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Petrolia, IL 7-Day Weather Forecast
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Petrolia Weather Forecast
Petrolia, IL Weather Forecast Date: 902 PM CDT Fri Oct 16 2026
Weather forecast for Petrolia, IL
Tonight Lo: 41°F Lo: 5°C |
Tonight... Mostly cloudy with a slight chance of showers late this evening, then partly cloudy. Cooler with lows in the lower 40s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20%. |
Sat Hi: 59°FHi: 15°C Lo: 31°F Lo: -1°C |
Saturday... Sunny. Highs in the upper 50s. North winds 10 to 15 mph. |
| Sun Hi: 65°FHi: 18°C Lo: 39°F Lo: 4°C |
Sunday... Widespread frost in the morning. Sunny. Highs in the mid 60s. Southeast winds around 5 mph. |
| Mon Hi: 69°FHi: 21°C Lo: 41°F Lo: 5°C |
Monday... Sunny. Highs in the upper 60s. |
| Tue Hi: 75°FHi: 24°C Lo: 41°F Lo: 5°C |
Tuesday... Mostly clear. Lows in the lower 40s. Highs in the mid 70s. |
| Wed Hi: 75°FHi: 24°C Lo: 41°F Lo: 5°C |
Wednesday... Mostly clear. Lows in the lower 40s. Highs in the mid 70s. |
| Wed Hi: 75°FHi: 24°C Lo: 45°F Lo: 7°C |
Wednesday... Mostly clear. Lows in the lower 40s. Highs in the mid 70s. |
| Thu Hi: 79°FHi: 26°C Lo: 49°F Lo: 9°C |
Thursday... Mostly clear. Highs in the upper 70s. Lows in the upper 40s. |
| Fri Hi: 79°FHi: 26°C Lo: 49°F Lo: 9°C |
Friday... Mostly clear. Highs in the upper 70s. Lows in the upper 40s. |
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