. 
.saturday...light and variable winds. waves 1 foot or less. 
.saturday night...north winds less than 10 knots becoming
northwest. waves 1 foot or less. 
.sunday...northwest winds less than 10 knots. waves 1 foot or
less. 
.monday...light and variable winds becoming south 5 to 10 knots.
waves 1 foot or less. 
.tuesday...south winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$