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Irishtown, IL Weather Forecast
Irishtown, IL Weather Forecast Date: 1002 PM CDT Thu Sep 10 2026
The area/counties/county of: Clinton County Il, including the cities of: Centralia and Salem.or toggle through each period.
Tonight... Mostly cloudy. A slight chance of showers this evening. Patchy fog after midnight. Lows in the upper 60s. North winds around 5 mph this evening, becoming light and variable. Chance of rain 20%.
Friday... Mostly cloudy. Patchy fog in the morning. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the lower 80s. Southeast winds around 5 mph. Chance of rain 40%.
Friday Night... Mostly cloudy in the evening, then becoming partly cloudy. A 20% chance of showers. Lows in the upper 60s. Light and variable winds.
Saturday... Mostly sunny. Humid with highs in the upper 80s. Southwest winds around 5 mph.
Saturday Night... Mostly clear. Lows in the upper 60s. Light and variable winds.
Sunday... Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20%.
Sunday Night... Partly cloudy. Lows in the mid 60s.
Monday... Mostly clear. Highs in the upper 80s. Lows in the upper 60s.
Monday Night... Mostly clear. Highs in the upper 80s. Lows in the upper 60s.
Tuesday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20%. Heat index values up to 100 in the afternoon.
Tuesday Night... A slight chance of thunderstorms in the evening. Mostly clear with a chance of showers. Lows in the upper 60s. Chance of rain 40%.
Wednesday... Mostly sunny with a 40% chance of showers. Highs in the upper 80s.
Wednesday Night... A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40%.
POP = Probability of Precipitation
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