| NWS Forecast for: Harbor Beach to Port Sanilac MI (LHZ442) Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 349 PM EDT Mon Jul 27 2026 | |
Tonight: Southwest winds 5 to 10 knots becoming north 10 to 15 knots early in the morning. Mostly cloudy. Showers likely and a chance of thunderstorms in the evening, then showers and a slight chance of thunderstorms after midnight. Waves 1 to 3 feet. Tuesday: North winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 30 knots in the late morning and afternoon. Mostly cloudy until late afternoon becoming partly cloudy. Waves 5 to 7 feet. Waves occasionally around 10 feet. Tuesday Night: North winds 20 to 25 knots. Gusts to 30 knots early in the evening. Partly cloudy. Waves 6 to 9 feet. Waves occasionally around 12 feet. Wednesday: North winds 20 to 25 knots with gusts to 30 knots. Sunny. Waves 5 to 7 feet. Waves occasionally around 10 feet. see lake huron open lake forecast for days 3 through 5. | |
| Zone Forecast: Harbor Beach to Port Sanilac MI (LHZ442) | |
Visit your local NWS office at: https://www.weather.gov/dtx |