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Round Knob, IL 7-Day Night Weather Forecast
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Round Knob, IL Weather Forecast
Round Knob, IL Weather Forecast Date: 128 PM CDT Thu Sep 17 2026
The area/counties/county of: Massac, including the city of Metropolis.or toggle through each period.
This Afternoon... Sunny, hot. Near steady temperature in the upper 90s. Southwest winds around 5 mph.
Tonight... Mostly clear. Lows in the lower 70s. Calm winds.
Friday... Sunny, hot with highs in the upper 90s. Calm winds, becoming west around 5 mph in the afternoon.
Friday Night... Mostly clear. Lows in the lower 70s. Calm winds.
Saturday... Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph.
Saturday Night... Mostly clear. Hot. Lows in the lower 70s. Highs in the upper 90s.
Sunday... Mostly clear. Hot. Lows in the lower 70s. Highs in the upper 90s.
Sunday Night... Partly cloudy. Lows in the lower 70s. Highs in the lower 90s.
Monday... Partly cloudy. Lows in the lower 70s. Highs in the lower 90s.
Monday Night... Partly cloudy with a chance of showers in the evening, then mostly cloudy after midnight. Lows in the mid 60s. Chance of rain 30%.
Tuesday... Mostly sunny. Highs in the mid 80s.
Tuesday Night... Mostly clear. Lows in the lower 60s. Highs in the lower 80s.
POP = Probability of Precipitation
Round Knob Radar Loop
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