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Lamar, AR Weather Forecast
Lamar, AR Weather Forecast Date: 850 AM CDT Tue Oct 27 2026
The area/counties/county of: Southern Johnson County, including the cities of: Clarksville, Coal Hill, Hartman, and Knoxville.or toggle through each period.
Today... Mostly cloudy this morning, then clearing. Highs in the upper 70s. East winds around 5 mph, becoming southeast around 5 mph this afternoon.
Tonight... Mostly clear. Lows in the lower 50s. East winds around 5 mph.
Wednesday... Sunny. Highs in the lower 80s. East winds around 5 mph, becoming southeast in the afternoon.
Wednesday Night... Mostly clear. Lows in the mid 50s. East winds around 5 mph.
Thursday... Sunny. Highs in the lower 80s. Southeast winds around 5 mph.
Thursday Night... Mostly cloudy. Lows in the upper 50s. Highs in the mid 70s.
Friday... Mostly cloudy. Lows in the upper 50s. Highs in the mid 70s.
Friday Night... Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 50s. Chance of rain 40%.
Saturday... Showers likely. Highs in the lower 70s. Chance of rain 70%.
Saturday Night... Mostly cloudy with a 20% chance of showers. Lows in the mid 50s.
Sunday... Partly sunny. Highs in the upper 70s.
Sunday Night... Mostly cloudy with a 40% chance of showers. Lows in the upper 50s.
POP = Probability of Precipitation
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