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Harmon, IL Weather Forecast
Harmon, IL Weather Forecast Date: 921 PM CDT Mon Oct 19 2026
The area/counties/county of: Lee, including the city of Dixon.or toggle through each period.
Rest of Tonight... Partly cloudy late in the evening, then becoming mostly clear. Lows in the lower 40s. Light and variable winds, becoming east around 5 mph after midnight.
Tuesday... Sunny. Highs in the upper 60s. East winds around 5 mph.
Tuesday Night... Clear. Lows in the mid 40s. Southeast winds around 5 mph.
Wednesday... Mostly sunny. Highs in the lower 70s. Light and variable winds, becoming southwest around 5 mph in the afternoon.
Wednesday Night... Mostly clear. Lows in the upper 40s. Light and variable winds.
Thursday... Mostly sunny. Highs in the lower 70s.
Thursday Night... Clear. Lows in the upper 40s.
Friday... Mostly sunny. Highs in the lower 70s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.
Saturday... Partly cloudy. Highs around 70.
Saturday Night... Mostly cloudy. Lows in the lower 50s.
Sunday... Mostly cloudy. Highs in the lower 70s.
Sunday Night... Partly cloudy. Lows in the upper 40s.
POP = Probability of Precipitation
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