Weather WorldNiantic, IL 7-Day Weather Forecast
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Niantic Weather Forecast
Niantic, IL Weather Forecast Date: 337 PM CDT Tue Sep 08 2026
Weather forecast for Niantic, IL
Tonight Lo: 71°F Lo: 22°C |
Tonight... Mostly clear. Not as cool with lows in the lower 70s. South winds 5 to 10 mph. |
Wed Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Wednesday... Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. West winds around 10 mph. Chance of rain 30%. Heat index values up to 100. |
Thu Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Thursday... Showers likely in the morning, then partly sunny in the afternoon. Highs in the lower 80s. Northwest winds 5 to 10 mph. Chance of rain 70%. |
Fri Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Friday... Mostly clear. Highs in the mid 80s. Lows in the mid 60s. |
| Sat Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Saturday... Mostly sunny. Highs in the upper 80s. |
Sun Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Sunday... Partly cloudy with a chance of showers. Highs in the upper 80s. Lows in the mid 60s. Chance of rain 30%. |
| Mon Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Monday... Partly cloudy with a chance of showers. Highs in the upper 80s. Lows in the mid 60s. Chance of rain 30%. |
| Mon Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Monday... Partly cloudy with a chance of showers. Highs in the upper 80s. Lows in the mid 60s. Chance of rain 30%. |
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