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O'Brien Field, IL 7-Day Night Weather Forecast
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O'Brien Field, IL Weather Forecast
O'Brien Field, IL Weather Forecast Date: 1227 PM CDT Wed Sep 16 2026
The area/counties/county of: Coles, including the cities of: Charleston and Mattoon.or toggle through each period.
This Afternoon... Partly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Southwest winds around 5 mph. Chance of rain 20%. Heat index values up to 100.
Tonight... Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Northeast winds around 5 mph, becoming south around 5 mph after midnight. Chance of rain 20%.
Thursday... Mostly sunny. Humid with highs in the lower 90s. West winds around 5 mph, becoming northwest in the afternoon. Heat index values up to 100.
Thursday Night... Partly cloudy. A chance of showers after midnight. Humid with lows in the upper 60s. North winds around 5 mph. Chance of rain 30%.
Friday... Mostly sunny. Highs in the upper 80s. East winds around 5 mph.
Friday Night... Partly cloudy. Lows in the upper 60s. Highs in the lower 90s.
Saturday... Partly cloudy. Lows in the upper 60s. Highs in the lower 90s.
Saturday Night... A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows around 70. Chance of rain 50%.
Sunday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. Highs in the upper 80s. Chance of rain 50%.
Sunday Night... Partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Chance of rain 30%.
Monday... Partly sunny. Highs in the mid 80s.
Monday Night... Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 30%.
POP = Probability of Precipitation
O'Brien Field Radar Loop
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