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Castleton, IL Weather Forecast
Castleton, IL Weather Forecast Date: 437 PM CDT Fri Oct 23 2026
The area/counties/county of: Stark, including the city of Toulon.or toggle through each period.
Tonight... Mostly clear this evening, then becoming partly cloudy. Lows in the lower 50s. Southeast winds around 5 mph.
Saturday... Mostly sunny. Highs in the mid 70s. South winds 5 to 10 mph.
Saturday Night... Partly cloudy. Lows around 50. South winds around 5 mph.
Sunday... Mostly sunny. Highs in the mid 70s. South winds around 5 mph.
Sunday Night... Mostly cloudy. Lows in the lower 50s. South winds around 5 mph in the evening, becoming light and variable.
Monday... Mostly cloudy. Highs in the lower 70s. Lows in the upper 40s.
Tuesday... Mostly cloudy. Highs in the lower 70s. Lows in the upper 40s.
Wednesday... Partly cloudy. Highs in the lower 70s. Lows around 50.
Thursday... Partly cloudy. Highs in the lower 70s. Lows around 50.
Thursday Night... Partly cloudy. Lows in the mid 40s. Highs in the mid 60s.
POP = Probability of Precipitation
Castleton Radar Loop
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