| NWS Forecast for: Mason County Issued by: National Weather Service Grand Rapids, MI Last Update: 412 AM EDT Sun Oct 18 2026 | |
| Early This Morning: Clear. Lows in the lower 40s. Southwest winds 5 to 15 mph with gusts to around 30 mph. Today: Sunny. Highs in the upper 50s. Southwest winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon. Gusts up to 40 mph. Tonight: Mostly clear. Lows in the mid 40s. Southwest winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph after midnight. Monday: Sunny. Highs in the lower 60s. Southwest winds around 10 mph. Gusts up to 20 mph in the morning. Monday Night: Partly cloudy. Lows in the mid 30s. Light winds. Tuesday: Sunny. Highs in the mid 60s. Light winds. Tuesday Night: Mostly clear. Lows in the upper 30s. Wednesday: Sunny. Highs in the mid 60s. Wednesday Night: Mostly clear. Lows in the lower 40s. Thursday: Partly sunny in the morning then clearing. Highs in the upper 60s. Thursday Night: Mostly clear. Lows in the lower 40s. Friday: Sunny. Highs in the upper 60s. Friday Night: Partly cloudy. Lows in the lower 40s. Saturday: Mostly sunny. Highs in the upper 60s. | |
| Zone Forecast: Mason County | |
Visit your local NWS office at: https://www.weather.gov/grr/ |