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Riverton, IL Weather Forecast
Riverton, IL Weather Forecast Date: 127 PM CDT Sat Sep 12 2026
The area/counties/county of: Sangamon, including the city of Springfield.or toggle through each period.
This Afternoon... Mostly sunny. Near steady temperature in the upper 80s. West winds around 5 mph.
Tonight... Partly cloudy. Lows in the mid 60s. North winds around 5 mph.
Sunday... Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. North winds 5 to 10 mph. Chance of rain 30%.
Sunday Night... Mostly cloudy with a chance of showers. Lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of rain 40%.
Monday... Partly sunny. Highs in the lower 80s. East winds 10 to 15 mph.
Monday Night... Mostly clear. Not as cool with lows in the upper 60s.
Tuesday... Mostly sunny. Warmer with highs in the mid 90s. Heat index values up to 100 in the afternoon.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the upper 60s. Chance of rain 50%.
Wednesday... Partly sunny. A chance of showers in the morning. Highs in the lower 90s. Chance of rain 50%.
Wednesday Night... Partly cloudy. A chance of showers after midnight. Lows in the lower 70s. Chance of rain 40%.
Thursday... Partly sunny with a chance of showers. Highs in the upper 80s. Chance of rain 50%.
Thursday Night... Partly cloudy. Lows in the mid 60s. Highs in the mid 80s.
POP = Probability of Precipitation
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