Severe Thunderstorms, Heavy Rainfall and Dangerous Heat
Severe thunderstorms are expected today and Friday from the upper Midwest, central Great Lakes into the Ohio and mid-Mississippi Valley's. In addition, heavy rainfall threat increases on Friday across the Ohio Valley. Meanwhile, early summer-like heat wave across portions of southern Texas with new daily records are forecast today and through the weekend; The heat spreads across the Gulf States. Read More >
| NWS Forecast for: St. Lawrence River above Ogdensburg NY (SLZ022) Issued by: National Weather Service Buffalo, NY Last Update: 1001 PM EDT Thu May 15 2025 | |
Overnight: Light and variable winds. Mostly cloudy. Friday: Southeast winds 10 knots or less becoming southwest. A chance of showers early, then showers with a chance of thunderstorms from late morning on. Friday Night: Southwest winds 10 knots or less becoming south. Showers likely with a chance of thunderstorms in the evening, then a chance of showers overnight. Saturday: Southeast winds 5 to 15 knots becoming southwest. Showers. Saturday Night: Southwest winds 5 to 15 knots. Showers. Sunday: Southwest winds 5 to 15 knots becoming northwest. Showers likely. Monday: Northwest winds 5 to 10 knots becoming north. A chance of showers during the day. Tuesday: North winds 10 knots or less. Mainly clear, then becoming partly cloudy. winds and waves higher in and near thunderstorms. | |
| Zone Forecast: St. Lawrence River above Ogdensburg NY (SLZ022) | |
Visit your local NWS office at: https://www.weather.gov/buf |