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Jay County, IN Weather Forecast
Jay County, IN Weather Forecast Date: 543 AM EST Sat Mar 07 2026
The area/counties/county of: Jay, including the cities of: Portland and Dunkirk.or toggle through each period.
Today... A chance of thunderstorms. Showers. Near steady temperature in the mid 60s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 90%.
Tonight... Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Much cooler with lows in the upper 30s. West winds 10 to 15 mph. Gusts up to 30 mph, Decreasing to 20 mph after midnight. Chance of rain 40%.
Sunday... Mostly sunny. Highs in the upper 50s. West winds 10 to 15 mph with gusts up to 25 mph.
Sunday Night... Clear. Lows in the lower 40s. Southwest winds around 10 mph with gusts up to 20 mph.
Monday... Sunny. Highs around 70. Southwest winds 15 to 20 mph with gusts up to 30 mph.
Monday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
Tuesday... Mostly cloudy in the morning, then partly cloudy with a chance of rain with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40%.
Tuesday Night... Rain. A chance of thunderstorms, mainly in the evening. Lows in the mid 50s. Chance of rain 90%.
Wednesday... A slight chance of thunderstorms. Rain, breezy with highs in the mid 60s. Chance of rain 90%.
Wednesday Night... Cloudy. A chance of rain and snow in the evening. Much cooler with lows around 30. Chance of precipitation 30%.
Thursday... Partly cloudy in the morning, then clearing. Much cooler with highs in the mid 40s.
Thursday Night... Mostly clear in the evening, then mostly cloudy with a slight chance of rain and snow after midnight. Lows in the lower 30s. Chance of precipitation 20%.
POP = Probability of Precipitation
Jay County Radar Loop
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