| NWS Forecast for: Ionia County Issued by: National Weather Service Grand Rapids, MI Last Update: 222 PM EDT Tue Aug 18 2026 |  |
| Through Early Evening: Mostly cloudy. Highs in the lower 80s. West winds 10 to 15 mph with gusts to around 30 mph. Tonight: Showers and a chance of thunderstorms in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 60s. Southwest winds 5 to 15 mph. Gusts up to 30 mph decreasing to 20 mph after midnight. Chance of rain 90 percent. Wednesday: Mostly sunny. Highs in the upper 70s. Light winds becoming northwest 5 to 10 mph in the afternoon. Wednesday Night: Partly cloudy. Lows in the lower 50s. Northwest winds 5 to 10 mph in the evening becoming light. Thursday: Sunny. Highs around 80. Light winds. Thursday Night: Mostly clear. Lows in the mid 50s. Light winds. Friday: Mostly sunny in the morning then becoming partly sunny. A 20 percent chance of showers and thunderstorms. Highs in the lower 80s. Friday Night: Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows around 60. Chance of rain 40 percent. Saturday: Partly sunny in the morning then becoming mostly sunny. A 50 percent chance of showers and thunderstorms. Highs in the upper 70s. Saturday Night: Mostly clear. Lows in the mid 50s. Sunday: Sunny. Highs in the upper 70s. Sunday Night: Mostly clear. Lows in the lower 50s. Monday: Mostly sunny with a 20 percent chance of rain showers. Highs in the upper 70s. Monday Night: Partly cloudy with a 20 percent chance of rain showers. Lows in the mid 50s. Tuesday: Mostly sunny. Highs around 80. | |
| Zone Forecast: Ionia County | |
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