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City of Martinsville, ILMartinsville, IL 7-Day Weather Forecast
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Martinsville Weather Forecast
Martinsville, IL Weather Forecast Date: 737 PM CDT Sat Aug 08 2026
Weather forecast for Martinsville, IL
Tonight Lo: 70°F Lo: 21°C |
Tonight... Mostly clear. Lows around 70. Southwest winds around 5 mph. |
Sun Hi: 89°FHi: 32°C Lo: 71°F Lo: 22°C |
Sunday... Patchy fog in the morning. Sunny with highs in the upper 80s. South winds 10 to 15 mph. |
Mon Hi: 90°FHi: 32°C Lo: 75°F Lo: 24°C |
Monday... Mostly sunny. Humid with highs around 90. Southwest winds around 10 mph with gusts up to 20 mph. Heat index values up to 103. |
Tue Hi: 90°FHi: 32°C Lo: 71°F Lo: 22°C |
Tuesday... Mostly sunny. A chance of showers and thunderstorms in the morning. Highs around 90. Chance of rain 30%. Heat index values up to 100. |
| Wed Hi: 89°FHi: 32°C Lo: 69°F Lo: 21°C |
Wednesday... Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50%. |
| Thu Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Thursday... Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50%. |
Fri Hi: 80°FHi: 27°C Lo: 65°F Lo: 18°C |
Friday... Partly sunny. A chance of showers in the morning. Highs around 80. Chance of rain 40%. |
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