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City of Harrisburg, ILHarrisburg, IL 7-Day Night Weather Forecast
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Harrisburg, IL Weather Forecast
Harrisburg, IL Weather Forecast Date: 1217 PM CST Sat Nov 14 2026
The area/counties/county of: Saline, including the city of Harrisburg.or toggle through each period.
This Afternoon... Sunny. Highs in the lower 50s. North winds around 5 mph.
Tonight... Mostly clear. Lows in the upper 20s. Calm winds.
Sunday... Mostly sunny. Highs in the mid 50s. Calm winds, becoming northeast around 5 mph in the afternoon.
Sunday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 20s. Calm winds.
Monday... Sunny. Highs in the mid 50s. Calm winds, becoming east around 5 mph in the afternoon.
Monday Night... Clear. Lows in the lower 30s. Highs around 60.
Tuesday... Clear. Lows in the lower 30s. Highs around 60.
Wednesday... Sunny. Highs in the mid 60s.
Wednesday Night... Partly cloudy. Lows around 40. Highs in the upper 60s.
Thursday... Partly cloudy. Lows around 40. Highs in the upper 60s.
Thursday Night... Partly cloudy. Lows in the mid 40s. Highs around 70.
POP = Probability of Precipitation
Harrisburg Radar Loop
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