⛈ Boating Conditions
⛈ 7-Day Forecast
St. Catherines
📊 Source:
National Weather Service
— weather.gov
For informational purposes only — verify conditions before departure.
Forecast retrieved June 23, 2026 10:09 AM
Today
92°F
Wind: 12 to 17 mph W
Gusts: —
A slight chance of showers and thunderstorms between 3pm and 5pm. Mostly sunny, with a high near 92. Heat index values as high as 103. West wind 12 to 17 mph. Chance of precipitation is 20%.
💧 15% precip.
Tonight
73°F
Wind: 5 to 14 mph W
Gusts: —
Partly cloudy, with a low around 73. West wind 5 to 14 mph.
💧 8% precip.
Wednesday
88°F
Wind: 3 to 8 mph N
Gusts: —
Sunny, with a high near 88. North wind 3 to 8 mph.
Wednesday Night
77°F
Wind: 1 to 8 mph SE
Gusts: —
Mostly clear, with a low around 77. Southeast wind 1 to 8 mph.
Thursday
88°F
Wind: 1 to 9 mph E
Gusts: —
Sunny, with a high near 88. East wind 1 to 9 mph.
💧 5% precip.
Thursday Night
77°F
Wind: 3 to 8 mph SE
Gusts: —
Mostly clear, with a low around 77.
💧 5% precip.
Friday
91°F
Wind: 2 to 12 mph S
Gusts: —
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Chance of precipitation is 20%.
💧 15% precip.
Friday Night
77°F
Wind: 6 to 12 mph S
Gusts: —
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77. Chance of precipitation is 20%.
💧 15% precip.
Saturday
93°F
Wind: 5 to 12 mph SW
Gusts: —
Sunny, with a high near 93.
💧 11% precip.
Saturday Night
78°F
Wind: 6 to 12 mph SW
Gusts: —
Mostly clear, with a low around 78.
💧 9% precip.
Sunday
94°F
Wind: 5 to 9 mph SW
Gusts: —
Sunny, with a high near 94.
💧 9% precip.
Sunday Night
79°F
Wind: 3 to 9 mph SW
Gusts: —
A slight chance of showers and thunderstorms between 8pm and 2am. Mostly clear, with a low around 79. Chance of precipitation is 20%.
💧 19% precip.
Monday
94°F
Wind: 3 to 8 mph S
Gusts: —
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Chance of precipitation is 20%.
💧 24% precip.
Monday Night
79°F
Wind: 2 to 8 mph S
Gusts: —
A slight chance of showers and thunderstorms before 2am. Mostly clear, with a low around 79. Chance of precipitation is 20%.
💧 24% precip.