County Forecast for Marion , OH
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180500-
Marion-
Including the city of Marion
1203 PM EDT Mon Aug 17 2026

This afternoon   Mostly cloudy with a chance of showers and thunderstorms. Highs around 80. North winds 5 to 10 mph. Chance of rain 50 percent.
Tonight   Partly cloudy in the evening, then becoming mostly cloudy. Patchy fog after midnight. Humid with lows in the upper 50s. North winds 5 to 10 mph.
Tuesday   Patchy fog in the morning. Mostly sunny. Highs in the upper 70s. Northwest winds around 5 mph.
Tuesday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Southwest winds around 5 mph.
Wednesday   Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely in the afternoon. Humid with highs in the upper 70s. West winds 5 to 10 mph. Chance of rain 60 percent.
Wednesday night   Mostly cloudy. Showers likely with a chance of thunderstorms in the evening. Lows around 60. Chance of rain 60 percent.
Thursday   Partly cloudy. Highs in the upper 70s.
Thursday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
Friday   Mostly sunny. Highs in the upper 70s.
Friday night   Mostly clear. Lows in the mid 50s.
Saturday   Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s.
Saturday night   Partly cloudy. Lows in the upper 50s.
Sunday   Partly cloudy. Highs in the mid 70s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Two Fronts to Continue Tuesday
Posted at 12:43PM Mon Aug 17, 2026 CDT
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