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Griffin, IN 7-Day Night Weather Forecast
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Griffin, IN Weather Forecast
Griffin, IN Weather Forecast Date: 833 PM CDT Thu Sep 10 2026
The area/counties/county of: Posey, including the city of Poseyville.or toggle through each period.
Tonight... Mostly cloudy. A chance of showers and thunderstorms, mainly this evening. Patchy fog after midnight. Lows in the upper 60s. Calm winds. Chance of rain 30%.
Friday... Mostly cloudy in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Northeast winds around 5 mph, becoming southeast in the afternoon. Chance of rain 20%.
Friday Night... Mostly cloudy. A chance of showers after midnight. Lows in the upper 60s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 40%.
Saturday... Mostly sunny. A chance of showers in the morning. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 40%.
Saturday Night... Mostly clear. Lows in the upper 60s. South winds around 5 mph in the evening, becoming light and variable.
Sunday... Mostly sunny. Highs in the lower 90s.
Sunday Night... Mostly clear. Lows in the upper 60s. Highs around 90.
Monday... Mostly clear. Lows in the upper 60s. Highs around 90.
Monday Night... Clear. Lows in the upper 60s.
Tuesday... Mostly clear. Highs in the lower 90s. Lows in the upper 60s.
Tuesday Night... Mostly clear. Highs in the lower 90s. Lows in the upper 60s.
Wednesday... Mostly sunny. A chance of showers in the afternoon. Highs in the lower 90s. Chance of rain 30%.
Wednesday Night... Partly cloudy with a 30% chance of showers. Lows in the upper 60s.
POP = Probability of Precipitation
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