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Olney, IL 7-Day Weather Forecast
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Olney Weather Forecast
Olney, IL Weather Forecast Date: 838 PM CST Tue Mar 03 2026
Weather forecast for Olney, IL
Tonight Lo: 50°F Lo: 10°C |
Tonight... A chance of thunderstorms. Showers likely. Patchy fog. Not as cool. Near steady temperature in the lower 50s. Northeast winds around 5 mph. Chance of rain 70%. |
Wed Hi: 65°FHi: 18°C Lo: 59°F Lo: 15°C |
Wednesday... A chance of thunderstorms. Showers. Highs in the mid 60s. South winds 5 to 10 mph. Chance of rain 90%. |
| Thu Hi: 69°FHi: 21°C Lo: 59°F Lo: 15°C |
Thursday... Showers with a chance of thunderstorms in the morning, then showers likely in the afternoon. Highs in the upper 60s. Southwest winds 10 to 15 mph. Chance of rain 90%. |
| Fri Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Friday... Partly sunny. A chance of showers and thunderstorms in the morning. Not as cool with highs in the upper 70s. Chance of rain 40%. |
Sat Hi: 69°FHi: 21°C Lo: 45°F Lo: 7°C |
Saturday... Mostly cloudy. Showers, mainly in the morning. Highs in the upper 60s. Chance of rain 90%. |
Sun Hi: 65°FHi: 18°C Lo: 45°F Lo: 7°C |
Sunday... Partly cloudy. Lows in the mid 40s. Highs in the mid 60s. |
| Sun Hi: 65°FHi: 18°C Lo: 45°F Lo: 7°C |
Sunday... Partly cloudy. Lows in the mid 40s. Highs in the mid 60s. |
Mon Hi: 71°FHi: 22°C Lo: 59°F Lo: 15°C |
Monday... Sunny. Highs in the lower 70s. |
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