Dangerous Heat and Heavy Rainfall into the Weekend
Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >
| NWS Forecast for: Tidal Potomac from Cobb Island MD to Smith Point VA (ANZ537) Issued by: National Weather Service Baltimore, MD/Washington, D.C. Last Update: 226 AM EDT Sat Sep 19 2026 |  |
Overnight: NE winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Sat: NE winds 10 to 15 kt with gusts to 20 kt... Becoming E 5 to 10 kt late. Waves 1 to 2 ft. Sat Night: SE winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Sun: S winds 10 to 15 kt. Waves 1 ft. Sun Night: SW winds 5 to 10 kt. Waves 1 ft. A chance of showers. Mon: N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers. Mon Night: NE winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft. A chance of showers. Tue: NE winds 20 to 25 kt. Waves 3 ft...building to 5 ft. A chance of showers. Wed: NE winds 25 to 30 kt. Waves 5 ft. A chance of showers. | |
| Zone Forecast: Tidal Potomac from Cobb Island MD to Smith Point VA (ANZ537) | |
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